Started refactor to lazily compilable shaders.

.idea/codeStyles/Project.xml

@@ -147,6 +147,9 @@
         <pair source="c" header="h" fileNamingConvention="SNAKE_CASE" />
       </extensions>
     </files>
+    <codeStyleSettings language="Glsl">
+      <option name="SPACE_BEFORE_COLON" value="false" />
+    </codeStyleSettings>
     <codeStyleSettings language="ObjectiveC">
       <indentOptions>
         <option name="CONTINUATION_INDENT_SIZE" value="4" />

.idea/editor.xml

@@ -98,6 +98,483 @@
     <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/INDENT_SIZE/@EntryValue" value="4" type="int" />
     <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/CONTINUOUS_LINE_INDENT/@EntryValue" value="Single" type="string" />
     <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/TAB_WIDTH/@EntryValue" value="4" type="int" />
-    <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/ALIGNMENT_TAB_FILL_STYLE/@EntryValue" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppSmartPointerVsMakeFunction/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppCStyleCast/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppFunctionalStyleCast/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppReinterpretCastFromVoidPtr/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNonExplicitConvertingConstructor/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNonExplicitConversionOperator/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDiscardedPostfixOperatorResult/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppConstValueFunctionReturnType/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMemberFunctionMayBeConst/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMemberFunctionMayBeStatic/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppLocalVariableMayBeConst/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppParameterMayBeConst/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppVariableCanBeMadeConstexpr/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppParameterMayBeConstPtrOrRef/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPassValueParameterByConstReference/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppThrowExpressionCanBeReplacedWithRethrow/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppZeroConstantCanBeReplacedWithNullptr/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppCompileTimeConstantCanBeReplacedWithBooleanConstant/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppIfCanBeReplacedByConstexprIf/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=IfStdIsConstantEvaluatedCanBeReplaced/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=StdIsConstantEvaluatedWillAlwaysEvaluateToConstant/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=ConstevalIfIsAlwaysConstant/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppClassCanBeFinal/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseStructuredBinding/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseTypeTraitAlias/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseAlgorithmWithCount/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseRangeAlgorithm/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseElementsView/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseStdSize/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppForLoopCanBeReplacedWithWhile/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppJoinDeclarationAndAssignment/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppReplaceTieWithStructuredBinding/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppReplaceMemsetWithZeroInitialization/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseAssociativeContains/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseEraseAlgorithm/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseFamiliarTemplateSyntaxForGenericLambdas/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppTooWideScope/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppTooWideScopeInitStatement/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantNamespaceDefinition/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNonInlineFunctionDefinitionInHeaderFile/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNonInlineVariableDefinitionInHeaderFile/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppFunctionIsNotImplemented/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPrivateSpecialMemberFunctionIsNotImplemented/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppHiddenFunction/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppHidingFunction/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPolymorphicClassWithNonVirtualPublicDestructor/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppAbstractClassWithoutSpecifier/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppIncompleteSwitchStatement/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDefaultCaseNotHandledInSwitchStatement/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPossiblyErroneousEmptyStatements/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppExpressionWithoutSideEffects/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNoDiscardExpression/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppFunctionResultShouldBeUsed/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMissingKeywordThrow/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDependentTypeWithoutTypenameKeyword/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDependentTemplateWithoutTemplateKeyword/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppImplicitDefaultConstructorNotAvailable/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppClassNeedsConstructorBecauseOfUninitializedMember/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUninitializedNonStaticDataMember/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRangeBasedForIncompatibleReference/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppZeroValuedExpressionUsedAsNullPointer/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPossiblyUnintendedObjectSlicing/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPossiblyUninitializedMember/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeclaratorDisambiguatedAsFunction/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppVirtualFunctionInFinalClass/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMustBePublicVirtualToImplementInterface/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeclarationSpecifierWithoutDeclarators/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppEmptyDeclaration/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeclarationHidesLocal/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeclarationHidesUncapturedLocal/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMismatchedClassTags/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUsingResultOfAssignmentAsCondition/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppIntegralToPointerConversion/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPointerToIntegralConversion/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppIncompatiblePointerConversion/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPointerConversionDropsQualifiers/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppStringLiteralToCharPointerConversion/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNonExceptionSafeResourceAcquisition/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppVirtualFunctionCallInsideCtor/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppAbstractVirtualFunctionCallInCtor/@EntryIndexedValue" value="ERROR" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppInvalidLineContinuation/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPrintfBadFormat/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPrintfRiskyFormat/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPrintfMissedArg/@EntryIndexedValue" value="ERROR" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppPrintfExtraArg/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppBoostFormatBadCode/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppBoostFormatLegacyCode/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppBoostFormatMixedArgs/@EntryIndexedValue" value="ERROR" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppBoostFormatTooFewArgs/@EntryIndexedValue" value="ERROR" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppBoostFormatTooManyArgs/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeprecatedEntity/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMissingIncludeGuard/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDoxygenSyntaxError/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDoxygenUnresolvedReference/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDoxygenUndocumentedParameter/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeletingVoidPointer/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppBooleanIncrementExpression/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDeprecatedRegisterStorageClassSpecifier/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppIdenticalOperandsInBinaryExpression/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppEqualOperandsInBinaryExpression/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedefinitionOfDefaultArgumentInOverrideFunction/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUnnamedNamespaceInHeaderFile/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppParameterNamesMismatch/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDefaultedSpecialMemberFunctionIsImplicitlyDeleted/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppNodiscardFunctionWithoutReturnValue/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantComplexityInComparison/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppAbstractFinalClass/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppSpecialFunctionWithoutNoexceptSpecification/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUnsignedZeroComparison/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMultiCharacterLiteral/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMultiCharacterWideLiteral/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantQualifier/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantAccessSpecifier/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppAccessSpecifierWithNoDeclarations/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantTypenameKeyword/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantTemplateKeyword/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantElseKeyword/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantElseKeywordInsideCompoundStatement/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantControlFlowJump/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantEmptyStatement/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantEmptyDeclaration/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantParentheses/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantLambdaParameterList/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantCastExpression/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppHeaderHasBeenAlreadyIncluded/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppTemplateArgumentsCanBeDeduced/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantTemplateArguments/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppStaticSpecifierOnAnonymousNamespaceMember/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantStaticSpecifierOnMemberAllocationFunction/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantStaticSpecifierOnThreadLocalLocalVariable/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantBaseClassAccessSpecifier/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantInlineSpecifier/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantConstSpecifier/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantBooleanExpressionArgument/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantVoidArgumentList/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantMemberInitializer/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantBaseClassInitializer/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppConstParameterInDeclaration/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppVolatileParameterInDeclaration/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppFinalFunctionInFinalClass/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppFinalNonOverridingVirtualFunction/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantElaboratedTypeSpecifier/@EntryIndexedValue" value="HINT" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantDereferencingAndTakingAddress/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantConditionalExpression/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppConditionalExpressionCanBeSimplified/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantExportKeyword/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppRedundantZeroInitializerInAggregateInitialization/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUserDefinedLiteralSuffixDoesNotStartWithUnderscore/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppClassIsIncomplete/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppTemplateParameterShadowing/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMutableSpecifierOnReferenceMember/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDefaultInitializationWithNoUserConstructor/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppExplicitSpecializationInNonNamespaceScope/@EntryIndexedValue" value="WARNING" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUnionMemberOfReferenceType/@EntryIndexedValue" value="WARNING" type="string" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppEvaluationFailure/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppLocalVariableWithNonTrivialDtorIsNeverUsed/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppParameterNeverUsed/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppTemplateParameterNeverUsed/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppEntityUsedOnlyInUnevaluatedContext/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppObjectMemberMightNotBeInitialized/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppSomeObjectMembersMightNotBeInitialized/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMsExtBindingRValueToLvalueReference/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMsExtDoubleUserConversionInCopyInit/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppMsExtCopyElisionInCopyInitDeclarator/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAConstantConditions/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAMemoryLeak/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAInvalidatedMemory/@EntryIndexRemoved" />
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+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFALocalValueEscapesFunction/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAConstantParameter/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAConstantFunctionResult/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAArrayIndexOutOfBounds/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAUnreachableCode/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAUnreachableFunctionCall/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAEndlessLoop/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAInfiniteRecursion/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAUnusedValue/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFAUnreadVariable/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppDFATimeOver/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppInconsistentNaming/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=StringLiteralTypo/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CommentTypo/@EntryIndexRemoved" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=IdentifierTypo/@EntryIndexRemoved" />
   </component>
 </project>

.idea/misc.xml

@@ -1,11 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="BackendCodeEditorMiscSettings">
-    <option name="/Default/Housekeeping/GlobalSettingsUpgraded/IsUpgraded/@EntryValue" value="true" type="bool" />
-    <option name="/Default/Environment/Hierarchy/GeneratedFilesCacheKey/Timestamp/@EntryValue" value="69" type="long" />
-    <option name="/Default/Housekeeping/OptionsDialog/SelectedPageId/@EntryValue" value="CppFormatterOtherPage" type="string" />
-    <option name="/Default/Housekeeping/RefactoringsMru/RenameRefactoring/DoSearchForTextInStrings/@EntryValue" />
-  </component>
   <component name="CMakePythonSetting">
     <option name="pythonIntegrationState" value="YES" />
   </component>

.idea/vcs.xml

@@ -3,6 +3,5 @@
   <component name="VcsDirectoryMappings">
     <mapping directory="$PROJECT_DIR$" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/libraries/include/glm" vcs="Git" />
-    <mapping directory="$PROJECT_DIR$/libraries/include/stb" vcs="Git" />
   </component>
 </project>

CMakeLists.txt

@@ -102,12 +102,11 @@ add_executable(z3d main.cpp
         source/opengl/handles/shader_program_handle.cpp
         include/opengl/shader_program_lookup.hpp
         source/opengl/shader_program_lookup.cpp
-        include/shader_program/attributes/mesh_attributes.hpp
         include/shader_program/attributes/point_cloud_attributes.hpp
         include/shader_program/uniforms/mesh_uniforms.hpp
         include/shader_program/uniforms/point_cloud_uniforms.hpp
-        include/shader_program/capabilities/mesh_capabilities.hpp
+        include/shader_program/features/mesh_features.hpp
-        include/shader_program/capabilities/point_cloud_capabilities.hpp
+        include/shader_program/features/point_cloud_features.hpp
         include/rendering/requirements/mesh_requirements.hpp
         include/rendering/requirements/point_cloud_requirements.hpp
         include/rendering/modes/mesh_modes.hpp
@@ -123,11 +122,11 @@ add_executable(z3d main.cpp
         source/geometry/normal_estimation.cpp
         include/geometry/normal_estimation.hpp
         include/assets/components/texture_components.hpp
-        include/util/enum_operators.hpp
+        include/util/enum_bitfield_operators.hpp
         include/assets/dynamic_read_buffers/dynamic_texture_buffer.hpp
         source/assets/dynamic_read_buffers/dynamic_mesh_buffer.ipp
         source/assets/dynamic_read_buffers/dynamic_material_buffer.ipp
-        include/assets/dynamic_read_buffers/dynamic_vertex_buffer.hpp
+        include/assets/dynamic_read_buffers/generic/dynamic_vertex_buffer.hpp
         source/assets/dynamic_read_buffers/dynamic_model_buffer.ipp
         source/assets/dynamic_read_buffers/dynamic_texture_buffer.ipp
         source/assets/dynamic_read_buffers/dynamic_point_cloud_buffer.ipp
@@ -173,12 +172,15 @@ add_executable(z3d main.cpp
         include/assets/dynamic_data_loaders/dynamic_material_library_loader.hpp
         include/assets/prefetch_lookups/material_library_prefetch_lookup.hpp
         include/assets/prefetch_lookups/shader_prefetch_lookup.hpp
-        include/assets/dynamic_data_stores/dynamic_shader_store.hpp
+        include/assets/dynamic_data_stores/dynamic_shader_source_store.hpp
         include/assets/data_loaders/generic/generic_3dtk_loader.hpp
         source/assets/data_loaders/generic/generic_3dtk_loader.ipp
         include/assets/prefetch_lookup.hpp
         source/assets/prefetch_lookups/pose_prefetch_lookup.cpp
         include/assets/dynamic_data_store.hpp
+        include/opengl/data_uploaders/shader_program_compiler.hpp
+        include/shader_program/metadata_type.hpp
+        source/opengl/data_uploaders/shader_compiler.cpp
 )
 
 target_include_directories(z3d PRIVATE include)

include/assets/components/material_components.hpp

@@ -3,7 +3,7 @@
 #include <tuple>
 #include "../dynamic_read_buffers"
 #include "assets/data/surface_properties.hpp"
-#include "util/enum_operators.hpp"
+#include "util/enum_bitfield_operators.hpp"
 
 namespace components::material
 {
@@ -56,4 +56,4 @@ constexpr inline auto count = std::tuple_size_v<all>;
 
