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Source/Engine/Graphics/Materials/TerrainMaterialShader.h

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "MaterialShader.h"
+
+/// <summary>
+/// Represents material that can be used to render terrain.
+/// </summary>
+class TerrainMaterialShader : public MaterialShader
+{
+private:
+
+    struct Cache
+    {
+        PipelineStateCache Default;
+        PipelineStateCache DefaultLightmap;
+        PipelineStateCache Depth;
+
+        FORCE_INLINE PipelineStateCache* GetPS(const DrawPass pass, const bool useLightmap)
+        {
+            switch (pass)
+            {
+            case DrawPass::Depth:
+                return &Depth;
+            case DrawPass::GBuffer:
+                return useLightmap ? &DefaultLightmap : &Default;
+            default:
+                return nullptr;
+            }
+        }
+
+        FORCE_INLINE void Release()
+        {
+            Default.Release();
+            DefaultLightmap.Release();
+            Depth.Release();
+        }
+    };
+
+private:
+
+    Cache _cache;
+
+public:
+
+    /// <summary>
+    /// Init
+    /// </summary>
+    /// <param name="name">Material resource name</param>
+    TerrainMaterialShader(const String& name)
+        : MaterialShader(name)
+    {
+    }
+
+public:
+
+    // [MaterialShader]
+    DrawPass GetDrawModes() const override;
+    bool CanUseLightmap() const override;
+    void Bind(BindParameters& params) override;
+    void Unload() override;
+
+protected:
+
+    // [MaterialShader]
+    bool Load() override;
+};