renderPrePassMgr.h
Engine/source/renderInstance/renderPrePassMgr.h
Classes:
class
class
Detailed Description
1 2//----------------------------------------------------------------------------- 3// Copyright (c) 2012 GarageGames, LLC 4// 5// Permission is hereby granted, free of charge, to any person obtaining a copy 6// of this software and associated documentation files (the "Software"), to 7// deal in the Software without restriction, including without limitation the 8// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 9// sell copies of the Software, and to permit persons to whom the Software is 10// furnished to do so, subject to the following conditions: 11// 12// The above copyright notice and this permission notice shall be included in 13// all copies or substantial portions of the Software. 14// 15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21// IN THE SOFTWARE. 22//----------------------------------------------------------------------------- 23#ifndef _PREPASS_MGR_H_ 24#define _PREPASS_MGR_H_ 25 26#include "renderInstance/renderTexTargetBinManager.h" 27#include "materials/matInstance.h" 28#include "materials/processedShaderMaterial.h" 29#include "shaderGen/conditionerFeature.h" 30#include "core/util/autoPtr.h" 31 32// Forward declare 33class PrePassMatInstance; 34 35// This render manager renders opaque objects to the z-buffer as a z-fill pass. 36// It can optionally accumulate data from this opaque render pass into a render 37// target for later use. 38class RenderPrePassMgr : public RenderTexTargetBinManager 39{ 40 typedef RenderTexTargetBinManager Parent; 41 42public: 43 44 // registered buffer name 45 static const String BufferName; 46 47 // andremwac: Deferred Rendering 48 static const String ColorBufferName; 49 static const String MatInfoBufferName; 50 51 // Generic PrePass Render Instance Type 52 static const RenderInstType RIT_PrePass; 53 54 RenderPrePassMgr( bool gatherDepth = true, 55 GFXFormat format = GFXFormatR16G16B16A16 ); 56 57 virtual ~RenderPrePassMgr(); 58 59 virtual void setPrePassMaterial( PrePassMatInstance *mat ); 60 61 // RenderBinManager interface 62 virtual void render(SceneRenderState * state); 63 virtual void sort(); 64 virtual void clear(); 65 virtual void addElement( RenderInst *inst ); 66 67 // ConsoleObject 68 DECLARE_CONOBJECT(RenderPrePassMgr); 69 70 71 typedef Signal<void(const SceneRenderState*, RenderPrePassMgr*, bool)> RenderSignal; 72 73 static RenderSignal& getRenderSignal(); 74 75 static const U32 OpaqueStaticLitMask = BIT(1); ///< Stencil mask for opaque, lightmapped pixels 76 static const U32 OpaqueDynamicLitMask = BIT(0); ///< Stencil mask for opaque, dynamic lit pixels 77 78 static const GFXStateBlockDesc &getOpaqueStencilTestDesc(); 79 static const GFXStateBlockDesc &getOpaqueStenciWriteDesc(bool lightmappedGeometry = true); 80 81 virtual bool setTargetSize(const Point2I &newTargetSize); 82 83 inline BaseMatInstance* getPrePassMaterial( BaseMatInstance *mat ); 84 85protected: 86 87 /// The terrain render instance elements. 88 Vector< MainSortElem> mTerrainElementList; 89 90 /// The object render instance elements. 