 } // namespace material_component
 
-DEFINE_ENUM_FLAG_OPERATORS(components::material::flags)
+DEFINE_ENUM_BITFIELD_OPERATORS(components::material::flags)

include/assets/components/mesh_vertex_components.hpp

@@ -2,7 +2,7 @@
 
 #include <array>
 #include <tuple>
-#include "util/enum_operators.hpp"
+#include "util/enum_bitfield_operators.hpp"
 
 namespace components::mesh_vertex {
 
@@ -36,4 +36,4 @@ constexpr inline auto count = std::tuple_size_v<all>;
 
 } // namespace components::mesh_vertex
 
-DEFINE_ENUM_FLAG_OPERATORS(components::mesh_vertex::flags)
+DEFINE_ENUM_BITFIELD_OPERATORS(components::mesh_vertex::flags)

include/assets/components/point_cloud_vertex_components.hpp

@@ -2,7 +2,7 @@
 
 #include <array>
 #include <tuple>
-#include "util/enum_operators.hpp"
+#include "util/enum_bitfield_operators.hpp"
 
 namespace components::point_cloud_vertex {
 
@@ -33,4 +33,4 @@ constexpr inline auto count = std::tuple_size_v<all>;
 
 } // namespace components::point_cloud_vertex
 
-DEFINE_ENUM_FLAG_OPERATORS(components::point_cloud_vertex::flags)
+DEFINE_ENUM_BITFIELD_OPERATORS(components::point_cloud_vertex::flags)

include/assets/components/texture_components.hpp

@@ -2,7 +2,7 @@
 
 #include <tuple>
 #include <cinttypes>
-#include "util/enum_operators.hpp"
+#include "util/enum_bitfield_operators.hpp"
 
 namespace components::texture {
 
@@ -25,4 +25,4 @@ constexpr inline auto count = std::tuple_size_v<all>;
 
 } // namespace components::texture
 
-DEFINE_ENUM_FLAG_OPERATORS(components::texture::flags)
+DEFINE_ENUM_BITFIELD_OPERATORS(components::texture::flags)

include/assets/data_loaders/glsl_loader.hpp

@@ -24,7 +24,7 @@ struct glsl_loader
 		dynamic_shader_buffer& buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 };

include/assets/data_loaders/kitti_loader.hpp

@@ -26,7 +26,7 @@ struct kitti_loader
 		dynamic_point_cloud_buffer& buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 

include/assets/data_loaders/kitti_pose_loader.hpp

@@ -23,7 +23,7 @@ struct kitti_pose_loader
 		dynamic_pose_buffer& buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 

include/assets/data_loaders/mtl_loader.hpp

@@ -41,7 +41,7 @@ struct mtl_loader
 		dynamic_material_library_buffer& material_library_buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 

include/assets/data_loaders/obj_loader.hpp

@@ -38,7 +38,7 @@ struct obj_loader {
 		dynamic_mesh_buffer& buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 
@@ -76,7 +76,7 @@ protected:
 		std::set<indexed_vertex_type>& vertex_ids,
 		std::ifstream& in,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic
 	);
 };

include/assets/data_loaders/stl_loader.hpp

@@ -24,7 +24,7 @@ struct stl_loader {
 		dynamic_mesh_buffer& buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 };

include/assets/data_loaders/threedtk_pose_loader.hpp

@@ -23,7 +23,7 @@ struct threedtk_pose_loader
 		dynamic_pose_buffer& buffer,
 		const file_dir_list& paths,
 		prefetch_lookup& id_lookup,
-		dynamic_data_store& store,
+		dynamic_shader_source_store& store,
 		bool pedantic = false
 	);
 

include/assets/dynamic_data_store.hpp

@@ -5,7 +5,7 @@
 #include "dynamic_data_stores/dynamic_mesh_store.hpp"
 #include "dynamic_data_stores/dynamic_point_cloud_store.hpp"
 #include "dynamic_data_stores/dynamic_pose_store.hpp"
-#include "dynamic_data_stores/dynamic_shader_store.hpp"
+#include "dynamic_data_stores/dynamic_shader_source_store.hpp"
 #include "dynamic_data_stores/dynamic_texture_store.hpp"
 
 struct dynamic_data_store

include/assets/dynamic_data_stores/dynamic_shader_source_store.hpp

@@ -0,0 +1,7 @@
+#pragma once
+
+#include "generic/generic_dynamic_store.hpp"
+#include "assets/dynamic_read_buffers/dynamic_shader_buffer.hpp"
+
+// TODO use compressed store where all shaders are condensed into one vector
+using dynamic_shader_source_store = generic_dynamic_store<dynamic_shader_buffer>;

include/assets/dynamic_data_stores/dynamic_shader_store.hpp

@@ -1,9 +0,0 @@
-#pragma once
-
-#include "generic/generic_dynamic_store.hpp"
-#include "glm/mat4x4.hpp"
-
-class dynamic_shader_store {
-
-
-};

include/opengl/data_uploaders/shader_compiler.hpp

@@ -0,0 +1,204 @@
+#pragma once
+
+#include <unordered_map>
+#include <bit>
+#include <format>
+#include <ranges>
+#include <bits/ranges_algo.h>
+
+#include "assets/dynamic_data_stores/dynamic_shader_source_store.hpp"
+#include "opengl/shader_program_lookup.hpp"
+#include "opengl/handles/shader_handle.hpp"
+#include "opengl/handles/shader_program_handle.hpp"
+#include "shader_program/metadata_type.hpp"
+#include "shader_program/features/mesh_features.hpp"
+#include "shader_program/features/point_cloud_features.hpp"
+#include "util/string_lookup.hpp"
+#include "shader_program/metadata_type.hpp"
+
+namespace zgl
+{
+class shader_program_compiler
+{
+
+public:
+
+
+
+	// compile shader programs for given requirements
+	// cache shader programs with their capabilities
+	// store sstream for creating defines
+
+	// register shader source code
+	// store define types for these shaders as bitmap
+	void register_shader_sources(
+		const dynamic_shader_source_store& shader_sources
+	);
+
+	void compile_shaders(
+		const dynamic_shader_source_store& shader_sources,
+		std::span<const shader_program::metadata_type> required_capabilities,
+		std::vector<shader_handle>& shader_handles
+	);
+
+
+protected:
+	void tokenize_declarations(
+		std::string_view source,
+		std::vector<std::string_view> tokens,
+		std::vector<std::size_t> declaration_token_counts,
+		std::span<std::size_t> declaration_type_indices
+	);
+
+	std::optional<shader_program::metadata_type> parse_metadata_from_tokens(
+		std::span<const std::string_view> tokens,
+		std::span<const std::size_t> declaration_token_counts,
+		std::span<const std::size_t> declaration_type_indices
+	);
+
+	[[nodiscard]] static bool parse_stage_declaration(
+		std::span<const std::string_view> tokens,
+		shader_program::metadata_type& metadata
+	);
+
+	[[nodiscard]] static bool parse_geometry_declaration(
+		std::span<const std::string_view> tokens,
+		shader_program::metadata_type& metadata
+	);
+
+	[[nodiscard]] static bool parse_features_declaration(
+		std::span<const std::string_view> tokens,
+		shader_program::metadata_type& metadata
+	);
+
+	[[nodiscard]] static bool parse_feature_toggles_declaration(
+		std::span<const std::string_view> tokens,
+		shader_program::metadata_type& metadata
+	);
+
+	template<typename T>
+	static void parse_feature_tokens(
+		std::span<const std::string_view> tokens,
+		const ztu::string_lookup<T>& feature_lookup,
+		T& features
+	);
+
+	std::optional<dynamic_shader_source_store::id_type> zgl::shader_program_compiler::find_compatible_shader_source(
+		shader_program::metadata_type& requirements
+	);
+
+	template<typename T>
+	void add_required_feature_defines(
+		T toggle_flags,
+		std::span<const std::string> defines,
+		std::vector<const char*>& shader_strings
+	);
+
+private:
+	enum class metadata_declaration_type : std::size_t
+	{
+		stage = 0,
+		geometry = 1,
+		features = 2,
+		feature_toggles = 3,
+		invalid = std::numeric_limits<std::size_t>::max()
+	};
+
+	inline static auto declaration_lookup = ztu::string_lookup<metadata_declaration_type>{
+		{ "STAGE", metadata_declaration_type::stage },
+		{ "GEOMETRY", metadata_declaration_type::geometry },
+		{ "FEATURES", metadata_declaration_type::features },
+		{ "FEATURE_TOGGLES", metadata_declaration_type::feature_toggles }
+	};
+
+	inline static auto stage_lookup = ztu::string_lookup<shader_program::stages>{
+		{ "VERTEX", shader_program::stages::vertex },
+		{ "GEOMETRY", shader_program::stages::geometry },
+		{ "FRAGMENT", shader_program::stages::fragment },
+	};
+
+	inline static auto geometry_lookup = ztu::string_lookup<shader_program::geometries>{
+		{ "MESH", shader_program::geometries::mesh },
+		{ "POINT_CLOUD", shader_program::geometries::point_cloud }
+	};
+
+	inline static auto mesh_feature_lookup = []
+	{
+		using namespace shader_program::features::mesh;
+
+		auto lookup = ztu::string_lookup<flags>{};
+		lookup.reserve(all.size());
+
+		constexpr auto all_flags = std::array{
+			flags::face, flags::line, flags::point,
+			flags::luminance, flags::color, flags::alpha,
+			flags::lighting, flags::texture, flags::uniform_color
+		};
+
+		for (const auto& [ define, flag ] : std::ranges::views::zip(defines, all_flags))
+		{
+			lookup.emplace(std::string(define), flag);
+		}
+
+		return lookup;
+	}();
+
+	inline static auto point_cloud_feature_lookup = []
+	{
+		using namespace shader_program::features::point_cloud;
+
+		auto lookup = ztu::string_lookup<flags>{};
+		lookup.reserve(all.size());
+
+		constexpr auto all_flags = std::array{
+			flags::square, flags::lighting, flags::luminance,
+			flags::color, flags::alpha, flags::uniform_color,
+			flags::rainbow
+		};
+
+		for (const auto& [ define, flag ] : std::ranges::views::zip(defines, all_flags))
+		{
+			lookup.emplace(std::string(define), flag);
+		}
+
+		return lookup;
+	}();
+
+	inline static auto mesh_feature_defines = []
+	{
+		using namespace shader_program::features::mesh;
+
+		auto statements = std::array<std::string, all.size()>{};
+
+		std::ranges::transform(
+			defines,
+			statements.begin(),
+			[](const auto& name) {
+				return std::format("#define {}\n", name);
+			}
+		);
+
+		return statements;
+	}();
+
+	inline static auto point_cloud_feature_defines = []
+	{
+		using namespace shader_program::features::point_cloud;
+
+		auto statements = std::array<std::string, all.size()>{};
+
+		std::ranges::transform(
+			defines,
+			statements.begin(),
+			[](const auto& name) {
+				return std::format("#define {}\n", name);
+			}
+		);
+
+		return statements;
+	}();
+
+
+	std::vector<std::pair<shader_program::metadata_type, dynamic_shader_source_store::id_type>> shader_lookup;
+};
+}

include/opengl/data_uploaders/shader_program_compiler.hpp

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <unordered_map>
+#include "assets/dynamic_data_stores/dynamic_shader_source_store.hpp"
+#include "opengl/shader_program_lookup.hpp"
+#include "opengl/handles/shader_program_handle.hpp"
+
+template<typename Capabilities>
+class shader_program_compiler
+{
+
+	public:
+
+
+	// compile shader programs for given requirements
+	// cache shader programs with their capabilities
+	// store sstream for creating defines
+
+	// register shader source code
+	// store define types for these shaders as bitmap
+	void register_shader_sources(
+		const dynamic_shader_source_store& shader_sources
+	);
+
+	void find_or_compile_shader_programs(
+		std::span<const Capabilities> required_capabilities,
+		zgl::shader_program_lookup& shader_program_lookup
+	);
+
+
+	// create metadata for all sources
+
+	// get
+
+protected:
+
+
+
+private:
+	std::unordered_map<dynamic_shader_source_store::id_type, Capabilities> shader_capabilities;
+
+};

include/opengl/data_uploaders/texture_data_uploader.hpp

@@ -16,26 +16,15 @@ class texture_data_uploader
 	) {
 
 		std::vector<GLuint> texture_ids;
-		std::vector<GLuint> invalid_texture_ids;
 
 		texture_ids.resize(dynamic_data.size());
 
 		glGenTextures(texture_ids.size(), texture_ids.data());
 
-		auto texture_id_it = texture_ids.begin();
+		const auto invalid_texture_ids = std::ranges::partition(
-
+			texture_ids,
-		for (std::size_t i{}; i != dynamic_data.size(); ++i)
+			[](GLuint texture_id)
 			{
-			const auto& texture_id = *texture_id_it;
-			const auto& texture = dynamic_data[i];
-
-			glBindTexture(GL_TEXTURE_2D, texture_id);
-
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
 				GLenum format;
 				switch (texture.components()) {
 					using enum components::texture::flags;
@@ -52,16 +41,17 @@ class texture_data_uploader
 					format = GL_RGBA;
 					break;
 				default:
-				format = GL_INVALID_ENUM;
+					return false;
-				break;
 				}
 
