Changeset 3297 for GTP

Timestamp:

02/11/09 01:52:36 (15 years ago)

Author:

mattausch

Message:

 

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling

Files:

• default.env (modified) (1 diff)
• src/DeferredRenderer.cpp (modified) (2 diffs)
• src/chcdemo.cpp (modified) (1 diff)
• src/shaderenv.h (modified) (3 diffs)
• src/shaders/combineSsao.cg (modified) (4 diffs)

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

@@ -107 +107 @@
 useFullScreen=0
 
-# the used render method (forward, forward + depth pass, deferred, deferred + depth pass
+# the used render method (forward, forward + depth pass, deferred, deferred + depth pass)
 #renderMethod=2
 renderMethod=0

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

@@ -652 +652 @@
 #else
 
+/** star filter
+*/
 void DeferredRenderer::PrepareSsaoFilter()
 {
@@ -662 +664 @@
         const float yoffs = (float)filterWidth / mHeight;
 
-        for (int i = 0; i < NUM_SSAO_FILTER_SAMPLES / 2; ++ i)
-        {
-                float x = xoffs * (i - NUM_SSAO_FILTER_SAMPLES / 4);
-                float y = 0;
+        const int n = NUM_SSAO_FILTER_SAMPLES / 2 + 1;
+
+        for (int i = 0; i < n; ++ i)
+        {
+                const int idx = i - NUM_SSAO_FILTER_SAMPLES / 4;
+
+                const float x = xoffs * (float)idx;
+                const float y = 0;
 
                 ssaoFilterWeights[i] = GaussianDistribution(x, y, 1.0f);
                 
-                ssaoFilterOffsets[2 * i + 0] = xoffs;
-                ssaoFilterOffsets[2 * i + 1] = yoffs;
-        }
-
-        for (int i = 0; i < NUM_SSAO_FILTER_SAMPLES / 2; ++ i)
-        {
-                float x = 0;
-                float y = yoffs * (i - NUM_SSAO_FILTER_SAMPLES / 4);
-
-                ssaoFilterWeights[i] = GaussianDistribution(x, y, 1.0f);
-                //ssaoFilterWeights[i] = 1.0f;
-
-                ssaoFilterOffsets[2 * (NUM_SSAO_FILTER_SAMPLES / 2 + i) + 0] *= xoffs;
-                ssaoFilterOffsets[2 * (NUM_SSAO_FILTER_SAMPLES / 2 + i) + 1] *= yoffs;
+                ssaoFilterOffsets[2 * i + 0] = x;
+                ssaoFilterOffsets[2 * i + 1] = y;
+        }
+
+        int j = 2 * n;
+
+        for (int i = 0; i < n; ++ i)
+        { 
+                const int idx = i - NUM_SSAO_FILTER_SAMPLES / 4;
+
+                if (idx)
+                {
+                        const float x = 0;
+                        const float y = yoffs * (float)idx;
+
+                        ssaoFilterWeights[i] = GaussianDistribution(x, y, 1.0f);
+                        //ssaoFilterWeights[i] = 1.0f;
+                        
+                        ssaoFilterOffsets[j + 0] = x;
+                        ssaoFilterOffsets[j + 1] = y;
+
+                        j += 2;
+                }
+        }
+
+        for (int i = 0; i < NUM_SSAO_FILTER_SAMPLES; ++ i)
+        {
+                cout << "samples " << i << ": " << ssaoFilterOffsets[i * 2] << " " << ssaoFilterOffsets[i * 2 + 1] << endl;
         }
 }

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

@@ -625 +625 @@
         if (0) LoadPompeiiFloor();
 
-#if 0
+#if 1
         const Vector3 sceneCenter(470.398f, 240.364f, 181.7f);
         //const Vector3 sceneCenter(470.398f, 240.364f, 180.3);

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

@@ -8 +8 @@
 //#define NUM_SAMPLES 8
 //#define NUM_SAMPLES 16
-//#define NUM_SAMPLES 24
-#define NUM_SAMPLES 48
+#define NUM_SAMPLES 24
+//#define NUM_SAMPLES 48
 
 #define MIN_SAMPLES 8
@@ -20 +20 @@
 #define VIEW_CORRECTION_SCALE 1.0f
 
-#define NUM_SSAO_FILTER_SAMPLES 16
+//#define NUM_SSAO_FILTER_SAMPLES 13 // 7x7
+#define NUM_SSAO_FILTER_SAMPLES 9
+//#define NUM_SSAO_FILTER_SAMPLES 5
 
 #define SSAO_CONVERGENCE_THRESHOLD 700.0f
@@ -62 +64 @@
 #define NUM_DOF_TABS 16
 
-#define USE_GTX
+//#define USE_GTX
 
 #endif // __SHADERENV_H

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/combineSsao.cg

@@ -69 +69 @@
                 //samplePos = ReconstructSamplePos(ssaoTex, sampleTexCoord.xy, bl, br, tl, tr);
 
-                len = min(SqrLen(centerPos - samplePos), 1e2f);
+                len = SqrLen(centerPos - samplePos);
+                //len = length(centerPos - samplePos);
                 spatialFactor = 1.0f / max(len, 1e-3f);
 
@@ -144 +145 @@
 
         // filter up to a certain convergance value and leave out background (sky) by checking depth
-        if ((convergence < SSAO_CONVERGENCE_THRESHOLD) && (col.w < 1e10f))
+        if (//(convergence < SSAO_CONVERGENCE_THRESHOLD) &&
+                (col.w < 1e10f))
         {
                 const float distanceScale = 1.0f;
@@ -151 +153 @@
                 const float convergenceWeight = SSAO_CONVERGENCE_THRESHOLD / (ssaoFilterRadius - 1.0f);
                 const float convergenceScale = convergenceWeight / (convergence + convergenceWeight);
-                const float scale = ssaoFilterRadius * convergenceScale * distanceScale;
+                const float scale = 1;//ssaoFilterRadius * convergenceScale * distanceScale;
 
                 // the filtered ssao value
@@ -221 +223 @@
                 const float convergenceWeight = SSAO_CONVERGENCE_THRESHOLD / (ssaoFilterRadius - 1.0f);
                 const float convergenceScale = convergenceWeight / (convergence + convergenceWeight);
-                const float scale = ssaoFilterRadius * convergenceScale * distanceScale;
+                const float scale = 1;//ssaoFilterRadius * convergenceScale * distanceScale;
 
                 // the filtered ssao value