Changeset 2994

Timestamp:

10/02/08 18:34:07 (16 years ago)

Author:

mattausch

Message:

started to use a downsampling fbo

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling

Files:

• default.env (modified) (1 diff)
• src/DeferredRenderer.cpp (modified) (8 diffs)
• src/DeferredRenderer.h (modified) (2 diffs)
• src/chcdemo.cpp (modified) (12 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/default.env

@@ -24 +24 @@
 # ssao temporal coherence factor
 tempCohFactor=50.0f
+
+useHDR=1

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.cpp

@@ -38 +38 @@
 
 
-static CGprogram sCgInitialIntensityProgram;
 static CGprogram sCgDownSampleProgram;
 static CGprogram sCgToneProgram;
@@ -129 +128 @@
 static CGparameter sColorsTexInitialParam;
 static CGparameter sColorsTexToneParam;
-static CGparameter sIntensityTexDownSampleParam;
+
+static CGparameter sColorsTexDownSampleParam;
 
 //#define USE_3D_SSAO
@@ -532 +532 @@
                 cerr << "tone program failed to load" << endl;
 
-/*
-        sCgInitialIntensityProgram = 
+        sCgDownSampleProgram = 
                 cgCreateProgramFromFile(context, 
                                                                 CG_SOURCE,
@@ -541 +540 @@
                                                                 NULL);
 
-        if (sCgInitialIntensityProgram != NULL)
-        {
-                cgGLLoadProgram(sCgInitialIntensityProgram);
+        if (sCgDownSampleProgram != NULL)
+        {
+                cgGLLoadProgram(sCgDownSampleProgram);
 
                 // we need size of texture for scaling
-                sColorsTexInitialParam = cgGetNamedParameter(sCgInitialIntensityProgram, "colors");  
+                sColorsTexDownSampleParam = cgGetNamedParameter(sCgDownSampleProgram, "colors");  
         }
         else
                 cerr << "intensity program failed to load" << endl;
-
-*/
 
         PrintGLerror("init");
@@ -1236 +1233 @@
 
         cgGLDisableTextureParameter(sColorsTexLogLumParam);
-
         FrameBufferObject::Release();
 
@@ -1253 +1249 @@
 void DeferredRenderer::DownSample(FrameBufferObject *fbo)
 {
-        GLuint intensityTex=0;
+        ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
+        GLuint colorsTex = colorBuffer->GetTexture();
         
         cgGLEnableProfile(RenderState::sCgFragmentProfile);
         cgGLBindProgram(sCgDownSampleProgram);
         
-        cgGLSetTextureParameter(sIntensityTexDownSampleParam, intensityTex);
-        cgGLEnableTextureParameter(sIntensityTexDownSampleParam);
+        cgGLSetTextureParameter(sColorsTexDownSampleParam, colorsTex);
+        cgGLEnableTextureParameter(sColorsTexDownSampleParam);
+
+        mDownSampleFbo->Bind();
+
+        glDrawBuffers(1, mrt);
+        
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        cgGLEnableProfile(RenderState::sCgFragmentProfile);
+        cgGLBindProgram(sCgDownSampleProgram);
+
+        const float offs = 0.5f;
+
+        glBegin(GL_QUADS);
+
+        glTexCoord2f(0, 0); glVertex3f(-offs, -offs, -0.5f);
+        glTexCoord2f(1, 0); glVertex3f( offs, -offs, -0.5f);
+        glTexCoord2f(1, 1); glVertex3f( offs,  offs, -0.5f);
+        glTexCoord2f(0, 1); glVertex3f(-offs,  offs, -0.5f);
+
+        glEnd();
+
+        cgGLDisableTextureParameter(sColorsTexDownSampleParam);
+
+        FrameBufferObject::Release();
+
+        PrintGLerror("ToneMapParams");
 }
 
@@ -1270 +1293 @@
 {
         ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
+        GLuint colorsTex = colorBuffer->GetTexture();
 
         fbo->Bind();
@@ -1275 +1299 @@
         colorBufferIdx = 3 - colorBufferIdx;
         glDrawBuffers(1, mrt + colorBufferIdx);
-
-
-        GLuint colorsTex = colorBuffer->GetTexture();
         
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.h

@@ -105 +105 @@
         Camera *mCamera;
 
-        FrameBufferObject *mFbo;
-
         bool mUseTemporalCoherence;
 
@@ -116 +114 @@
         bool mRegenerateSamples;
 
+        // the main fbo we are working with
+        FrameBufferObject *mFbo;
+
+        FrameBufferObject *mDownSampleFbo;
 };
 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp

@@ -97 +97 @@
 SkyPreetham *preetham = NULL;
 
+/// the used render type for this render pass
+enum RenderMethod
+{
+        RENDER_FIXED,
+        RENDER_DEPTH_PASS,
+        RENDER_DEFERRED,
+        RENDER_DEPTH_PASS_DEFERRED,
+        RENDER_NUM_RENDER_TYPES
+};
+
+/// one of four possible render methods
+int renderMethod = RENDER_FIXED;
+
 