91 Vector< MainSortElem> mObjectElementList; 92 93 PrePassMatInstance *mPrePassMatInstance; 94 95 virtual void _registerFeatures(); 96 virtual void _unregisterFeatures(); 97 virtual bool _updateTargets(); 98 virtual void _createPrePassMaterial(); 99 100 bool _lightManagerActivate(bool active); 101 102 // Deferred Shading 103 GFXVertexBufferHandle<GFXVertexPC> mClearGBufferVerts; 104 GFXShaderRef mClearGBufferShader; 105 GFXStateBlockRef mStateblock; 106 NamedTexTarget mColorTarget; 107 NamedTexTarget mMatInfoTarget; 108 GFXTexHandle mColorTex; 109 GFXTexHandle mMatInfoTex; 110 GFXShaderConstBufferRef mShaderConsts; 111 GFXShaderConstHandle *mSpecularStrengthSC; 112 GFXShaderConstHandle *mSpecularPowerSC; 113 114public: 115 void clearBuffers(); 116 void _initShaders(); 117}; 118 119//------------------------------------------------------------------------------ 120 121class ProcessedPrePassMaterial : public ProcessedShaderMaterial 122{ 123 typedef ProcessedShaderMaterial Parent; 124 125public: 126 ProcessedPrePassMaterial(Material& mat, const RenderPrePassMgr *prePassMgr); 127 128 virtual U32 getNumStages(); 129 130 virtual void addStateBlockDesc(const GFXStateBlockDesc& desc); 131 132protected: 133 virtual void _determineFeatures( U32 stageNum, MaterialFeatureData &fd, const FeatureSet &features ); 134 135 const RenderPrePassMgr *mPrePassMgr; 136 bool mIsLightmappedGeometry; 137}; 138 139//------------------------------------------------------------------------------ 140 141class PrePassMatInstance : public MatInstance 142{ 143 typedef MatInstance Parent; 144 145public: 146 PrePassMatInstance(MatInstance* root, const RenderPrePassMgr *prePassMgr); 147 virtual ~PrePassMatInstance(); 148 149 bool init() 150 { 151 return init( mFeatureList, mVertexFormat ); 152 } 153 154 // MatInstance 155 virtual bool init( const FeatureSet &features, 156 const GFXVertexFormat *vertexFormat ); 157 158protected: 159 virtual ProcessedMaterial* getShaderMaterial(); 160 161 const RenderPrePassMgr *mPrePassMgr; 162}; 163 164//------------------------------------------------------------------------------ 165 166class PrePassMatInstanceHook : public MatInstanceHook 167{ 168public: 169 PrePassMatInstanceHook(MatInstance *baseMatInst, const RenderPrePassMgr *prePassMgr); 170 virtual ~PrePassMatInstanceHook(); 171 172 virtual PrePassMatInstance *getPrePassMatInstance() { return mHookedPrePassMatInst; } 173 174 virtual const MatInstanceHookType& getType() const { return Type; } 175 176 /// The type for prepass material hooks. 177 static const MatInstanceHookType Type; 178 179protected: 180 PrePassMatInstance *mHookedPrePassMatInst; 181 const RenderPrePassMgr *mPrePassManager; 182}; 183 184//------------------------------------------------------------------------------ 185 186// A very simple, default depth conditioner feature 187class LinearEyeDepthConditioner : public ConditionerFeature 188{ 189 typedef ConditionerFeature Parent; 190 191public: 192 LinearEyeDepthConditioner(const GFXFormat bufferFormat) 193 : Parent(bufferFormat) 194 { 195 196 } 197 198 virtual String getName() 199 { 200 return "Linear Eye-Space Depth Conditioner"; 201 } 202 203 virtual void processPix( Vector<ShaderComponent*> &componentList, const MaterialFeatureData &fd ); 204protected: 205 virtual Var *_conditionOutput( Var *unconditionedOutput, MultiLine *meta ); 206 virtual Var *_unconditionInput( Var *conditionedInput, MultiLine *meta ); 207 208 virtual Var *printMethodHeader( MethodType methodType, const String &methodName, Stream &stream, MultiLine *meta ); 209}; 210 211 212inline BaseMatInstance* RenderPrePassMgr::getPrePassMaterial( BaseMatInstance *mat ) 213{ 214 PrePassMatInstanceHook *hook = static_cast<PrePassMatInstanceHook*>( mat->getHook( PrePassMatInstanceHook::Type ) ); 215 if ( !hook ) 216 { 217 hook = new PrePassMatInstanceHook( static_cast<MatInstance*>( mat ), this ); 218 mat->addHook( hook ); 219 } 220 221 return hook->getPrePassMatInstance(); 222} 223 224#endif // _PREPASS_MGR_H_ 225 226