-			if (format == GL_INVALID_ENUM)
+				glBindTexture(GL_TEXTURE_2D, texture_id);
-			{
+
-				invalid_texture_ids.push_back(texture_id);
+				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-			}
+				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-			else
+				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-			{
+				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+
 				glTexImage2D(
 					GL_TEXTURE_2D, 0,
 					GL_RGBA8,
@@ -73,12 +63,16 @@ class texture_data_uploader
 					texture.data()
 				);
 				glGenerateMipmap(GL_TEXTURE_2D);
+				
+				return true;
 			}
-		}
+		);
 
 		glBindTexture(GL_TEXTURE_2D, 0);
 
 		glDeleteTextures(invalid_texture_ids.size(), invalid_texture_ids.data());
+
+		invalid_texture_ids.resize(texture_ids.size() - invalid_texture_ids.size());
 	}
 };
 }

include/rendering/requirements/mesh_requirements.hpp

@@ -2,7 +2,7 @@
 
 #include "assets/components/material_components.hpp"
 #include "assets/components/mesh_vertex_components.hpp"
-#include "shader_program/capabilities/mesh_capabilities.hpp"
+#include "shader_program/features/mesh_features.hpp"
 
 #include <array>
 

include/rendering/requirements/point_cloud_requirements.hpp

@@ -1,7 +1,7 @@
 #pragma once
 
 #include "assets/components/point_cloud_vertex_components.hpp"
-#include "shader_program/capabilities/point_cloud_capabilities.hpp"
+#include "shader_program/features/point_cloud_features.hpp"
 
 #include <array>
 

include/shader_program/attributes/mesh_attributes.hpp

@@ -2,82 +2,42 @@
 
 #include "opengl/shader_program_variable.hpp"
 #include <array>
+#include "util/enum_bitfield_operators.hpp"
+#include <string_view>
 
 namespace shader_program::attributes::mesh
 {
 
-enum class flags : int {
+enum class flags : unsigned {
 	none = 0,
 	position = 1 << 0,
 	normal = 1 << 1,
-	tex_coord = 1 << 2
+	luminance = 1 << 2,
+	color = 1 << 3,
+	alpha = 1 << 4,
+	tex_coord = 1 << 5
 };
 
-constexpr inline auto position = zgl::shader_program_variable({ GL_FLOAT_VEC3, 0 }, "vertex_position");
+constexpr inline auto position = zgl::shader_program_variable({ GL_FLOAT_VEC3, 0 }, "model_vertex_position");
-constexpr inline auto normal = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "vertex_normal");
+constexpr inline auto normal = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "model_vertex_normal");
-constexpr inline auto tex_coord = zgl::shader_program_variable({ GL_FLOAT_VEC2, 2 }, "vertex_tex_coord");
+constexpr inline auto luminance = zgl::shader_program_variable({ GL_FLOAT, 2 }, "model_vertex_l");
+constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 2 }, "model_vertex_rgb");
+constexpr inline auto alpha = zgl::shader_program_variable({ GL_FLOAT, 3 }, "model_vertex_a");
+constexpr inline auto tex_coord = zgl::shader_program_variable({ GL_FLOAT_VEC2, 2 }, "model_vertex_tex_coord");
 
 constexpr inline auto all = std::array{
-	position, normal, tex_coord
+	position, normal, luminance, color, alpha, tex_coord
+};
+
+constexpr inline auto names = std::array<std::string_view, 6>{
+	"position",
+	"normal",
+	"luminance",
+	"color",
+	"alpha",
+	"tex_coord"
 };
 
 }
 
-
+DEFINE_ENUM_BITFIELD_OPERATORS(shader_program::attributes::mesh::flags)
-[[nodiscard]] constexpr shader_program::attributes::mesh::flags operator|(
-	const shader_program::attributes::mesh::flags& a, const shader_program::attributes::mesh::flags& b
-) {
-	return static_cast<shader_program::attributes::mesh::flags>(static_cast<int>(a) | static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::attributes::mesh::flags operator&(
-	const shader_program::attributes::mesh::flags& a, const shader_program::attributes::mesh::flags& b
-) {
-	return static_cast<shader_program::attributes::mesh::flags>(static_cast<int>(a) & static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::attributes::mesh::flags operator^(
-	const shader_program::attributes::mesh::flags& a, const shader_program::attributes::mesh::flags& b
-) {
-	return static_cast<shader_program::attributes::mesh::flags>(static_cast<int>(a) ^ static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::attributes::mesh::flags operator~(const shader_program::attributes::mesh::flags& a) {
-	return static_cast<shader_program::attributes::mesh::flags>(~static_cast<int>(a));
-}
-
-constexpr shader_program::attributes::mesh::flags& operator|=(shader_program::attributes::mesh::flags& a, const shader_program::attributes::mesh::flags& b) {
-	return a = a | b;
-}
-
-constexpr shader_program::attributes::mesh::flags& operator&=(shader_program::attributes::mesh::flags& a, const shader_program::attributes::mesh::flags& b) {
-	return a = a & b;
-}
-
-constexpr shader_program::attributes::mesh::flags& operator^=(shader_program::attributes::mesh::flags& a, const shader_program::attributes::mesh::flags& b) {
-	return a = a ^ b;
-}
-
-[[nodiscard]] constexpr bool operator<(
-	shader_program::attributes::mesh::flags lhs, shader_program::attributes::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) < static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator<=(
-	shader_program::attributes::mesh::flags lhs, shader_program::attributes::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) <= static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>(
-	shader_program::attributes::mesh::flags lhs, shader_program::attributes::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) > static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>=(
-	shader_program::attributes::mesh::flags lhs, shader_program::attributes::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) >= static_cast<int>(rhs);
-}

include/shader_program/attributes/point_cloud_attributes.hpp

@@ -2,83 +2,40 @@
 
 #include "opengl/shader_program_variable.hpp"
 #include <array>
+#include "util/enum_bitfield_operators.hpp"
+#include <string_view>
 
 namespace shader_program::attributes::point_cloud
 {
 
-enum class flags : int {
+enum class flags : unsigned {
 	none = 0,
 	position = 1 << 0,
 	normal = 1 << 1,
+	luminance = 1 << 2,
 	color = 1 << 2,
-	reflectance = 1 << 3
+	alpha = 1 << 3
 };
 
-constexpr inline auto position = zgl::shader_program_variable({ GL_FLOAT_VEC3, 0 }, "vertex_position");
+constexpr inline auto position = zgl::shader_program_variable({ GL_FLOAT_VEC3, 0 }, "model_vertex_position");
-constexpr inline auto normal = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "vertex_normal");
+constexpr inline auto normal = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "model_vertex_normal");
-constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 2 }, "vertex_color");
+constexpr inline auto luminance = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "model_vertex_l");
-constexpr inline auto reflectance = zgl::shader_program_variable({ GL_FLOAT, 2 }, "vertex_reflectance");
+constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "model_vertex_rgb");
+constexpr inline auto alpha = zgl::shader_program_variable({ GL_FLOAT_VEC3, 1 }, "model_vertex_a");
 
 constexpr inline auto all = std::array{
-	position, normal, color, reflectance
+	position, normal, luminance, color, alpha
 };
 
+constexpr inline auto names = std::array<std::string_view, 5>{
+	"position",
+	"normal",
+	"luminance",
+	"color",
+	"alpha"
+};
+
+
 }
 
-[[nodiscard]] constexpr shader_program::attributes::point_cloud::flags operator|(
+DEFINE_ENUM_BITFIELD_OPERATORS(shader_program::attributes::point_cloud::flags)
-	const shader_program::attributes::point_cloud::flags& a, const shader_program::attributes::point_cloud::flags& b
-) {
-	return static_cast<shader_program::attributes::point_cloud::flags>(static_cast<int>(a) | static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::attributes::point_cloud::flags operator&(
-	const shader_program::attributes::point_cloud::flags& a, const shader_program::attributes::point_cloud::flags& b
-) {
-	return static_cast<shader_program::attributes::point_cloud::flags>(static_cast<int>(a) & static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::attributes::point_cloud::flags operator^(
-	const shader_program::attributes::point_cloud::flags& a, const shader_program::attributes::point_cloud::flags& b
-) {
-	return static_cast<shader_program::attributes::point_cloud::flags>(static_cast<int>(a) ^ static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::attributes::point_cloud::flags operator~(const shader_program::attributes::point_cloud::flags& a) {
-	return static_cast<shader_program::attributes::point_cloud::flags>(~static_cast<int>(a));
-}
-
-constexpr shader_program::attributes::point_cloud::flags& operator|=(shader_program::attributes::point_cloud::flags& a, const shader_program::attributes::point_cloud::flags& b) {
-	return a = a | b;
-}
-
-constexpr shader_program::attributes::point_cloud::flags& operator&=(shader_program::attributes::point_cloud::flags& a, const shader_program::attributes::point_cloud::flags& b) {
-	return a = a & b;
-}
-
-constexpr shader_program::attributes::point_cloud::flags& operator^=(shader_program::attributes::point_cloud::flags& a, const shader_program::attributes::point_cloud::flags& b) {
-	return a = a ^ b;
-}
-
-[[nodiscard]] constexpr bool operator<(
-	shader_program::attributes::point_cloud::flags lhs, shader_program::attributes::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) < static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator<=(
-	shader_program::attributes::point_cloud::flags lhs, shader_program::attributes::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) <= static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>(
-	shader_program::attributes::point_cloud::flags lhs, shader_program::attributes::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) > static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>=(
-	shader_program::attributes::point_cloud::flags lhs, shader_program::attributes::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) >= static_cast<int>(rhs);
-}

include/shader_program/capabilities/mesh_capabilities.hpp

@@ -1,85 +0,0 @@
-#pragma once
-
-#include "assets/components/mesh_vertex_components.hpp"
-#include "assets/components/point_cloud_vertex_components.hpp"
-#include "assets/components/material_components.hpp"
-#include "shader_program/attributes/mesh_attributes.hpp"
-#include "shader_program/uniforms/mesh_uniforms.hpp"
-
-namespace shader_program::capabilities::mesh
-{
-
-struct type
-{
-	attributes::mesh::flags attributes{
-		attributes::mesh::flags::none
-	};
-	uniforms::mesh::flags uniforms{
-		uniforms::mesh::flags::none
-	};
-};
-
-namespace indices
-{
-using type = ztu::u8;
-constexpr inline type position = 0;
-constexpr inline type lit = 1;
-constexpr inline type textured = 2;
-constexpr inline type uniform_color = 3;
-constexpr inline type uniform_alpha = 4;
-constexpr inline type point = 5;
-}
-
-enum class flags : int
-{
-	none = 0,
-	position = 1 << indices::position,
-	lit = 1 << indices::lit,
-	textured = 1 << indices::textured,
-	uniform_color = 1 << indices::uniform_color,
-	uniform_alpha = 1 << indices::uniform_alpha,
-	point = 1 << indices::point
-};
-
-constexpr inline auto position = type{
-	.attributes = attributes::mesh::flags::position,
-	.uniforms = uniforms::mesh::flags::mvp
-};
-
-constexpr inline auto lit = type{
-	.attributes = attributes::mesh::flags::normal,
-	.uniforms = (
-		uniforms::mesh::flags::model_matrix |
-		uniforms::mesh::flags::view_pos |
-		uniforms::mesh::flags::point_light_direction |
-		uniforms::mesh::flags::point_light_color |
-		uniforms::mesh::flags::ambient_light_color |
-		uniforms::mesh::flags::ambient_filter |
-		uniforms::mesh::flags::diffuse_filter |
-		uniforms::mesh::flags::specular_filter |
-		uniforms::mesh::flags::shininess
-	)
-};
-
-constexpr inline auto point = type{
- 	.uniforms = uniforms::mesh::flags::point_size
-};
-
-constexpr inline auto textured = type{
-	.attributes = attributes::mesh::flags::tex_coord,
-	.uniforms = uniforms::mesh::flags::tex
-};
-
-constexpr inline auto uniform_color  = type{
-	.uniforms = uniforms::mesh::flags::color
-};
-
-constexpr inline auto uniform_alpha = type{
-	.uniforms = uniforms::mesh::flags::alpha
-};
-
-constexpr inline auto all = std::array{
-	position, lit,  textured, uniform_color, uniform_alpha, point
-};
-
-}

