Changeset 3316 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg

Timestamp:

02/17/09 19:21:52 (15 years ago)

Author:

mattausch

Message:

surpressed blur, worked on object placing in sibenik (why performance worse than vienna??)

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg (modified) (3 diffs)

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

@@ -48 +48 @@
         weight of the pixel in the new frame.
 */
-inline float2 temporalSmoothing(float4 worldPos,
+inline float2 Reproject(float4 worldPos,
                                                                 float eyeSpaceDepth,
                                                                 float2 texcoord0,
@@ -107 +107 @@
         {
                 // pixel valid => retrieve the convergence weight
-                w = oldPixel.y;
+                float w1 = tex2Dlod(oldTex, float4(oldTexCoords + float2(0.5f / 1024.0f, 0), .0f, .0f)).y;
+                float w2 = tex2Dlod(oldTex, float4(oldTexCoords - float2(0.5f / 1024.0f, 0), .0f, .0f)).y;
+                float w3 = tex2Dlod(oldTex, float4(oldTexCoords + float2(0, 0.5f / 768.0f), .0f, .0f)).y;
+                float w4 = tex2Dlod(oldTex, float4(oldTexCoords - float2(0, 0.5f / 768.0f), .0f, .0f)).y;
+
+                w = min(min(w1, w2), min(w3, w4));
+                //w = oldPixel.y;
         }
         else
@@ -385 +391 @@
         //-- compute temporal reprojection
 
-        float2 temporalVals = temporalSmoothing(eyeSpacePos, eyeSpaceDepth, IN.texCoord, oldEyePos,
-                                                oldTex, oldModelViewProj, 
-                                                                                        colors, 
-                                                                                        projPos.xyz, 
-                                                                                        invw, 
-                                                                                        oldbl, oldbr, oldtl, oldtr,
-                                                                                        diffVec
-                                                                                        );
+        float2 temporalVals = Reproject(eyeSpacePos, eyeSpaceDepth, IN.texCoord, oldEyePos,
+                                        oldTex, oldModelViewProj, 
+                                                                        colors, 
+                                                                        projPos.xyz, 
+                                                                        invw, 
+                                                                        oldbl, oldbr, oldtl, oldtr,
+                                                                        diffVec
+                                                                        );
 
         const float oldSsao = temporalVals.x;