 /// these values get scaled with the frame rate
@@ -133 +146 @@
 int numBatches = 0;
 
-bool showHelp = false;
-bool showStatistics = false;
-bool showOptions = true;
-bool showBoundingVolumes = false;
-bool visMode = false;
 
 // mouse navigation state
@@ -146 +154 @@
 int horizontalMotionBegin = 0;
 
-bool useOptimization = false;
-bool useTightBounds = true;
-bool useRenderQueue = true;
-bool useMultiQueries = true;
-bool flyMode = true;
 
 bool leftKeyPressed = false;
@@ -159 +162 @@
 bool ascendKeyPressed = false;
 
+bool showHelp = false;
+bool showStatistics = false;
+bool showOptions = true;
+bool showBoundingVolumes = false;
+bool visMode = false;
+
+bool useOptimization = false;
+bool useTightBounds = true;
+bool useRenderQueue = true;
+bool useMultiQueries = true;
+bool flyMode = true;
+
 bool useGlobIllum = false;
 bool useTemporalCoherence = true;
+bool showAlgorithmTime = false;
+
+bool useFullScreen = false;
+bool useLODs = true;
+bool moveLight = false;
+
+bool useAdvancedShading = false;
+bool showShadowMap = false;
+bool renderLightView = false;
+
+bool altKeyPressed = false;
+
+bool useHDR = true;
 
 static float ssaoTempCohFactor = 255.0;
 
-bool showAlgorithmTime = false;
-
-GLubyte *randomNormals = NULL;
 
 PerfTimer frameTimer, algTimer;
@@ -172 +197 @@
 static int sCurrentMrtSet = 0;
 
-/// the used render type for this render pass
-enum RenderMethod
-{
-        RENDER_FIXED,
-        RENDER_DEPTH_PASS,
-        RENDER_DEFERRED,
-        RENDER_DEPTH_PASS_DEFERRED,
-        RENDER_NUM_RENDER_TYPES
-};
-
-/// one of four possible render methods
-int renderMethod = RENDER_FIXED;
-
 PerformanceGraph *perfGraph = NULL;
 
-bool useFullScreen = false;
-
-bool useLODs = true;
-
-bool moveLight = false;
 
 //DeferredRenderer::SAMPLING_METHOD samplingMethod = DeferredRenderer::SAMPLING_POISSON;
 DeferredRenderer::SAMPLING_METHOD samplingMethod = DeferredRenderer::SAMPLING_QUADRATIC;
 
-bool useAdvancedShading = false;
-
-bool showShadowMap = false;
-bool shadowChanged = true;
 
 static Matrix4x4 matProjectionView = IdentityMatrix();
 
-bool renderLightView = false;
 
 ShadowMap *shadowMap = NULL;
@@ -213 +215 @@
 SceneEntity *skyDome = NULL;
 
-bool altKeyPressed = false;
-
-#define USE_TONE_MAPPING 0
 
 
@@ -345 +344 @@
                 env.GetBoolParam(string("useLODs"), useLODs);
                 env.GetIntParam(string("shadowSize"), shadowSize);
+
+                env.GetBoolParam(string("useHDR"), useHDR);
 
                 //env.GetStringParam(string("modelPath"), model_path);
@@ -845 +846 @@
         
 
-        const bool useToneMapping = ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) || (renderMethod == RENDER_DEFERRED)) && USE_TONE_MAPPING;
+        const bool useToneMapping = ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) || (renderMethod == RENDER_DEFERRED)) && useHDR;
 
         Vector3 sunAmbient;
@@ -1190 +1191 @@
 
                 ShadowMap *sm = showShadowMap ? shadowMap : NULL;
-                ssaoShader->Render(fbo, oldViewProjMatrix, matProjectionView, ssaoTempCohFactor, light, USE_TONE_MAPPING, sm);
+                ssaoShader->Render(fbo, oldViewProjMatrix, matProjectionView, ssaoTempCohFactor, light, useHDR, sm);
         }
 
@@ -1255 +1256 @@
 
                 break;
-        case 'h':
-        case 'H':
-                showHelp = !showHelp;
-                break;
         case '+':
                 if (maxBatchSize < 10)
@@ -1364 +1361 @@
         case 'L':
                 renderLightView = !renderLightView;
+                break;
+        case 'h':
+        case 'H':
+                useHDR = !useHDR;
                 break;
         default:
@@ -2027 +2028 @@
                 state.SetRenderPassType(RenderState::DEFERRED);
 
-        const bool useToneMapping = ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) || (renderMethod == RENDER_DEFERRED)) && USE_TONE_MAPPING;
+        const bool useToneMapping = ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) || (renderMethod == RENDER_DEFERRED)) && useHDR;
 
         preetham->RenderSkyDome(-light->GetDirection(), camera, &state, !useToneMapping);