include/shader_program/capabilities/point_cloud_capabilities.hpp

@@ -1,77 +0,0 @@
-#pragma once
-
-#include "shader_program/attributes/point_cloud_attributes.hpp"
-#include "shader_program/uniforms/point_cloud_uniforms.hpp"
-
-#include "assets/components/mesh_vertex_components.hpp"
-#include "assets/components/point_cloud_vertex_components.hpp"
-
-#include <array>
-
-namespace shader_program::capabilities::point_cloud
-{
-
-struct type
-{
-  attributes::point_cloud::flags attributes{
-  attributes::point_cloud::flags::none
- };
- uniforms::point_cloud::flags uniforms{
-  uniforms::point_cloud::flags::none
- };
-};
-
-namespace indices
-{
-using type = ztu::u8;
-constexpr inline type position = 0;
-constexpr inline type vertex_color = 1;
-constexpr inline type uniform_color = 2;
-constexpr inline type normal = 3;
-constexpr inline type reflectance = 4;
-constexpr inline type rainbow = 5;
-}
-
-enum class flags : int
-{
- none = 0,
- position = 1 << indices::position,
- vertex_color = 1 << indices::vertex_color,
- uniform_color = 1 << indices::uniform_color,
- normal = 1 << indices::normal,
- reflectance = 1 << indices::reflectance,
- rainbow = 1 << indices::rainbow
- };
-
-constexpr inline auto position = type{
-  .attributes = attributes::point_cloud::flags::position,
-  .uniforms = uniforms::point_cloud::flags::mvp
-};
-
-constexpr inline auto rainbow = type{};
-
-constexpr inline auto vertex_color = type{
-  .attributes = attributes::point_cloud::flags::color
-};
-
-constexpr inline auto uniform_color = type{
- .uniforms = uniforms::point_cloud::flags::color
-};
-
-constexpr inline auto normal = type{
-  .attributes = attributes::point_cloud::flags::normal,
-  .uniforms = (
-   uniforms::point_cloud::flags::model |
-    uniforms::point_cloud::flags::camera_position
-  )
-};
-
-constexpr inline auto reflectance = type{
-  .attributes = attributes::point_cloud::flags::reflectance
- };
-
-constexpr inline auto all = std::array{
- position, vertex_color, uniform_color, normal, reflectance, rainbow
-};
-
-}

include/shader_program/features/mesh_features.hpp

@@ -0,0 +1,134 @@
+#pragma once
+
+#include "assets/components/mesh_vertex_components.hpp"
+#include "assets/components/point_cloud_vertex_components.hpp"
+#include "assets/components/material_components.hpp"
+#include "shader_program/attributes/mesh_attributes.hpp"
+#include "shader_program/uniforms/mesh_uniforms.hpp"
+#include <array>
+#include <string_view>
+
+namespace shader_program::features::mesh
+{
+
+struct type
+{
+	attributes::mesh::flags attributes{
+		attributes::mesh::flags::none
+	};
+	uniforms::mesh::flags uniforms{
+		uniforms::mesh::flags::none
+	};
+};
+
+namespace indices
+{
+using type = ztu::u8;
+constexpr inline type face = 0;
+constexpr inline type line = 1;
+constexpr inline type point = 2;
+constexpr inline type luminance = 3;
+constexpr inline type color = 4;
+constexpr inline type alpha = 5;
+constexpr inline type lighting = 6;
+constexpr inline type texture = 7;
+constexpr inline type uniform_color = 8;
+}
+
+enum class flags : unsigned
+{
+	none = 0,
+	face = 1 << indices::face,
+	line = 1 << indices::line,
+	point = 1 << indices::point,
+	luminance = 1 << indices::luminance,
+	color = 1 << indices::color,
+	alpha = 1 << indices::alpha,
+	lighting = 1 << indices::lighting,
+	texture = 1 << indices::texture,
+	uniform_color = 1 << indices::uniform_color,
+};
+
+constexpr inline auto face = type{
+	.attributes = attributes::mesh::flags::position,
+	.uniforms = uniforms::mesh::flags::mvp_matrix
+};
+
+constexpr inline auto line = type{
+	.attributes = attributes::mesh::flags::position,
+	.uniforms = uniforms::mesh::flags::mvp_matrix
+};
+
+constexpr inline auto point = type{
+	.attributes = attributes::mesh::flags::position,
+	.uniforms = (
+		uniforms::mesh::flags::mvp_matrix |
+		uniforms::mesh::flags::point_size
+	)
+};
+
+constexpr inline auto luminance = type{
+	.attributes = attributes::mesh::flags::luminance
+};
+
+constexpr inline auto color = type{
+	.attributes = attributes::mesh::flags::color
+};
+
+constexpr inline auto alpha = type{
+	.attributes = attributes::mesh::flags::alpha
+};
+
+constexpr inline auto lighting = type{
+	.attributes = attributes::mesh::flags::normal,
+	.uniforms = (
+		uniforms::mesh::flags::model_matrix |
+		uniforms::mesh::flags::view_pos |
+		uniforms::mesh::flags::point_light_direction |
+		uniforms::mesh::flags::point_light_color |
+		uniforms::mesh::flags::ambient_light_color |
+		uniforms::mesh::flags::ambient_filter |
+		uniforms::mesh::flags::diffuse_filter |
+		uniforms::mesh::flags::specular_filter |
+		uniforms::mesh::flags::shininess
+	)
+};
+
+constexpr inline auto texture = type{
+	.attributes = attributes::mesh::flags::tex_coord,
+	.uniforms = uniforms::mesh::flags::tex
+};
+
+constexpr inline auto uniform_color = type{
+	.uniforms = uniforms::mesh::flags::color
+};
+
+constexpr inline auto all = std::array{
+	face, line, point, luminance, color, alpha, lighting, texture, uniform_color
+};
+
+constexpr inline auto names = std::array<std::string_view, 9>{
+	"face",
+	"line",
+	"point",
+	"luminance",
+	"color",
+	"alpha",
+	"lighting",
+	"texture",
+	"uniform_color"
+};
+
+constexpr inline auto defines = std::array<std::string_view, 9>{
+	"FACE",
+	"LINE",
+	"POINT",
+	"V_L",
+	"V_RGB",
+	"V_A",
+	"LIGHTING",
+	"TEXTURE",
+	"U_RGBA"
+};
+
+}

include/shader_program/features/point_cloud_features.hpp

@@ -0,0 +1,112 @@
+#pragma once
+
+#include "shader_program/attributes/point_cloud_attributes.hpp"
+#include "shader_program/uniforms/point_cloud_uniforms.hpp"
+
+#include "assets/components/mesh_vertex_components.hpp"
+#include "assets/components/point_cloud_vertex_components.hpp"
+
+#include <array>
+
+namespace shader_program::features::point_cloud
+{
+
+struct type
+{
+  attributes::point_cloud::flags attributes{
+  attributes::point_cloud::flags::none
+ };
+ uniforms::point_cloud::flags uniforms{
+  uniforms::point_cloud::flags::none
+ };
+};
+
+namespace indices
+{
+using type = ztu::u8;
+constexpr inline type square = 0;
+constexpr inline type lighting = 1;
+constexpr inline type luminance = 2;
+constexpr inline type color = 3;
+constexpr inline type alpha = 4;
+constexpr inline type uniform_color = 5;
+constexpr inline type rainbow = 6;
+}
+
+enum class flags : unsigned
+{
+ none = 0,
+ square = 1 << indices::square,
+ lighting = 1 << indices::lighting,
+ luminance = 1 << indices::luminance,
+ color = 1 << indices::color,
+ alpha = 1 << indices::alpha,
+ uniform_color = 1 << indices::uniform_color,
+ rainbow = 1 << indices::rainbow
+ };
+
+constexpr inline auto square = type{
+  .attributes = attributes::point_cloud::flags::position,
+  .uniforms = (
+    uniforms::point_cloud::flags::mvp_matrix |
+    uniforms::point_cloud::flags::point_size
+   )
+};
+
+constexpr inline auto lighting = type{
+ .attributes = attributes::point_cloud::flags::normal,
+ .uniforms = (
+  uniforms::point_cloud::flags::model_matrix |
+   uniforms::point_cloud::flags::camera_position
+ )
+};
+
+constexpr inline auto luminance = type{
+ .attributes = attributes::point_cloud::flags::luminance
+};
+
+constexpr inline auto color = type{
+ .attributes = attributes::point_cloud::flags::color
+};
+
+constexpr inline auto alpha = type{
+ .attributes = attributes::point_cloud::flags::alpha
+};
+
+constexpr inline auto uniform_color = type{
+ .uniforms = uniforms::point_cloud::flags::color
+};
+
+constexpr inline auto rainbow = type{
+ .uniforms = (
+  uniforms::point_cloud::flags::rainbow_offset_y |
+   uniforms::point_cloud::flags::rainbow_scale_y
+ )
+};
+
+constexpr inline auto all = std::array{
+ square, lighting, luminance, color, alpha, uniform_color, rainbow
+};
+
+constexpr inline auto names = std::array{
+ "square",
+ "lighting",
+ "luminance",
+ "color",
+ "alpha",
+ "uniform_color",
+ "rainbow"
+};
+
+constexpr inline auto defines = std::array{
+ "SQUARE",
+ "LIGHTING",
+ "V_L",
+ "V_RGB",
+ "V_A",
+ "U_RGBA",
+ "RAINBOW"
+};
+
+
+}

include/shader_program/metadata_type.hpp

@@ -0,0 +1,219 @@
+#pragma once
+
+#include <limits>
+#include <utility>
+
+#include "features/mesh_features.hpp"
+#include "features/point_cloud_features.hpp"
+
+namespace shader_program
+{
+
+enum class geometries : int
+{
+	mesh = 0,
+	point_cloud = 1
+};
+
+enum class stages : GLenum
+{
+	vertex = GL_VERTEX_SHADER,
+	geometry = GL_GEOMETRY_SHADER,
+	fragment = GL_FRAGMENT_SHADER
+};
+
+
+
+
+union combined_feature_type
+{
+	 features::mesh::flags mesh;
+	 features::point_cloud::flags point_cloud;
+
+	using generic_type = std::common_type_t<
+		std::underlying_type_t<features::mesh::flags>,
+		std::underlying_type_t<features::point_cloud::flags>
+	>;
+
+	generic_type generic(const geometries geometry) const noexcept
+	{
+		switch (geometry)
+		{
+			case geometries::mesh:
+				return static_cast<generic_type>(mesh);
+			case geometries::point_cloud:
+				return static_cast<generic_type>(point_cloud);
+		}
+		std::unreachable();
+	}
+
+	void from_generic(
+		const geometries geometry,
+		generic_type new_features
+	) noexcept {
+		switch (geometry)
+		{
+		case geometries::mesh:
+			mesh = static_cast<features::mesh::flags>(new_features);
+		case geometries::point_cloud:
+			point_cloud = static_cast<features::point_cloud::flags>(new_features);
+		}
+		std::unreachable();
+	}
+};
+
+
+struct metadata_type
+{
+	geometries geometry;
+	stages stage;
+	combined_feature_type features;
+	combined_feature_type feature_toggles;
+
+	std::pair<combined_feature_type::generic_type, combined_feature_type::generic_type> generic() const noexcept
+	{
+		switch (geometry)
+		{
+		case geometries::mesh:
+			return {
+				static_cast<combined_feature_type::generic_type>(features.mesh),
+				static_cast<combined_feature_type::generic_type>(feature_toggles.mesh)
+			};
+		case geometries::point_cloud:
+			return {
+				static_cast<combined_feature_type::generic_type>(features.point_cloud),
+				static_cast<combined_feature_type::generic_type>(feature_toggles.point_cloud)
+			};
+		}
+		std::unreachable();
+	}
+
+	void from_generic(
+		combined_feature_type::generic_type new_features,
+		combined_feature_type::generic_type new_feature_toggles
+	) noexcept {
+		switch (geometry)
+		{
+		case geometries::mesh:
+			features.mesh = static_cast<features::mesh::flags>(new_features);
+			feature_toggles.mesh = static_cast<features::mesh::flags>(new_feature_toggles);
+		case geometries::point_cloud:
+			features.point_cloud = static_cast<features::point_cloud::flags>(new_features);
+			feature_toggles.point_cloud = static_cast<features::point_cloud::flags>(new_feature_toggles);
+		}
+		std::unreachable();
+	}
+
+	auto operator<=>(const metadata_type& other) const noexcept
+	{
+		if (this->geometry == other.geometry)
+		{
+			switch (this->geometry)
+			{
+			case geometries::mesh:
+				return (
+					std::tie(this->stage, this->features.mesh, this->feature_toggles.mesh) <=>
+					std::tie(other.stage, other.features.mesh, other.feature_toggles.mesh)
+				);
+			case geometries::point_cloud:
+				return (
+					std::tie(this->stage, this->features.point_cloud, this->feature_toggles.point_cloud) <=>
+					std::tie(other.stage, other.features.point_cloud, other.feature_toggles.point_cloud)
+				);
+			}
+			std::unreachable();
+		}
+		else
+		{
+			return this->geometry <=> other.geometry;
+		}
+	}
+
+	bool operator==(const metadata_type& other) const noexcept
+	{
+		if (this->geometry == other.geometry)
+		{
+			switch (this->geometry)
+			{
+			case geometries::mesh:
+				return (
+					std::tie(this->stage, this->features.mesh, this->feature_toggles.mesh) ==
+					std::tie(other.stage, other.features.mesh, other.feature_toggles.mesh)
+				);
+			case geometries::point_cloud:
+				return (
+					std::tie(this->stage, this->features.point_cloud, this->feature_toggles.point_cloud) ==
+					std::tie(other.stage, other.features.point_cloud, other.feature_toggles.point_cloud)
+				);
+			}
+			std::unreachable();
+		}
+
+		return false;
+	}
+
+
+	struct feature_ignorant_less
+	{
+		bool operator()(const metadata_type& a, const metadata_type& b) const
+		{
+			return (
+				std::tie(a.geometry, a.stage) <
+				std::tie(a.geometry, b.stage)
+			);
+		}
+	};
+
+	struct feature_count_less
+	{
+		bool operator()(const metadata_type& a, const metadata_type& b) const
+		{
+			if (a.geometry == b.geometry)
+			{
+				int feature_count{}, feature_toggle_count{};
+				int other_feature_count{}, other_feature_toggle_count{};
+
+				constexpr auto count_features = []<typename T>(const T features)
+				{
+					using int_type = std::underlying_type_t<T>;
+					using uint_type = std::make_unsigned_t<int_type>;
+					return std::popcount(static_cast<uint_type>(static_cast<int_type>(features)));
+				};
+
+				switch (a.geometry)
+				{
+				case geometries::mesh:
+					for (auto& [ count, features ] : {
+						std::tie(feature_count, a.features.mesh),
+						std::tie(feature_toggle_count, a.feature_toggles.mesh),
+						std::tie(other_feature_count, b.features.mesh),
+						std::tie(other_feature_toggle_count, b.feature_toggles.mesh)
+					}) {
+						count = count_features(features);
+					}
+				case geometries::point_cloud:
+					for (auto& [ count, features ] : {
+						std::tie(feature_count, a.features.point_cloud),
+						std::tie(feature_toggle_count, a.feature_toggles.point_cloud),
+						std::tie(other_feature_count, b.features.point_cloud),
+						std::tie(other_feature_toggle_count, b.feature_toggles.point_cloud)
+					}) {
+						count = count_features(features);
+					}
+				default:
+					std::unreachable();
+				}
+				return (
+					std::tie(a.stage, feature_count, feature_toggle_count) <
+					std::tie(b.stage, other_feature_count, other_feature_toggle_count)
+				);
+			}
+			else
+			{
+				return a.geometry < b.geometry;
+			}
+		}
+	};
+};
+
+}

