Engine directory for ticket #1

2026-03-05 13:30:34 +00:00 · 2012-09-19 11:15:01 -04:00 · 2012-09-19 11:15:01 -04:00 · 7dbfe6994d
commit 7dbfe6994d
parent 352279af7a
3795 changed files with 1363358 additions and 0 deletions
--- a/Engine/source/renderInstance/renderParticleMgr.h
+++ b/Engine/source/renderInstance/renderParticleMgr.h
@ -0,0 +1,141 @@
+//-----------------------------------------------------------------------------
+// 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 _RENDER_PARTICLE_MGR_H_
+#define _RENDER_PARTICLE_MGR_H_
+
+#ifndef _TEXTARGETBIN_MGR_H_
+#include "renderInstance/renderTexTargetBinManager.h"
+#endif
+
+#ifndef _GFXPRIMITIVEBUFFER_H_
+#include "gfx/gfxPrimitiveBuffer.h"
+#endif
+
+GFXDeclareVertexFormat( CompositeQuadVert )
+{
+   GFXVertexColor uvCoord;
+};
+
+class RenderParticleMgr : public RenderTexTargetBinManager
+{
+   typedef RenderTexTargetBinManager Parent;
+   friend class RenderTranslucentMgr;
+
+public:
+   // Generic PrePass Render Instance Type
+   static const RenderInstType RIT_Particles;
+
+   RenderParticleMgr();
+   RenderParticleMgr( F32 renderOrder, F32 processAddOrder );
+   virtual ~RenderParticleMgr();
+
+   // RenderBinManager
+   void render(SceneRenderState * state);
+   void sort();
+   void clear();
+   void addElement( RenderInst *inst );
+
+   // ConsoleObject
+   DECLARE_CONOBJECT(RenderParticleMgr);
+
+   const static U8 HighResStencilRef = 0x80;
+   const static U8 ParticleSystemStencilMask = 0x80; // We are using the top bit
+   const static U32 OffscreenPoolSize = 5;
+
+   virtual void setTargetChainLength(const U32 chainLength);
+
+protected:
+
+   // Override
+   virtual bool _handleGFXEvent(GFXDevice::GFXDeviceEventType event);
+
+   bool _initShader();
+   void _initGFXResources();
+   void _onLMActivate( const char*, bool activate );
+
+
+   // Not only a helper method, but a method for the RenderTranslucentMgr to
+   // request a particle system draw
+   void renderInstance(ParticleRenderInst *ri, SceneRenderState *state);
+
+   bool mOffscreenRenderEnabled;
+
+   /// The prepass render target used for the
+   /// soft particle shader effect.
+   NamedTexTargetRef mPrepassTarget;
+
+   /// The shader used for particle rendering.
+   GFXShaderRef mParticleShader;
+
+   GFXShaderRef mParticleCompositeShader;
+   NamedTexTargetRef mEdgeTarget;
+
+   struct OffscreenSystemEntry
+   {
+      S32 targetChainIdx;
+      MatrixF clipMatrix;
+      RectF screenRect; 
+      bool drawnThisFrame;
+      Vector<ParticleRenderInst *> pInstances;
+   };
+   Vector<OffscreenSystemEntry> mOffscreenSystems;
+
+   struct ShaderConsts
+   {
+      GFXShaderConstBufferRef mShaderConsts;
+      GFXShaderConstHandle *mModelViewProjSC;
+      GFXShaderConstHandle *mFSModelViewProjSC;
+      GFXShaderConstHandle *mOneOverFarSC;
+      GFXShaderConstHandle *mOneOverSoftnessSC;
+      GFXShaderConstHandle *mPrePassTargetParamsSC;
+      GFXShaderConstHandle *mAlphaFactorSC;
+      GFXShaderConstHandle *mAlphaScaleSC;
+
+   } mParticleShaderConsts;
+
+   struct CompositeShaderConsts
+   {
+      GFXShaderConstBufferRef mShaderConsts;
+      GFXShaderConstHandle *mSystemDepth;
+      GFXShaderConstHandle *mScreenRect;
+      GFXShaderConstHandle *mEdgeTargetParamsSC;
+      GFXShaderConstHandle *mOffscreenTargetParamsSC;
+   } mParticleCompositeShaderConsts;
+
+   GFXVertexBufferHandle<CompositeQuadVert> mScreenQuadVertBuff;
+   GFXPrimitiveBufferHandle mScreenQuadPrimBuff;
+
+   GFXStateBlockRef mStencilClearSB;
+   GFXStateBlockRef mHighResBlocks[ParticleRenderInst::BlendStyle_COUNT];
+   GFXStateBlockRef mOffscreenBlocks[ParticleRenderInst::BlendStyle_COUNT];
+   GFXStateBlockRef mBackbufferBlocks[ParticleRenderInst::BlendStyle_COUNT];
+   GFXStateBlockRef mMixedResBlocks[ParticleRenderInst::BlendStyle_COUNT];
+   
+   GFXStateBlockRef _getHighResStateBlock(ParticleRenderInst *ri);
+   GFXStateBlockRef _getMixedResStateBlock(ParticleRenderInst *ri);
+   GFXStateBlockRef _getOffscreenStateBlock(ParticleRenderInst *ri);
+   GFXStateBlockRef _getCompositeStateBlock(ParticleRenderInst *ri);
+};
+
+
+#endif // _RENDER_TRANSLUCENT_MGR_H_