fixes

include/viewer/dynamic_shader_program_loading.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <filesystem>
+#include "asset_loader.hpp"
+#include "instance.hpp"
+
+namespace viewer::dynamic_shader_program_loading
+{
+
+void load_directory(
+	asset_loader& loader,
+	instance& z3d,
+	std::mutex& gl_resource_lock,
+	std::mutex& progress_lock,
+	std::string& progress_title,
+	float& progress_ratio,
+	const std::filesystem::path& path
+);
+
+std::size_t count_shader_files(
+	const std::filesystem::path& path
+);
+
+}