Changeset 3025 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.cpp

Timestamp:

10/12/08 11:46:50 (16 years ago)

Author:

mattausch

Message:

worked on cg shader wrapper class

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.cpp (modified) (9 diffs)

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

@@ -66 +66 @@
 static CGparameter sFilterOffsetsParam;
 static CGparameter sFilterWeightsParam;
+static CGparameter sPCFFilterWeightsParam;
 
 static CGprogram sCgDownSampleProgram;
@@ -174 +175 @@
 
 int DeferredRenderer::colorBufferIdx = 0;
+
+
+
+static float GaussianDistribution(float x, float y, float rho)
+{
+    float g = 1.0f / sqrtf(2.0f * M_PI * rho * rho);
+    g *= expf( -(x*x + y*y) / (2.0f * rho * rho));
+
+    return g;
+}
 
 
@@ -380 +391 @@
         ShaderProgram *pr;
 
-
         sCgDeferredProgram = 
                 cgCreateProgramFromFile(context, 
@@ -583 +593 @@
                 sEyePosShadowParam = cgGetNamedParameter(sCgDeferredShadowProgram, "eyePos");
 
+                float filterWeights[NUM_PCF_TABS];
+
+                sPCFFilterWeightsParam = cgGetNamedParameter(sCgDeferredShadowProgram, "weights");
+
                 PoissonDiscSampleGenerator2 poisson(NUM_PCF_TABS, 1.0f);
                 poisson.Generate((float *)pcfSamples);
 
+                
+                for (int i = 0; i < NUM_PCF_TABS; ++ i)
+                {
+                        filterWeights[i] = GaussianDistribution(pcfSamples[i].x, pcfSamples[i].y, 1.0f);
+                }
+
                 cgGLSetParameterArray2f(sSamplesShadowParam, 0, NUM_PCF_TABS, (const float *)pcfSamples);
+                cgGLSetParameterArray1f(sPCFFilterWeightsParam, 0, NUM_PCF_TABS, (const float *)filterWeights);
 
                 pr = new ShaderProgram(sCgDeferredShadowProgram);
@@ -777 +798 @@
 #endif
 
-
         cgGLSetMatrixParameterfc(sOldModelViewProjMatrixParam, (const float *)oldProjViewMatrix.x);
 #if 0
@@ -1129 +1149 @@
 
 
-static float GaussianDistribution(float x, float y, float rho)
-{
-    float g = 1.0f / sqrtf(2.0f * M_PI * rho * rho);
-    g *= expf( -(x*x + y*y) / (2.0f * rho * rho));
-
-    return g;
-}
-
-
 void DeferredRenderer::CombineSsao(FrameBufferObject *fbo)
 {
@@ -1238 +1249 @@
 
         cgGLSetParameter1f(sSampleWidthParam, 2.0f / shadowMap->GetSize());
-        
+
          
         cgGLSetMatrixParameterfc(sShadowMatrixParam, (const float *)shadowMatrix.x);
@@ -1441 +1452 @@
 
         fbo->Bind();
-#if 1
+        
         colorBufferIdx = 3 - colorBufferIdx;
         glDrawBuffers(1, mrt + colorBufferIdx);
@@ -1468 +1479 @@
 
         glEnd();
-#endif
 
         cgGLDisableTextureParameter(sColorsTexToneParam);