include/shader_program/uniforms/mesh_uniforms.hpp

@@ -2,14 +2,15 @@
 
 #include "opengl/shader_program_variable.hpp"
 #include <array>
+#include "util/enum_bitfield_operators.hpp"
 
 namespace shader_program::uniforms::mesh
 {
 
-enum class flags : int
+enum class flags : unsigned
 {
 	none = 0,
-	mvp = 1 << 0,
+	mvp_matrix = 1 << 0,
 	model_matrix = 1 << 1,
 	point_size = 1 << 2,
 	color = 1 << 3,
@@ -21,27 +22,25 @@ enum class flags : int
 	ambient_filter = 1 << 9,
 	diffuse_filter = 1 << 10,
 	specular_filter = 1 << 11,
-	shininess = 1 << 12,
+	shininess = 1 << 12
-	alpha = 1 << 13
 };
 
-constexpr inline auto mvp = zgl::shader_program_variable({ GL_FLOAT_MAT4, 0 }, "mvp_matrix");
+constexpr inline auto mvp_matrix = zgl::shader_program_variable({ GL_FLOAT_MAT4, 0 }, "mvp_matrix");
 constexpr inline auto model_matrix = zgl::shader_program_variable({ GL_FLOAT_MAT4, 1 }, "model_matrix");
 constexpr inline auto point_size = zgl::shader_program_variable({ GL_FLOAT, 2 }, "point_size");
-constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC4, 3 }, "color");
 constexpr inline auto tex = zgl::shader_program_variable({ GL_SAMPLER_2D, 3 }, "tex");
-constexpr inline auto view_pos = zgl::shader_program_variable({ GL_FLOAT_VEC3, 4 }, "view_pos");
+constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC4, 4 }, "color");
-constexpr inline auto point_light_direction = zgl::shader_program_variable({ GL_FLOAT_VEC3, 5 }, "point_light_direction");
+constexpr inline auto view_pos = zgl::shader_program_variable({ GL_FLOAT_VEC3, 5 }, "view_pos");
-constexpr inline auto point_light_color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 6 }, "point_light_color");
+constexpr inline auto point_light_direction = zgl::shader_program_variable({ GL_FLOAT_VEC3, 6 }, "point_light_direction");
-constexpr inline auto ambient_light_color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 7 }, "ambient_light_color");
+constexpr inline auto point_light_color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 7 }, "point_light_color");
-constexpr inline auto ambient_filter = zgl::shader_program_variable({ GL_FLOAT_VEC3, 8 }, "ambient_filter");
+constexpr inline auto ambient_light_color = zgl::shader_program_variable({ GL_FLOAT_VEC3, 8 }, "ambient_light_color");
-constexpr inline auto diffuse_filter = zgl::shader_program_variable({ GL_FLOAT_VEC3, 9 }, "diffuse_filter");
+constexpr inline auto ambient_filter = zgl::shader_program_variable({ GL_FLOAT_VEC3, 9 }, "ambient_filter");
-constexpr inline auto specular_filter = zgl::shader_program_variable({ GL_FLOAT_VEC3, 10 }, "specular_filter");
+constexpr inline auto diffuse_filter = zgl::shader_program_variable({ GL_FLOAT_VEC3, 10 }, "diffuse_filter");
-constexpr inline auto shininess = zgl::shader_program_variable({ GL_FLOAT, 11 }, "shininess");
+constexpr inline auto specular_filter = zgl::shader_program_variable({ GL_FLOAT_VEC3, 11 }, "specular_filter");
-constexpr inline auto alpha = zgl::shader_program_variable({ GL_FLOAT, 12 }, "alpha");
+constexpr inline auto shininess = zgl::shader_program_variable({ GL_FLOAT, 12 }, "shininess");
 
 constexpr inline auto all = std::array{
-	mvp,
+	mvp_matrix,
 	model_matrix,
 	point_size,
 	color,
@@ -53,65 +52,24 @@ constexpr inline auto all = std::array{
 	ambient_filter,
 	diffuse_filter,
 	specular_filter,
-	shininess,
+	shininess
-	alpha
+};
+
+constexpr inline auto names = std::array{
+	"mvp_matrix",
+	"model_matrix",
+	"point_size",
+	"color",
+	"tex",
+	"view_pos",
+	"point_light_direction",
+	"point_light_color",
+	"ambient_light_color",
+	"ambient_filter",
+	"diffuse_filter",
+	"specular_filter",
+	"shininess"
 };
 }
 
-[[nodiscard]] constexpr shader_program::uniforms::mesh::flags operator|(
+DEFINE_ENUM_BITFIELD_OPERATORS(shader_program::uniforms::mesh::flags)
-	const shader_program::uniforms::mesh::flags& a, const shader_program::uniforms::mesh::flags& b
-) {
-	return static_cast<shader_program::uniforms::mesh::flags>(static_cast<int>(a) | static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::uniforms::mesh::flags operator&(
-	const shader_program::uniforms::mesh::flags& a, const shader_program::uniforms::mesh::flags& b
-) {
-	return static_cast<shader_program::uniforms::mesh::flags>(static_cast<int>(a) & static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::uniforms::mesh::flags operator^(
-	const shader_program::uniforms::mesh::flags& a, const shader_program::uniforms::mesh::flags& b
-) {
-	return static_cast<shader_program::uniforms::mesh::flags>(static_cast<int>(a) ^ static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::uniforms::mesh::flags operator~(const shader_program::uniforms::mesh::flags& a) {
-	return static_cast<shader_program::uniforms::mesh::flags>(~static_cast<int>(a));
-}
-
-constexpr shader_program::uniforms::mesh::flags& operator|=(shader_program::uniforms::mesh::flags& a, const shader_program::uniforms::mesh::flags& b) {
-	return a = a | b;
-}
-
-constexpr shader_program::uniforms::mesh::flags& operator&=(shader_program::uniforms::mesh::flags& a, const shader_program::uniforms::mesh::flags& b) {
-	return a = a & b;
-}
-
-constexpr shader_program::uniforms::mesh::flags& operator^=(shader_program::uniforms::mesh::flags& a, const shader_program::uniforms::mesh::flags& b) {
-	return a = a ^ b;
-}
-
-[[nodiscard]] constexpr bool operator<(
-	shader_program::uniforms::mesh::flags lhs, shader_program::uniforms::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) < static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator<=(
-	shader_program::uniforms::mesh::flags lhs, shader_program::uniforms::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) <= static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>(
-	shader_program::uniforms::mesh::flags lhs, shader_program::uniforms::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) > static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>=(
-	shader_program::uniforms::mesh::flags lhs, shader_program::uniforms::mesh::flags rhs
-) {
-	return static_cast<int>(lhs) >= static_cast<int>(rhs);
-}

include/shader_program/uniforms/point_cloud_uniforms.hpp

@@ -6,92 +6,46 @@
 namespace shader_program::uniforms::point_cloud
 {
 
-enum class flags : int
+enum class flags : unsigned
 {
 	none = 0,
-	mvp = 1 << 0,
+	mvp_matrix = 1 << 0,
 	point_size = 1 << 1,
 	color = 1 << 2,
-	model = 1 << 3,
+	model_matrix = 1 << 3,
 	camera_position = 1 << 4,
 	rainbow_offset_y = 1 << 5,
-	rainbow_scale_y = 1 << 6,
+	rainbow_scale_y = 1 << 6
 };
 
-constexpr inline auto mvp = zgl::shader_program_variable({ GL_FLOAT_MAT4, 0 }, "mvp");
+constexpr inline auto mvp_matrix = zgl::shader_program_variable({ GL_FLOAT_MAT4, 0 }, "mvp_matrix");
-constexpr inline auto point_size = zgl::shader_program_variable({ GL_FLOAT, 2 }, "point_size");
+constexpr inline auto point_size = zgl::shader_program_variable({ GL_FLOAT, 1 }, "point_size");
-constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC4, 3 }, "color");
+constexpr inline auto color = zgl::shader_program_variable({ GL_FLOAT_VEC4, 2 }, "color");
-constexpr inline auto model = zgl::shader_program_variable({ GL_FLOAT_MAT4, 4 }, "model");
+constexpr inline auto model_matrix = zgl::shader_program_variable({ GL_FLOAT_MAT4, 3 }, "model_matrix");
-constexpr inline auto camera_position = zgl::shader_program_variable({ GL_FLOAT_VEC3, 5 }, "camera_position");
+constexpr inline auto camera_position = zgl::shader_program_variable({ GL_FLOAT_VEC3, 4 }, "camera_position");
-constexpr inline auto rainbow_offset_y = zgl::shader_program_variable({ GL_FLOAT, 6 }, "rainbow_offset_y");
+constexpr inline auto rainbow_offset_y = zgl::shader_program_variable({ GL_FLOAT, 5 }, "rainbow_offset_y");
-constexpr inline auto rainbow_scale_y = zgl::shader_program_variable({ GL_FLOAT, 7 }, "rainbow_scale_y");
+constexpr inline auto rainbow_scale_y = zgl::shader_program_variable({ GL_FLOAT, 6 }, "rainbow_scale_y");
 
 constexpr inline auto all = std::array{
-	mvp,
+	mvp_matrix,
 	point_size,
 	color,
-	model,
+	model_matrix,
 	camera_position,
 	rainbow_offset_y,
 	rainbow_scale_y
 };
 
+constexpr inline auto names = std::array{
+	"mvp_matrix",
+	"point_size",
+	"color",
+	"model_matrix",
+	"camera_position",
+	"rainbow_offset_y",
+	"rainbow_scale_y"
+};
+
 }
 
