Changeset 3157 for GTP

Timestamp:

11/24/08 18:02:20 (16 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg (modified) (5 diffs)

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

@@ -184 +184 @@
 
         const float squaredLen = diffVec.x * diffVec.x + diffVec.y * diffVec.y + diffVec.z * diffVec.z;
-
         const float oldWeight = clamp(oldPixel.y, .0f, temporalCoherence);
         //const float oldWeight = oldPixel.y;
@@ -262 +261 @@
                 const float3 sampleNormal = normalize(tex2Dlod(normalTex, float4(texcoord, 0, 0)).xyz);
 
-                numSamples += sampleColor.x;
-
 
                 ////////////////
@@ -292 +289 @@
                 total_ao += cosAngle * aoContrib;
 #endif
+                // check if the samples have been valid in the last frame
+                numSamples += (1.0f - step(1.0f, lengthToSample)) * sampleColor.x;
         }
 
@@ -343 +342 @@
                 const float3 samplePos = ReconstructSamplePos(sampleColor.w, texcoord, bl, br, tl, tr);
                 
-                numSamples += sampleColor.x;
-
 
                 ////////////////
@@ -371 +368 @@
                 total_ao += cosAngle * aoContrib;
 #endif
+
+                // check if the samples have been valid in the last frame
+                numSamples += (1.0f - step(1.0f, lengthToSample)) * sampleColor.x;
         }