Added new RenderTechnique system

Former-commit-id: 6d65a4537232bc705333c696f2478d47f16e074a

include/Nazara/Graphics/AbstractRenderTechnique.hpp

@@ -9,7 +9,9 @@
 
 #include <Nazara/Prerequesites.hpp>
 #include <Nazara/Core/NonCopyable.hpp>
+#include <Nazara/Core/String.hpp>
 #include <Nazara/Graphics/AbstractRenderQueue.hpp>
+#include <Nazara/Graphics/Enums.hpp>
 
 class NzBackground;
 class NzScene;
@@ -21,11 +23,13 @@ class NAZARA_API NzAbstractRenderTechnique : NzNonCopyable
 		virtual ~NzAbstractRenderTechnique();
 
 		virtual void Clear(const NzScene* scene) = 0;
-		virtual void Draw(const NzScene* scene) = 0;
+		virtual bool Draw(const NzScene* scene) = 0;
 
 		virtual void EnableInstancing(bool instancing);
 
+		virtual NzString GetName() const;
 		virtual NzAbstractRenderQueue* GetRenderQueue() = 0;
+		virtual nzRenderTechniqueType GetType() const = 0;
 
 		virtual bool IsInstancingEnabled() const;
 

include/Nazara/Graphics/Enums.hpp

@@ -26,6 +26,17 @@ enum nzLightType
 	nzLightType_Max = nzLightType_Spot
 };
 
+enum nzRenderTechniqueType
+{
+	nzRenderTechniqueType_AdvancedForward, // NzAdvancedForwardRenderTechnique
+	nzRenderTechniqueType_BasicForward,    // NzBasicForwardRenderTechnique
+	nzRenderTechniqueType_DeferredShading, // NzDeferredRenderTechnique
+	nzRenderTechniqueType_LightPrePass,    // NzLightPrePassRenderTechnique
+	nzRenderTechniqueType_User,
+
+	nzRenderTechniqueType_Max = nzRenderTechniqueType_User
+};
+
 enum nzSceneNodeType
 {
 	nzSceneNodeType_Light,  // NzLight

include/Nazara/Graphics/ForwardRenderTechnique.hpp

@@ -21,10 +21,11 @@ class NAZARA_API NzForwardRenderTechnique : public NzAbstractRenderTechnique
 		~NzForwardRenderTechnique();
 
 		void Clear(const NzScene* scene);
-		void Draw(const NzScene* scene);
+		bool Draw(const NzScene* scene);
 
 		unsigned int GetMaxLightsPerObject() const;
 		NzAbstractRenderQueue* GetRenderQueue() override;
+		nzRenderTechniqueType GetType() const override;
 
 		void SetMaxLightsPerObject(unsigned int lightCount);