Refactor mesh handling to use templated vertex structures for improved type safety and flexibility

src/graphics/core/PostProcessing.hpp

@@ -2,14 +2,25 @@
 
 #include <vector>
 #include <memory>
+#include <glm/glm.hpp>
+#include "MeshData.hpp"
 
-class Mesh;
+template<typename VertexStructure> class Mesh;
 class Assets;
 class Framebuffer;
 class DrawContext;
 class ImageData;
 class PostEffect;
 
+struct PostProcessingVertex {
+    glm::vec2 position;
+
+    static constexpr VertexAttribute ATTRIBUTES[] {
+            {GL_FLOAT,false,2},
+            {0}
+    };
+};
+
 /// @brief Framebuffer with blitting with shaders.
 /// @attention Current implementation does not support multiple render passes 
 /// for multiple effects. Will be implemented in v0.21
@@ -18,7 +29,7 @@ class PostProcessing {
     std::unique_ptr<Framebuffer> fbo;
     std::unique_ptr<Framebuffer> fboSecond;
     /// @brief Fullscreen quad mesh as the post-processing canvas
-    std::unique_ptr<Mesh> quadMesh;
+    std::unique_ptr<Mesh<PostProcessingVertex>> quadMesh;
     std::vector<std::shared_ptr<PostEffect>> effectSlots;
 public:
     PostProcessing(size_t effectSlotsCount);