renderParticleMgr.h

Public Functions

GFXDeclareVertexFormat(CompositeQuadVert )

Public Functions

GFXDeclareVertexFormat(CompositeQuadVert )

  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
 24#ifndef _RENDER_PARTICLE_MGR_H_
 25#define _RENDER_PARTICLE_MGR_H_
 26
 27#ifndef _TEXTARGETBIN_MGR_H_
 28#include "renderInstance/renderTexTargetBinManager.h"
 29#endif
 30
 31#ifndef _GFXPRIMITIVEBUFFER_H_
 32#include "gfx/gfxPrimitiveBuffer.h"
 33#endif
 34
 35GFXDeclareVertexFormat( CompositeQuadVert )
 36{
 37   GFXVertexColor uvCoord;
 38};
 39
 40class RenderParticleMgr : public RenderTexTargetBinManager
 41{
 42   typedef RenderTexTargetBinManager Parent;
 43   friend class RenderTranslucentMgr;
 44
 45public:
 46   // Generic Deferred Render Instance Type
 47   static const RenderInstType RIT_Particles;
 48
 49   RenderParticleMgr();
 50   RenderParticleMgr( F32 renderOrder, F32 processAddOrder );
 51   virtual ~RenderParticleMgr();
 52
 53   // RenderBinManager
 54   void render(SceneRenderState * state);
 55   void sort();
 56   void clear();
 57   void addElement( RenderInst *inst );
 58
 59   // ConsoleObject
 60   DECLARE_CONOBJECT(RenderParticleMgr);
 61
 62   const static U8 HighResStencilRef = 0x80;
 63   const static U8 ParticleSystemStencilMask = 0x80; // We are using the top bit
 64   const static U32 OffscreenPoolSize = 5;
 65
 66   virtual void setTargetChainLength(const U32 chainLength);
 67
 68protected:
 69
 70   // Override
 71   virtual bool _handleGFXEvent(GFXDevice::GFXDeviceEventType event);
 72
 73   bool _initShader();
 74   void _initGFXResources();
 75   void _onLMActivate( const char*, bool activate );
 76
 77
 78   // Not only a helper method, but a method for the RenderTranslucentMgr to
 79   // request a particle system draw
 80   void renderInstance(ParticleRenderInst *ri, SceneRenderState *state);
 81public:
 82   void renderParticle(ParticleRenderInst *ri, SceneRenderState *state);
 83protected:
 84   bool mOffscreenRenderEnabled;
 85
 86   /// The deferred render target used for the
 87   /// soft particle shader effect.
 88   NamedTexTargetRef mDeferredTarget;
 89
 90   /// The shader used for particle rendering.
 91   GFXShaderRef mParticleShader;
 92
 93   GFXShaderRef mParticleCompositeShader;
 94   NamedTexTargetRef mEdgeTarget;
 95
 96   struct OffscreenSystemEntry
 97   {
 98      S32 targetChainIdx;
 99      MatrixF clipMatrix;
100      RectF screenRect; 
101      bool drawnThisFrame;
102      Vector<ParticleRenderInst*> pInstances;
103   };
104   Vector<OffscreenSystemEntry> mOffscreenSystems;
105
106   struct ShaderConsts
107   {
108      GFXShaderConstBufferRef mShaderConsts;
109      GFXShaderConstHandle *mModelViewProjSC;
110      GFXShaderConstHandle *mFSModelViewProjSC;
111      GFXShaderConstHandle *mOneOverFarSC;
112      GFXShaderConstHandle *mOneOverSoftnessSC;
113      GFXShaderConstHandle *mDeferredTargetParamsSC;
114      GFXShaderConstHandle *mAlphaFactorSC;
115      GFXShaderConstHandle *mAlphaScaleSC;
116      GFXShaderConstHandle *mSamplerDiffuse;
117      GFXShaderConstHandle *mSamplerDeferredTex;
118      GFXShaderConstHandle *mSamplerParaboloidLightMap;
119
120   } mParticleShaderConsts;
121
122   struct CompositeShaderConsts
123   {
124      GFXShaderConstBufferRef mShaderConsts;
125      GFXShaderConstHandle *mSystemDepth;
126      GFXShaderConstHandle *mScreenRect;
127      GFXShaderConstHandle *mSamplerColorSource;
128      GFXShaderConstHandle *mSamplerEdgeSource;
129      GFXShaderConstHandle *mEdgeTargetParamsSC;
130      GFXShaderConstHandle *mOffscreenTargetParamsSC;
131   } mParticleCompositeShaderConsts;
132
133   GFXVertexBufferHandle<CompositeQuadVert> mScreenQuadVertBuff;
134   GFXPrimitiveBufferHandle mScreenQuadPrimBuff;
135
136   GFXStateBlockRef mStencilClearSB;
137   GFXStateBlockRef mHighResBlocks[ParticleRenderInst::BlendStyle_COUNT];
138   GFXStateBlockRef mOffscreenBlocks[ParticleRenderInst::BlendStyle_COUNT];
139   GFXStateBlockRef mBackbufferBlocks[ParticleRenderInst::BlendStyle_COUNT];
140   GFXStateBlockRef mMixedResBlocks[ParticleRenderInst::BlendStyle_COUNT];
141
142public:
143   GFXStateBlockRef _getHighResStateBlock(ParticleRenderInst *ri);
144   GFXStateBlockRef _getMixedResStateBlock(ParticleRenderInst *ri);
145   GFXStateBlockRef _getOffscreenStateBlock(ParticleRenderInst *ri);
146   GFXStateBlockRef _getCompositeStateBlock(ParticleRenderInst *ri);
147   ShaderConsts &_getShaderConsts() { return mParticleShaderConsts; };
148};
149
150
151#endif // _RENDER_TRANSLUCENT_MGR_H_
152