-[[nodiscard]] constexpr shader_program::uniforms::point_cloud::flags operator|(
+DEFINE_ENUM_BITFIELD_OPERATORS(shader_program::uniforms::point_cloud::flags)
-	const shader_program::uniforms::point_cloud::flags& a, const shader_program::uniforms::point_cloud::flags& b
-) {
-	return static_cast<shader_program::uniforms::point_cloud::flags>(static_cast<int>(a) | static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::uniforms::point_cloud::flags operator&(
-	const shader_program::uniforms::point_cloud::flags& a, const shader_program::uniforms::point_cloud::flags& b
-) {
-	return static_cast<shader_program::uniforms::point_cloud::flags>(static_cast<int>(a) & static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::uniforms::point_cloud::flags operator^(
-	const shader_program::uniforms::point_cloud::flags& a, const shader_program::uniforms::point_cloud::flags& b
-) {
-	return static_cast<shader_program::uniforms::point_cloud::flags>(static_cast<int>(a) ^ static_cast<int>(b));
-}
-
-[[nodiscard]] constexpr shader_program::uniforms::point_cloud::flags operator~(const shader_program::uniforms::point_cloud::flags& a) {
-	return static_cast<shader_program::uniforms::point_cloud::flags>(~static_cast<int>(a));
-}
-
-constexpr shader_program::uniforms::point_cloud::flags& operator|=(shader_program::uniforms::point_cloud::flags& a, const shader_program::uniforms::point_cloud::flags& b) {
-	return a = a | b;
-}
-
-constexpr shader_program::uniforms::point_cloud::flags& operator&=(shader_program::uniforms::point_cloud::flags& a, const shader_program::uniforms::point_cloud::flags& b) {
-	return a = a & b;
-}
-
-constexpr shader_program::uniforms::point_cloud::flags& operator^=(shader_program::uniforms::point_cloud::flags& a, const shader_program::uniforms::point_cloud::flags& b) {
-	return a = a ^ b;
-}
-
-[[nodiscard]] constexpr bool operator<(
-	shader_program::uniforms::point_cloud::flags lhs, shader_program::uniforms::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) < static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator<=(
-	shader_program::uniforms::point_cloud::flags lhs, shader_program::uniforms::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) <= static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>(
-	shader_program::uniforms::point_cloud::flags lhs, shader_program::uniforms::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) > static_cast<int>(rhs);
-}
-
-[[nodiscard]] constexpr bool operator>=(
-	shader_program::uniforms::point_cloud::flags lhs, shader_program::uniforms::point_cloud::flags rhs
-) {
-	return static_cast<int>(lhs) >= static_cast<int>(rhs);
-}

include/util/enum_bitfield_operators.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-#define DEFINE_ENUM_FLAG_OPERATORS(ENUM_TYPE)					\
+#define DEFINE_ENUM_BITFIELD_OPERATORS(ENUM_TYPE)					\
 [[nodiscard]] constexpr ENUM_TYPE operator|(					\
 	const ENUM_TYPE lhs, const ENUM_TYPE rhs					\
 ) {																\
@@ -35,6 +35,24 @@
 	);															\
 }																\
 																\
+constexpr ENUM_TYPE operator<<(									\
+	ENUM_TYPE& lhs,												\
+	int shift													\
+) {																\
+	return static_cast<ENUM_TYPE>(								\
+		static_cast<std::underlying_type_t<ENUM_TYPE>>(lhs) << shift	\
+	);															\
+}																\
+																\
+constexpr ENUM_TYPE operator<<(									\
+	ENUM_TYPE& lhs,												\
+	int shift													\
+) {																\
+	return static_cast<ENUM_TYPE>(								\
+		static_cast<std::underlying_type_t<ENUM_TYPE>>(lhs) << shift	\
+	);															\
+}																\
+																\
 constexpr ENUM_TYPE& operator|=(								\
 	ENUM_TYPE& lhs,												\
 	const ENUM_TYPE rhs											\
@@ -54,4 +72,18 @@ constexpr ENUM_TYPE& operator^=(								\
 	const ENUM_TYPE rhs											\
 ) {																\
 	return lhs = lhs ^ rhs;										\
+}																\
+																\
+constexpr ENUM_TYPE& operator<<=(								\
+	ENUM_TYPE& lhs,												\
+	const int shift												\
+) {																\
+	return lhs = lhs << shift;									\
+}																\
+																\
+constexpr ENUM_TYPE& operator>>=(								\
+	ENUM_TYPE& lhs,												\
+	const int shift												\
+) {																\
+	return lhs = lhs >> shift;									\
 }

shaders/fragment_mesh_face.glsl

@@ -0,0 +1,59 @@
+#pragma STAGE: FRAGMENT
+#pragma GEOMETRY: MESH
+#pragma FEATURES: FACE LINE V_L V_RGB V_A LIGHTING TEXTURE U_RGBA
+#pragma FEATURE_TOGGLES: LIGHTING TEXTURE
+
+
+//------------[ Uniforms ]------------//
+#ifdef TEXTURE
+layout (location = 3) uniform sampler2D tex;
+#endif
+#ifdef LIGHTING
+layout (location = 5) uniform vec3 view_pos;
+layout (location = 6) uniform vec3 point_light_direction;
+layout (location = 7) uniform vec3 point_light_color;
+layout (location = 8) uniform vec3 ambient_light_color;
+layout (location = 9) uniform vec3 ambient_filter;
+layout (location = 10) uniform vec3 diffuse_filter;
+layout (location = 11) uniform vec3 specular_filter;
+layout (location = 12) uniform float shininess;
+#endif
+
+
+//------------[ Inputs ]------------//
+layout (location = 0) in vec4 frag_color;
+#ifdef LIGHTING
+layout (location = 1) in vec3 frag_position;
+layout (location = 2) in vec3 frag_normal;
+#endif
+#ifdef TEXTURE
+layout (location = 2) in vec2 frag_tex_coord;
+#endif
+
+
+//------------[ Outputs ]------------//
+layout (location = 0) out vec4 pixel_color;
+
+
+void main()
+{
+    pixel_color = frag_color;
+
+#ifdef TEXTURE
+    pixel_color *= texture(tex, frag_tex_coord);
+#endif
+
+#ifdef LIGHTING
+    vec3 ambient = pixel_color.rgb * ambient_filter * ambient_light_color;
+
+    float point_light_alignment = max(dot(frag_normal, point_light_direction), 0.0);
+    vec3 diffuse = pixel_color.rgb * diffuse_filter * point_light_color * point_light_alignment;
+
+    vec3 reflection_dir = reflect(-point_light_direction, frag_normal);
+    vec3 view_dir = normalize(frag_position - view_pos);
+    float specular_strength = pow(max(dot(view_dir, reflection_dir), 0.0), shininess);
+    vec3 specular = specular_filter * point_light_color * specular_strength;
+
+    pixel_color.rgb *= ambient + diffuse + specular;
+#endif
+}

shaders/fragment_mesh_point.glsl

@@ -0,0 +1,18 @@
+#pragma STAGE: FRAGMENT
+#pragma GEOMETRY: MESH
+#pragma FEATURES: POINT V_L V_RGB V_A LIGHTING U_RGBA
+#pragma FEATURE_TOGGLES:
+
+
+//------------[ Inputs ]------------//
+layout (location = 0) in vec4 frag_color;
+
+
+//------------[ Outputs ]------------//
+layout (location = 0) out vec4 pixel_color;
+
+
+void main()
+{
+    pixel_color = frag_color;
+}

shaders/fragment_point_cloud.glsl

@@ -0,0 +1,18 @@
+#pragma STAGE: FRAGMENT
+#pragma GEOMETRY: POINT_CLOUD
+#pragma FEATURES: SQUARE V_L V_RGB V_A LIGHTING U_RGBA RAINBOW
+#pragma FEATURE_TOGGLES:
+
+
+//------------[ Inputs ]------------//
+layout (location = 0) in vec4 frag_color;
+
+
+//------------[ Outputs ]------------//
+layout (location = 0) out vec4 pixel_color;
+
+
+void main()
+{
+    pixel_color = frag_color;
+}

shaders/mesh/fragment_face.glsl

@@ -1,64 +0,0 @@
-#ifdef TEXTURE
-#ifdef U_COLOR
-#error Texture and color attribute are mutually exclusive.
-#endif
-#endif
-
-out vec4 pixel_color;
-
-#ifdef TEXTURE
-layout (location = 3) uniform sampler2D tex;
-layout (location = 2) in vec2 frag_tex_coord;
-#endif
-
-#ifdef U_COLOR
-layout (location = 3) uniform vec4 color;
-#endif
-
-#ifdef LIGHTING
-layout (location = 4) uniform vec3 view_pos;
-layout (location = 5) uniform vec3 point_light_direction;
-layout (location = 6) uniform vec3 point_light_color;
-layout (location = 7) uniform vec3 ambient_light_color;
-layout (location = 8) uniform vec3 ambient_filter;
-layout (location = 9) uniform vec3 diffuse_filter;
-layout (location = 10) uniform vec3 specular_filter;
-layout (location = 11) uniform float shininess;
-layout (location = 0) in vec3 frag_position;
-layout (location = 1) in vec3 frag_normal;
-#endif
-
-#ifdef U_ALPHA
-layout (location = 12) uniform float alpha;
-#endif
-
-void main() {
-
-    pixel_color = vec4(1);
-
-#ifdef TEXTURE
-    pixel_color *= texture(tex, frag_tex_coord);
-#endif
-
-#ifdef U_COLOR
-    pixel_color *= color;
-#endif
-
-#ifdef U_ALPHA
-    pixel_color.w *= alpha;
-#endif
-
-#ifdef LIGHTING
-    vec3 ambient = pixel_color.rgb * ambient_filter * ambient_light_color;
-
-    float point_light_alignment = max(dot(frag_normal, point_light_direction), 0.0);
-    vec3 diffuse = pixel_color.rgb * diffuse_filter * point_light_color * point_light_alignment;
-
-    vec3 reflection_dir = reflect(-point_light_direction, frag_normal);
-    vec3 view_dir = normalize(frag_position - view_pos);
-    float specular_strength = pow(max(dot(view_dir, reflection_dir), 0.0), shininess);
-    vec3 specular = specular_filter * point_light_color * specular_strength;
-
-    pixel_color.rgb *= ambient + diffuse + specular;
-#endif
-}

shaders/mesh/fragment_point.glsl

@@ -1,7 +0,0 @@
-layout (location = 0) in vec4 frag_color;
-
-out vec4 pixel_color;
-
-void main() {
-    pixel_color = frag_color;
-}

shaders/mesh/vertex_face.glsl

@@ -1,27 +0,0 @@
-layout (location = 0) uniform mat4 mvp_matrix;
-layout (location = 0) in vec3 vertex_position;
-
-#ifdef LIGHTING
-layout (location = 1) uniform mat4 model_matrix;
-layout (location = 1) in vec3 vertex_normal;
-layout (location = 0) out vec3 frag_position;
-layout (location = 1) out vec3 frag_normal;
-#endif
-
-#ifdef TEXTURE
-layout (location = 2) in vec2 vertex_tex_coord;
-layout (location = 2) out vec2 frag_tex_coord;
-#endif
-
-void main() {
-    gl_Position = mvp_matrix * vec4(vertex_position, 1.0);
-
-#ifdef LIGHTING
-    frag_position = (model_matrix * vec4(vertex_position, 1.0)).xyz;
-    frag_normal = normalize(mat3(model_matrix) * vertex_normal);
-#endif
-
-#ifdef TEXTURE
-    frag_tex_coord = vertex_tex_coord;
-#endif
-}

shaders/mesh/vertex_point.glsl

@@ -1,59 +0,0 @@
-layout (location = 0) uniform mat4 mvp_matrix;
-layout (location = 2) uniform float point_size;
-layout (location = 0) in vec3 vertex_position;
-layout (location = 0) out vec4 frag_color;
-
-#ifdef TEXTURE
-layout (location = 3) uniform sampler2D tex;
-layout (location = 2) in vec2 vertex_tex_coord;
-#endif
-
-#ifdef LIGHTING
-layout (location = 1) uniform mat4 model_matrix;
-layout (location = 4) uniform vec3 view_pos;
-layout (location = 5) uniform vec3 point_light_direction;
-layout (location = 6) uniform vec3 point_light_color;
-layout (location = 7) uniform vec3 ambient_light_color;
-layout (location = 8) uniform vec3 ambient_filter;
-layout (location = 9) uniform vec3 diffuse_filter;
-layout (location = 10) uniform vec3 specular_filter;
-layout (location = 11) uniform float shininess;
-layout (location = 1) in vec3 vertex_normal;
-#endif
-
-#ifdef U_ALPHA
-layout (location = 12) uniform float alpha;
-#endif
-
-void main() {
-
-    gl_Position = mvp_matrix * vec4(vertex_position, 1.0);
-    gl_PointSize = point_size / gl_Position.w;
-
-    frag_color = vec4(1);
-
-#ifdef TEXTURE
-    frag_color *= texture(tex, vertex_tex_coord);
-#endif
-
-#ifdef U_ALPHA
-    frag_color.w *= alpha;
-#endif
-
-#ifdef LIGHTING
-    vec3 position = (model_matrix * vec4(vertex_position, 1.0)).xyz;
-    vec3 normal = normalize(mat3(model_matrix) * vertex_normal);
- 
-    vec3 ambient = frag_color.rgb * ambient_filter * ambient_light_color;
-
-    float point_light_alignment = max(dot(normal, point_light_direction), 0.0);
-    vec3 diffuse = frag_color.rgb * diffuse_filter * point_light_color * point_light_alignment;
-
-    vec3 reflection_dir = reflect(-point_light_direction, normal);
-    vec3 view_dir = normalize(position - view_pos);
-    float specular_strength = pow(max(dot(view_dir, reflection_dir), 0.0), shininess);
-    vec3 specular = specular_filter * point_light_color * specular_strength;
-
-    frag_color.rgb *= ambient + diffuse + specular;
-#endif
-}

shaders/point_cloud/fragment.glsl

@@ -1,7 +0,0 @@
-layout (location = 0) in vec4 frag_color;
-
-out vec4 pixel_color;
-
-void main() {
-    pixel_color = frag_color;
-}

