Changeset 3297 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.cpp

Timestamp:

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

Author:

mattausch

Message:

 

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.cpp (modified) (2 diffs)

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;
         }
 }