Graphics: Add depth render technique/queue

Former-commit-id: 711306ee5f84a9579068ce23240dc105cec15cde

include/Nazara/Graphics/DepthRenderTechnique.hpp

@@ -0,0 +1,53 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Graphics module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_DEPTHRENDERTECHNIQUE_HPP
+#define NAZARA_DEPTHRENDERTECHNIQUE_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Graphics/AbstractRenderTechnique.hpp>
+#include <Nazara/Graphics/Config.hpp>
+#include <Nazara/Graphics/DepthRenderQueue.hpp>
+#include <Nazara/Graphics/Light.hpp>
+#include <Nazara/Graphics/Material.hpp>
+#include <Nazara/Renderer/Shader.hpp>
+#include <Nazara/Utility/IndexBuffer.hpp>
+#include <Nazara/Utility/VertexBuffer.hpp>
+
+class NAZARA_GRAPHICS_API NzDepthRenderTechnique : public NzAbstractRenderTechnique
+{
+	public:
+		NzDepthRenderTechnique();
+		~NzDepthRenderTechnique() = default;
+
+		bool Draw(const NzSceneData& sceneData) const override;
+
+		NzAbstractRenderQueue* GetRenderQueue() override;
+		nzRenderTechniqueType GetType() const override;
+
+		static bool Initialize();
+		static void Uninitialize();
+
+	private:
+		void DrawBasicSprites(const NzSceneData& sceneData) const;
+		void DrawBillboards(const NzSceneData& sceneData) const;
+		void DrawOpaqueModels(const NzSceneData& sceneData) const;
+
+		NzBuffer m_vertexBuffer;
+		mutable NzDepthRenderQueue m_renderQueue;
+		NzVertexBuffer m_billboardPointBuffer;
+		NzVertexBuffer m_spriteBuffer;
+
+		static NzIndexBuffer s_quadIndexBuffer;
+		static NzMaterialRef s_material;
+		static NzVertexBuffer s_quadVertexBuffer;
+		static NzVertexDeclaration s_billboardInstanceDeclaration;
+		static NzVertexDeclaration s_billboardVertexDeclaration;
+};
+
+#include <Nazara/Graphics/DepthRenderTechnique.inl>
+
+#endif // NAZARA_DEPTHRENDERTECHNIQUE_HPP