shaders/point_cloud/vertex.glsl

@@ -1,51 +0,0 @@
-layout (location = 0) in vec3 vertex_position;
-layout (location = 0) uniform mat4 mvp_matrix;
-layout (location = 2) uniform float point_size;
-layout (location = 0) out vec4 frag_color;
-
-#ifdef LIGHTING
-layout (location = 4) uniform mat4 model_matrix;
-layout (location = 5) uniform vec3 camera_position;
-layout (location = 1) in vec3 vertex_normal;
-#endif
-
-#ifdef RAINBOW
-layout (location = 6) uniform float rainbow_offset_y;
-layout (location = 7) uniform float rainbow_scale_y;
-
-// taken from 'https://github.com/hughsk/glsl-hsv2rgb'
-vec3 hue2rgb(float hue)
-{
-    vec4 offsets = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
-    vec3 p = abs(fract(vec3(hue) + offsets.xyz) * 6.0 - offsets.www);
-    return clamp(p - offsets.xxx, 0.0, 1.0);
-}
-#endif
-
-#ifdef REFLECTANCE
-layout (location = 2) in float vertex_reflectance;
-#endif
-
-void main()
-{
-    gl_Position = mvp_matrix * vec4(vertex_position, 1.0);
-    gl_PointSize = point_size / gl_Position.w;
-
-    frag_color = vec4(1);
-
-#ifdef LIGHTING
-    vec3 world_position = vec3(model_matrix * vec4(vertex_position, 1.0));
-    vec3 world_normal = normalize(mat3(model_matrix) * vertex_normal);
-    vec3 view_direction = normalize(camera_position - world_position);
-    frag_color.rgb *= max(dot(world_normal, view_direction), 0.0);
-#endif
-
-#ifdef RAINBOW
-    float rainbow_pos = rainbow_scale_y * (vertex_position.y + rainbow_offset_y);
-    frag_color.rgb *= hue2rgb(mod(rainbow_pos, 1.0f));
-#endif
-
-#ifdef REFLECTANCE
-	frag_color.rgb *= vertex_reflectance;
-#endif
-}

shaders/vertex_mesh_face.glsl

@@ -0,0 +1,84 @@
+#pragma STAGE: VERTEX
+#pragma GEOMETRY: MESH
+#pragma FEATURES: FACE LINE V_L V_RGB V_A LIGHTING TEXTURE U_RGBA
+#pragma FEATURE_TOGGLES: V_L V_RGB V_A LIGHTING TEXTURE U_RGBA
+
+
+#ifdef V_L
+#ifdef V_RGB
+#error Vertex luminance and vertex RGB are mutually exclusive
+#endif
+#endif
+
+
+//------------[ Uniforms ]------------//
+layout (location = 0) uniform mat4 mvp_matrix;
+#ifdef LIGHTING
+layout (location = 1) uniform mat4 model_matrix;
+#endif
+#ifdef U_RGBA
+layout (location = 4) uniform vec4 color;
+#endif
+
+
+//------------[ Inputs ]------------//
+layout (location = 0) in vec3 model_vertex_position;
+#ifdef LIGHTING
+layout (location = 1) in vec3 model_vertex_normal;
+#endif
+#ifdef V_L
+layout (location = 2) in float model_vertex_l;
+#endif
+#ifdef V_RGB
+layout (location = 2) in vec3 model_vertex_rgb;
+#endif
+#ifdef V_A
+layout (location = 3) in float model_vertex_a;
+#endif
+#ifdef TEXTURE
+layout (location = 4) in vec2 model_vertex_tex_coord;
+#endif
+
+
+//------------[ Outputs ]------------//
+layout (location = 0) out vec4 clip_vertex_color;
+#ifdef LIGHTING
+layout (location = 1) out vec3 clip_vertex_position;
+layout (location = 2) out vec3 clip_vertex_normal;
+#endif
+#ifdef TEXTURE
+layout (location = 3) out vec2 clip_vertex_tex_coord;
+#endif
+
+
+void main()
+{
+    gl_Position = mvp_matrix * vec4(model_vertex_position, 1.0);
+
+    clip_vertex_color = vec4(1);
+
+#ifdef V_L
+    clip_vertex_color.rgb *= model_vertex_l;
+#endif
+
+#ifdef V_RGB
+    clip_vertex_color.rgb *= model_vertex_rgb;
+#endif
+
+#ifdef V_A
+    clip_vertex_color.a *= model_vertex_a;
+#endif
+
+#ifdef U_RGBA
+    clip_vertex_color *= color;
+#endif
+
+#ifdef LIGHTING
+    clip_vertex_position = (model_matrix * vec4(model_vertex_position, 1.0)).xyz;
+    clip_vertex_normal = normalize(mat3(model_matrix) * model_vertex_normal);
+#endif
+
+#ifdef TEXTURE
+    clip_vertex_tex_coord = model_vertex_tex_coord;
+#endif
+}

shaders/vertex_mesh_point.glsl

@@ -0,0 +1,94 @@
+#pragma STAGE: VERTEX
+#pragma GEOMETRY: MESH
+#pragma FEATURES: POINT V_L V_RGB V_A LIGHTING U_RGBA
+#pragma FEATURE_TOGGLES: V_L V_RGB V_A LIGHTING U_RGBA
+
+
+#ifdef V_L
+#ifdef V_RGB
+#error Vertex luminance and vertex RGB are mutually exclusive
+#endif
+#endif
+
+
+//------------[ Uniforms ]------------//
+layout (location = 0) uniform mat4 mvp_matrix;
+#ifdef LIGHTING
+layout (location = 1) uniform mat4 model_matrix;
+#endif
+layout (location = 2) uniform float point_size;
+#ifdef U_RGBA
+layout (location = 4) uniform vec4 color;
+#endif
+#ifdef LIGHTING
+layout (location = 5) uniform vec3 view_pos;
+layout (location = 6) uniform vec3 point_light_direction;
+layout (location = 7) uniform vec3 point_light_color;
+layout (location = 8) uniform vec3 ambient_light_color;
+layout (location = 9) uniform vec3 ambient_filter;
+layout (location = 10) uniform vec3 diffuse_filter;
+layout (location = 11) uniform vec3 specular_filter;
+layout (location = 12) uniform float shininess;
+#endif
+
+
+//------------[ Inputs ]------------//
+layout (location = 0) in vec3 model_vertex_position;
+#ifdef LIGHTING
+layout (location = 1) in vec3 model_vertex_normal;
+#endif
+#ifdef V_L
+layout (location = 2) in float model_vertex_l;
+#endif
+#ifdef V_RGB
+layout (location = 2) in vec3 model_vertex_rgb;
+#endif
+#ifdef V_A
+layout (location = 3) in float model_vertex_a;
+#endif
+
+
+//------------[ Outputs ]------------//
+layout (location = 0) out vec4 clip_vertex_color;
+
+
+void main()
+{
+    gl_Position = mvp_matrix * vec4(model_vertex_position, 1.0);
+    gl_PointSize = point_size / gl_Position.w;
+
+    clip_vertex_color = vec4(1);
+
+#ifdef V_L
+    clip_vertex_color.rgb *= model_vertex_l;
+#endif
+
+#ifdef V_RGB
+    clip_vertex_color.rgb *= model_vertex_rgb;
+#endif
+
+#ifdef V_A
+    clip_vertex_color.a *= model_vertex_a;
+#endif
+
+#ifdef U_RGBA
+    clip_vertex_color *= color;
+#endif
+
+#ifdef LIGHTING
+    vec3 position = (model_matrix * vec4(model_vertex_position, 1.0)).xyz;
+    vec3 normal = normalize(mat3(model_matrix) * model_vertex_normal);
+ 
+    vec3 ambient = clip_vertex_color.rgb * ambient_filter * ambient_light_color;
+
+    float point_light_alignment = max(dot(normal, point_light_direction), 0.0);
+    vec3 diffuse = clip_vertex_color.rgb * diffuse_filter * point_light_color * point_light_alignment;
+
+    vec3 reflection_dir = reflect(-point_light_direction, normal);
+    vec3 view_dir = normalize(position - view_pos);
+    float specular_strength = pow(max(dot(view_dir, reflection_dir), 0.0), shininess);
+    vec3 specular = specular_filter * point_light_color * specular_strength;
+
+    clip_vertex_color.rgb *= ambient + diffuse + specular;
+#endif
+}

shaders/vertex_point_cloud.glsl

@@ -0,0 +1,95 @@
+#pragma STAGE: VERTEX
+#pragma GEOMETRY: POINT_CLOUD
+#pragma FEATURES: SQUARE V_L V_RGB V_A LIGHTING U_RGBA RAINBOW
+#pragma FEATURE_TOGGLES: V_L V_RGB V_A LIGHTING U_RGBA RAINBOW
+
+
+#ifdef V_L
+#ifdef V_RGB
+#error Vertex luminance and vertex RGB are mutually exclusive
+#endif
+#endif
+
+
+//------------[ Uniforms ]------------//
+layout (location = 0) uniform mat4 mvp_matrix;
+layout (location = 1) uniform float point_size;
+#ifdef U_RGBA
+layout (location = 2) uniform vec4 color;
+#endif
+#ifdef LIGHTING
+layout (location = 3) uniform mat4 model_matrix;
+layout (location = 4) uniform vec3 camera_position;
+#endif
+#ifdef RAINBOW
+layout (location = 5) uniform float rainbow_offset_y;
+layout (location = 6) uniform float rainbow_scale_y;
+#endif
+
+
+//------------[ Inputs ]------------//
+layout (location = 0) in vec3 model_vertex_position;
+#ifdef LIGHTING
+layout (location = 1) in vec3 model_vertex_normal;
+#endif
+#ifdef V_L
+layout (location = 2) in float model_vertex_l;
+#endif
+#ifdef V_RGB
+layout (location = 2) in vec3 model_vertex_rgb;
+#endif
+#ifdef V_A
+layout (location = 3) in float model_vertex_a;
+#endif
+
+
+//------------[ Outputs ]------------//
+layout (location = 0) out vec4 clip_vertex_color;
+
+
+#ifdef RAINBOW
+// taken from 'https://github.com/hughsk/glsl-hsv2rgb'
+vec3 hue2rgb(float hue)
+{
+    vec4 offsets = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
+    vec3 p = abs(fract(vec3(hue) + offsets.xyz) * 6.0 - offsets.www);
+    return clamp(p - offsets.xxx, 0.0, 1.0);
+}
+#endif
+
+
+void main()
+{
+    gl_Position = mvp_matrix * vec4(model_vertex_position, 1.0);
+    gl_PointSize = point_size / gl_Position.w;
+
+    clip_vertex_color = vec4(1);
+
+#ifdef V_L
+    clip_vertex_color.rgb *= model_vertex_l;
+#endif
+
+#ifdef V_RGB
+    clip_vertex_color.rgb *= model_vertex_rgb;
+#endif
+
+#ifdef V_A
+    clip_vertex_color.a *= model_vertex_a;
+#endif
+
+#ifdef U_RGBA
+    clip_vertex_color *= color;
+#endif
+
+#ifdef LIGHTING
+    vec3 world_position = vec3(model_matrix * vec4(model_vertex_position, 1.0));
+    vec3 world_normal = normalize(mat3(model_matrix) * model_vertex_normal);
+    vec3 view_direction = normalize(camera_position - world_position);
+    clip_vertex_color.rgb *= max(dot(world_normal, view_direction), 0.0);
+#endif
+
+#ifdef RAINBOW
+    float rainbow_pos = rainbow_scale_y * (model_vertex_position.y + rainbow_offset_y);
+    clip_vertex_color.rgb *= hue2rgb(mod(rainbow_pos, 1.0f));
+#endif
+}

source/assets/data_loaders/kitti_loader.cpp

@@ -52,7 +52,7 @@ std::error_code kitti_loader::load(
    dynamic_point_cloud_buffer& buffer,
    const file_dir_list& paths,
    prefetch_lookup& id_lookup,
-   dynamic_data_store& store,
+   dynamic_shader_source_store& store,
    bool
 ) {
 	namespace fs = std::filesystem;

source/assets/data_loaders/kitti_pose_loader.cpp

@@ -35,7 +35,7 @@ std::error_code kitti_pose_loader::load(
 	dynamic_pose_buffer& buffer,
 	const file_dir_list& paths,
 	prefetch_lookup& id_lookup,
-	dynamic_data_store& store,
+	dynamic_shader_source_store& store,
 	bool pedantic
 ) {
 	namespace fs = std::filesystem;

source/assets/data_loaders/obj_loader.cpp

@@ -222,7 +222,7 @@ std::error_code obj_loader::load(
 	dynamic_mesh_buffer& buffer,
 	const file_dir_list& paths,
 	prefetch_lookup& id_lookup,
-	dynamic_data_store& store,
+	dynamic_shader_source_store& store,
 	bool pedantic
 ) {
 	namespace fs = std::filesystem;
@@ -308,7 +308,7 @@ std::error_code obj_loader::parse_file(
 	std::set<indexed_vertex_type>& vertex_ids,
 	std::ifstream& in,
 	prefetch_lookup& id_lookup,
-	dynamic_data_store& store,
+	dynamic_shader_source_store& store,
 	bool pedantic
 ) {
 	using obj_loader_error::codes;

