Engine directory for ticket #1

Engine/source/terrain/terrCellMaterial.h

@@ -0,0 +1,199 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _TERRCELLMATERIAL_H_
+#define _TERRCELLMATERIAL_H_
+
+#ifndef _TVECTOR_H_
+#include "core/util/tVector.h"
+#endif
+#ifndef _MATTEXTURETARGET_H_
+#include "materials/matTextureTarget.h"
+#endif
+#ifndef _GFXTEXTUREHANDLE_H_
+#include "gfx/gfxTextureHandle.h"
+#endif
+#ifndef _GFXSHADER_H_
+#include "gfx/gfxShader.h"
+#endif
+#ifndef _GFXSTATEBLOCK_H_
+#include "gfx/gfxStateBlock.h"
+#endif
+
+
+class SceneRenderState;
+struct SceneData;
+class TerrainMaterial;
+class TerrainBlock;
+class BaseMatInstance;
+
+
+/// This is a complex material which holds one or more
+/// optimized shaders for rendering a single cell.
+class TerrainCellMaterial
+{
+protected:
+
+   class MaterialInfo
+   {
+   public:
+
+      MaterialInfo()
+      {
+      }
+
+      ~MaterialInfo() 
+      {
+      }
+
+      TerrainMaterial *mat;
+      U32 layerId;
+
+      GFXShaderConstHandle *detailTexConst;
+      GFXTexHandle detailTex;
+
+      GFXShaderConstHandle *normalTexConst;
+      GFXTexHandle normalTex;
+
+      GFXShaderConstHandle *detailInfoVConst;
+      GFXShaderConstHandle *detailInfoPConst;
+   };
+
+   class Pass
+   {
+   public:
+
+      Pass() 
+         :  shader( NULL )                     
+      {
+      }
+
+      ~Pass() 
+      {
+         for ( U32 i=0; i < materials.size(); i++ )
+            delete materials[i];
+      }
+
+      Vector<MaterialInfo*> materials;
+
+      ///
+      GFXShader *shader;
+
+      GFXShaderConstBufferRef consts;
+
+      GFXStateBlockRef stateBlock;
+      GFXStateBlockRef wireframeStateBlock;
+
+      GFXShaderConstHandle *modelViewProjConst;
+      GFXShaderConstHandle *worldViewOnly;
+      GFXShaderConstHandle *viewToObj;
+
+      GFXShaderConstHandle *eyePosWorldConst;
+      GFXShaderConstHandle *eyePosConst;
+
+      GFXShaderConstHandle *objTransConst;
+      GFXShaderConstHandle *worldToObjConst;
+      GFXShaderConstHandle *vEyeConst;
+
+      GFXShaderConstHandle *layerSizeConst;
+      GFXShaderConstHandle *lightParamsConst;
+      GFXShaderConstHandle *lightInfoBufferConst;
+
+      GFXShaderConstHandle *baseTexMapConst;
+      GFXShaderConstHandle *layerTexConst;
+
+      GFXShaderConstHandle *lightMapTexConst;
+
+      GFXShaderConstHandle *squareSize;
+      GFXShaderConstHandle *oneOverTerrainSize;
+
+      GFXShaderConstHandle *fogDataConst;
+      GFXShaderConstHandle *fogColorConst;
+   };
+
+   TerrainBlock *mTerrain;
+
+   U64 mMaterials;
+
+   Vector<Pass> mPasses;
+
+   U32 mCurrPass;
+
+   GFXTexHandle mBaseMapTexture;
+
+   GFXTexHandle mLayerMapTexture;
+
+   NamedTexTargetRef mLightInfoTarget;
+
+   /// The prepass material for this material.
+   TerrainCellMaterial *mPrePassMat;
+
+   /// The reflection material for this material.
+   TerrainCellMaterial *mReflectMat;
+
+   /// A vector of all terrain cell materials loaded in the system.
+   static Vector<TerrainCellMaterial*> smAllMaterials;
+
+   bool _createPass( Vector<MaterialInfo*> *materials, 
+                     Pass *pass, 
+                     bool firstPass,
+                     bool prePassMat,
+                     bool reflectMat,
+                     bool baseOnly );
+
+   void _updateMaterialConsts( Pass *pass );
+
+public:
+   
+   TerrainCellMaterial();
+   ~TerrainCellMaterial();
+
+   void init(  TerrainBlock *block, 
+               U64 activeMaterials,
+               bool prePassMat = false,
+               bool reflectMat = false,
+               bool baseOnly = false );
+
+   /// Returns a prepass material from this material.
+   TerrainCellMaterial* getPrePassMat();
+
+   /// Returns the reflection material from this material.
+   TerrainCellMaterial* getReflectMat();
+
+   void setTransformAndEye(   const MatrixF &modelXfm, 
+                              const MatrixF &viewXfm,
+                              const MatrixF &projectXfm,
+                              F32 farPlane );
+
+   ///
+   bool setupPass(   const SceneRenderState *state,
+                     const SceneData &sceneData );
+
+   ///
+   static BaseMatInstance* getShadowMat();
+
+   /// 
+   static void _updateDefaultAnisotropy();
+};
+
+#endif // _TERRCELLMATERIAL_H_
+