Big UberShader update

-Added GRAPHICS_MAX_LIGHTPERPASS macro
-Added glGetActiveUniform OpenGL function
-Added (Uber)ShaderLibrary
-Added (Uber)ShaderName parameter to models
-Changed uniform system
-Fixed Node copying
-Moved Material class to Graphics module
-Optimized lights
-Remade Shader class
-Renamed Node::Invalidate to Node::InvalidateNode
-Renamed ShaderProgram to Shader


Former-commit-id: 15f0cad52969e91a2442e7d750ba2dc412f3549d

include/Nazara/Graphics/ForwardRenderTechnique.hpp

@@ -8,13 +8,15 @@
 #define NAZARA_FORWARDRENDERTECHNIQUE_HPP
 
 #include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/ResourceListener.hpp>
 #include <Nazara/Graphics/AbstractRenderTechnique.hpp>
 #include <Nazara/Graphics/ForwardRenderQueue.hpp>
+#include <Nazara/Graphics/Light.hpp>
 #include <Nazara/Graphics/LightManager.hpp>
 #include <Nazara/Utility/IndexBuffer.hpp>
 #include <Nazara/Utility/VertexBuffer.hpp>
 
-class NAZARA_API NzForwardRenderTechnique : public NzAbstractRenderTechnique
+class NAZARA_API NzForwardRenderTechnique : public NzAbstractRenderTechnique, NzResourceListener
 {
 	public:
 		NzForwardRenderTechnique();
@@ -30,10 +32,23 @@ class NAZARA_API NzForwardRenderTechnique : public NzAbstractRenderTechnique
 		void SetMaxLightPassPerObject(unsigned int passCount);
 
 	private:
+		struct LightUniforms;
+
 		void DrawOpaqueModels(const NzScene* scene) const;
 		void DrawSprites(const NzScene* scene) const;
 		void DrawTransparentModels(const NzScene* scene) const;
+		const LightUniforms* GetLightUniforms(const NzShader* shader) const;
 
+		struct LightUniforms
+		{
+			NzLightUniforms uniforms;
+			bool exists;
+			int offset; // "Distance" entre Lights[0].type et Lights[1].type
+			/// Moins coûteux en mémoire que de stocker un NzLightUniforms par index de lumière,
+			/// à voir si ça fonctionne chez tout le monde
+		};
+
+		mutable std::unordered_map<const NzShader*, LightUniforms> m_lightUniforms;
 		mutable NzForwardRenderQueue m_renderQueue;
 		NzIndexBufferRef m_indexBuffer;
 		mutable NzLightManager m_directionalLights;