source/opengl/data_uploaders/shader_compiler.cpp

@@ -0,0 +1,413 @@
+#include "opengl/data_uploaders/shader_compiler.hpp"
+
+#include <numeric>
+#include <bits/ranges_algobase.h>
+#include "util/logger.hpp"
+
+void zgl::shader_program_compiler::tokenize_declarations(
+	std::string_view source_rest,
+	std::vector<std::string_view> tokens,
+	std::vector<std::size_t> declaration_token_counts,
+	std::span<std::size_t> declaration_type_indices
+) {
+	tokens.clear();
+	declaration_token_counts.clear();
+	std::ranges::fill(declaration_type_indices, static_cast<std::size_t>(metadata_declaration_type::invalid));
+
+	constexpr auto pragma_prefix = std::string_view("\n#pragma ");
+	constexpr auto title_separator = ':';
+	constexpr auto token_separator = ' ';
+
+	auto offset = std::string_view::size_type{};
+
+	auto keyword = pragma_prefix;
+
+	while ((offset = source_rest.find(keyword)) != std::string_view::npos)
+	{
+		const auto current_token_count = tokens.size();
+
+		auto line_end = source_rest.find('\n', offset);
+		if (line_end == std::string_view::npos)
+		{
+			line_end = source_rest.length();
+		}
+
+		auto declaration = source_rest.substr(offset, line_end - offset);
+
+		if ((offset = declaration.find(title_separator)) == std::string_view::npos)
+		{
+			continue;
+		}
+
+		const auto title = declaration.substr(0, offset);
+		if (const auto it = declaration_lookup.find(title); it != declaration_lookup.end())
+		{
+			const auto declaration_type = static_cast<std::size_t>(it->second);
+			declaration_type_indices[declaration_type] = declaration_token_counts.size();
+		}
+		else
+		{
+			continue;
+		}
+
+		declaration = declaration.substr(offset);
+
+		if (not declaration.empty() and declaration.front() == token_separator)
+		{
+			declaration = declaration.substr(sizeof(token_separator), declaration.length());
+		}
+
+		while ((offset = declaration.find(token_separator)) != std::string_view::npos)
+		{
+			tokens.emplace_back(declaration.substr(0, offset));
+			declaration = declaration.substr(offset + sizeof(token_separator));
+		}
+
+		if (not declaration.empty())
+		{
+			tokens.emplace_back(declaration);
+		}
+
+		declaration_token_counts.emplace_back(
+			tokens.size() - current_token_count
+		);
+		source_rest = source_rest.substr(line_end + sizeof('\n'));
+		keyword = pragma_prefix.substr(sizeof('\n'));
+	}
+}
+
+bool zgl::shader_program_compiler::parse_stage_declaration(
+	std::span<const std::string_view> tokens,
+	shader_program::metadata_type& metadata
+) {
+	if (tokens.size() != 1)
+	{
+		ztu::logger::warn("Invalid stage declaration: Expected exactly one token but got %.", tokens.size());
+		return false;
+	}
+
+	const auto token = tokens.front();
+
+	if (const auto it = stage_lookup.find(token); it != stage_lookup.end())
+	{
+		metadata.stage = it->second;
+	}
+	else
+	{
+		ztu::logger::warn("Invalid stage declaration: Unknown stage %.", token);
+		return false;
+	}
+
+	return true;
+}
+
+bool zgl::shader_program_compiler::parse_geometry_declaration(
+	std::span<const std::string_view> tokens,
+	shader_program::metadata_type& metadata
+) {
+	if (tokens.size() != 1)
+	{
+		ztu::logger::warn("Invalid geometry declaration: Expected exactly one token but got %.", tokens.size());
+		return false;
+	}
+
+	const auto token = tokens.front();
+
+	if (const auto it = geometry_lookup.find(token); it != geometry_lookup.end())
+	{
+		metadata.geometry = it->second;
+	}
+	else
+	{
+		ztu::logger::warn("Invalid geometry declaration: Unknown geometry %.", token);
+		return false;
+	}
+
+	return true;
+}
+
+template<typename T>
+void zgl::shader_program_compiler::parse_feature_tokens(
+	std::span<const std::string_view> tokens,
+	const ztu::string_lookup<T>& feature_lookup,
+	T& features
+) {
+	features = {};
+
+	for (const auto token : tokens)
+	{
+		if (const auto it = feature_lookup.find(token); it != feature_lookup.end())
+		{
+			features |= it->second;
+		}
+		else
+		{
+			ztu::logger::warn("Ignoring unknown feature token %.", token);
+		}
+	}
+}
+
+bool zgl::shader_program_compiler::parse_features_declaration(
+	std::span<const std::string_view> tokens,
+	shader_program::metadata_type& metadata
+) {
+	switch (metadata.geometry)
+	{
+	case shader_program::geometries::mesh:
+		parse_feature_tokens(tokens, mesh_feature_lookup, metadata.features.mesh);
+		break;
+	case shader_program::geometries::point_cloud:
+		parse_feature_tokens(tokens, point_cloud_feature_lookup, metadata.features.point_cloud);
+		break;
+	default:
+		ztu::logger::warn("Internal error: Unknown geometry index %.", static_cast<int>(metadata.geometry));
+		return false;
+	}
+	return true;
+}
+
+bool zgl::shader_program_compiler::parse_feature_toggles_declaration(
+	std::span<const std::string_view> tokens,
+	shader_program::metadata_type& metadata
+) {
+	switch (metadata.geometry)
+	{
+	case shader_program::geometries::mesh:
+		parse_feature_tokens(tokens, mesh_feature_lookup, metadata.feature_toggles.mesh);
+		break;
+	case shader_program::geometries::point_cloud:
+		parse_feature_tokens(tokens, point_cloud_feature_lookup, metadata.feature_toggles.point_cloud);
+		break;
+	default:
+		ztu::logger::warn("Internal error: Unknown geometry index %.", static_cast<int>(metadata.geometry));
+		return false;
+	}
+	return true;
+}
+
+std::optional<shader_program::metadata_type> zgl::shader_program_compiler::parse_metadata_from_tokens(
+	std::span<const std::string_view> tokens,
+	std::span<const std::size_t> declaration_token_counts,
+	std::span<const std::size_t> declaration_type_indices
+) {
+	using enum metadata_declaration_type;
+	using namespace std::string_view_literals;
+
+	shader_program::metadata_type data;
+
+	for (const auto [ type, name, parser ] : {
+		std::make_tuple(stage, "stage"sv, &parse_stage_declaration),
+		std::make_tuple(geometry, "geometry"sv, &parse_geometry_declaration),
+		std::make_tuple(features, "features"sv, &parse_features_declaration),
+		std::make_tuple(feature_toggles, "feature_toggles"sv, &parse_feature_toggles_declaration)
+	}) {
+		const auto index = declaration_type_indices[static_cast<std::size_t>(type)];
+
+		if (index == static_cast<std::size_t>(invalid))
+		{
+			ztu::logger::warn("Shader metadata error: Missing % declaration.", name);
+			return std::nullopt;
+		}
+
+		const auto token_offset = std::accumulate(
+			declaration_token_counts.begin(),
+			declaration_token_counts.begin() + index,
+			std::size_t{}
+		);
+		const auto token_count = declaration_token_counts[index];
+
+		if (not parser(tokens.subspan(token_offset, token_count), data))
+		{
+			return std::nullopt;
+		}
+	}
+
+	return data;
+}
+
+auto zgl::shader_program_compiler::find_compatible_shader_source(
+	shader_program::metadata_type& requirements
+) {
+
+	const auto lower_it = std::ranges::lower_bound(
+		shader_lookup,
+		requirements,
+		shader_program::metadata_type::feature_ignorant_less{},
+		&std::pair<shader_program::metadata_type, dynamic_shader_source_store::id_type>::first
+	);
+
+	if (lower_it == shader_lookup.end()) {
+		return std::nullopt;
+	}
+
+	const auto required_features = requirements.features.generic(requirements.geometry);
+
+	while (
+		lower_it->first.geometry == requirements.geometry and
+		lower_it->first.stage == requirements.stage
+	) {
+		const auto& data = lower_it->first;
+		const auto& [ features, feature_toggles ] = data.generic();
+
+		const auto missing_features = required_features & ~features;
+		const auto extra_features = ~required_features & features;
+		const auto untoggleable_extra_features = extra_features & ~feature_toggles;
+
+		if (missing_features == 0 and untoggleable_extra_features == 0)
+		{
+			const auto to_be_toggled = required_features & feature_toggles;
+			requirements.feature_toggles.from_generic(requirements.geometry, to_be_toggled);
+
+			return lower_it->second;
+		}
+	}
+
+	return std::nullopt;
+}
+
+template<typename T>
+void add_required_feature_defines(
+	T toggle_flags,
+	std::span<const std::string> defines,
+	std::vector<const char*>& shader_strings
+) {
+	auto index = std::size_t{};
+	while (toggle_flags != T{})
+	{
+		if ((toggle_flags & T{ 1 }) != T{})
+		{
+			shader_strings.push_back(defines[index].c_str());
+		}
+		toggle_flags >>= 1;
+		++index;
+	}
+}
+
+void zgl::shader_program_compiler::compile_shaders(
+	const dynamic_shader_source_store& shader_sources,
+	std::span<const shader_program::metadata_type> requirements_list,
+	std::vector<shader_handle>& shader_handles
+) {
+
+	static constexpr auto max_shader_strings = std::max(
+		mesh_feature_defines.size(),
+		point_cloud_feature_defines.size()
+	) + 1;
+
+	std::vector<const char*> shader_strings;
+	shader_strings.reserve(max_shader_strings);
+
+
+	for (auto requirements : requirements_list)
+	{
+		auto shader_id = GLuint{};
+
+		const auto source_id = find_compatible_shader_source(requirements);
+		if (not source_id)
+		{
+			continue;
+		}
+
+		const auto [ shader_source_it, source_found ] = shader_sources.find(*source_id);
+		if (not source_found)
+		{
+			ztu::logger::warn("Missing shader source with id %.", *source_id);
+			continue;
+		}
+
+		const auto& shader_source = *shader_source_it;
+
+		if (shader_source.source.empty() and requirements.stage == shader_program::stages::geometry)
+		{
+			continue;
+		}
+
+		shader_strings.clear();
+
+		switch (requirements.geometry) {
+			case shader_program::geometries::mesh:
+				add_required_feature_defines(requirements.feature_toggles.mesh, mesh_feature_defines, shader_strings);
+				break;
+			case shader_program::geometries::point_cloud:
+				add_required_feature_defines(requirements.feature_toggles.point_cloud, point_cloud_feature_defines, shader_strings);
+				break;
+			default:
+				std::unreachable();
+		}
+
+		shader_strings.push_back(shader_source.source.data());
+
+		shader_id = glCreateShader(static_cast<GLenum>(requirements.stage));
+
+		glShaderSource(shader_id, shader_strings.size(), shader_strings.data(), nullptr);
+		glCompileShader(shader_id);
+
+		GLint success;
+		glGetShaderiv(shader_id, GL_COMPILE_STATUS, &success);
+
+		if (not success)
+		{
+			GLint log_length{};
+			glGetShaderiv(shader_id, GL_INFO_LOG_LENGTH, &log_length);
+
+			auto log = std::string(log_length, ' ');
+			glGetShaderInfoLog(shader_id, log_length, nullptr, log.data());
+
+			ztu::logger::error("Error while compiling shader:\n%", log);
+
+			glDeleteShader(shader_id);
+			shader_id = GLuint{};
+		}
+
+		shader_handles.emplace_back(shader_id);
+	}
+}
+
+void zgl::shader_program_compiler::register_shader_sources(
+	const dynamic_shader_source_store& shader_sources
+) {
+	std::vector<std::string_view> tokens;
+	std::vector<std::size_t> declaration_token_counts;
+	std::array<std::size_t, 4> declaration_type_indices;
+
+	tokens.reserve(32);
+	declaration_token_counts.reserve(4);
+
+	for (const auto& [ id, shader_source ] : shader_sources)
+	{
+		tokenize_declarations(
+			shader_source,
+			tokens,
+			declaration_token_counts,
+			declaration_type_indices
+		);
+
+		const auto metadata = parse_metadata_from_tokens(
+			tokens,
+			declaration_token_counts,
+			declaration_type_indices
+		);
+
+		if (not metadata)
+		{
+			ztu::logger::warn("Ignoring shader % as it contains malformed metadata.", id);
+			continue;
+		}
+
+		// Sorted insert should be faster than std::sort and std::unique
+		// for small numbers of elements and high numbers of duplicates.
+		const auto it = std::ranges::upper_bound(
+			shader_lookup,
+			*metadata,
+			shader_program::metadata_type::feature_count_less{},
+			&std::pair<shader_program::metadata_type, dynamic_shader_source_store::id_type>::first
+		);
+
+		if (it != shader_lookup.end() and it->first == *metadata)
+		{
+			continue;
+		}
+
+		shader_lookup.emplace(it, *metadata, id);
+	}
+}