Changeset 3370 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg

Timestamp:

05/18/09 18:53:06 (15 years ago)

Author:

mattausch

Message:

debug version

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg (modified) (8 diffs)

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

@@ -459 +459 @@
                         sampler2D colors,
                         sampler2D noiseTex,
+                        float2 dummySamples[NUM_SAMPLES],
                         sampler2D samples,
                         float3 normal,
@@ -486 +487 @@
                 float2 offset;
 
-                const float2 ssaoOffset = 
-                        tex2Dlod(samples, float4((0.5f + i + oldIdx) / NUM_PRECOMPUTED_SAMPLES, .5f, .0f, .0f)).xy;
-
+                //const float2 ssaoOffset = tex2Dlod(samples, float4((0.5f + i + oldIdx) / NUM_PRECOMPUTED_SAMPLES, .5f, .0f, .0f)).xy;
+                const float2 ssaoOffset = dummySamples[i];
 
                 ////////////////////
@@ -494 +494 @@
                 //-- (affects performance for some reason!)
 
-                if (!USE_OPTIMIZATION ||
-                        (convergence < SSAO_CONVERGENCE_THRESHOLD))
+                if (0)//!USE_OPTIMIZATION ||
+                        //(convergence < SSAO_CONVERGENCE_THRESHOLD))
                 {
                         float2 mynoise = tex2Dlod(noiseTex, float4(IN.texCoord * 4.0f, 0, 0)).xy;
-                        //offset = myreflect(samples[i], mynoise);
-                        //offset = myrotate(samples[i], mynoise.x);
+                        //offset = myreflect(samples[i], mynoise); offset = myrotate(samples[i], mynoise.x);
                         offset = myrotate(ssaoOffset, mynoise.x);
                 }
@@ -557 +556 @@
                 if ((cosAngle >= 0) && (pixelValid < 90.0f))// || (cosAngle2 >= 0))
                 {
-                        //pixelValid = (distanceDiff > 1e-3f) ? 100.0f : .0f;
-                        pixelValid = (distanceDiff > 1e-3f) ? 5.0f : .0f;
+                        pixelValid = (distanceDiff > 1e-3f) ? 100.0f : .0f;
+                        //pixelValid = (distanceDiff > 1e-3f) ? 5.0f : .0f;
                 }
 
@@ -604 +603 @@
                         uniform sampler2D noiseTex,
                         uniform sampler2D samples,
+                        uniform float2 dummySamples[NUM_SAMPLES],
                         uniform sampler2D oldTex,
                         uniform float4x4 modelViewProj,
@@ -685 +685 @@
         float3 ao;
         //$$temp matt
-        //oldIdx = dummyIdx;
+        oldIdx = dummyIdx;
 
         // cull background note: this should be done with the stencil buffer
         if (eyeSpaceDepth < DEPTH_THRESHOLD)
         {
-                if (1)
-                {
 #ifdef TRYOUT
-                        ao = ssao(IN, colors, noiseTex, samples, normal, eyeSpacePos.xyz, 
-                                      radiusMult, bl, br, tl, tr, normalize(viewDir),
-                                          oldWeight, sampleIntensity, isMovingObject, oldIdx);
+                ao = ssao(IN, colors, noiseTex, samples, normal, eyeSpacePos.xyz, 
+                              radiusMult, bl, br, tl, tr, normalize(viewDir),
+                              oldWeight, sampleIntensity, isMovingObject, oldIdx);
 #else
 
-                          ao = ssao(IN, colors, noiseTex, samples,
-                                      normal, eyeSpacePos.xyz, radiusMult, bl, 
-                                          br, tl, tr, normalize(viewDir), 
-                                          oldWeight, sampleIntensity, isMovingObject, oldIdx,
-                                          attribsTex, mycolor.xyz);
+                ao = ssao(IN, colors, noiseTex, dummySamples, samples,
+                              normal, eyeSpacePos.xyz, radiusMult, bl, 
+                              br, tl, tr, normalize(viewDir), 
+                              oldWeight, sampleIntensity, isMovingObject, oldIdx,
+                              attribsTex, mycolor.xyz);
 #endif                            
-                }
-                else
-                {
-                        /*ao = ssao2(IN, colors, noiseTex, samples, normal, eyeSpacePos.xyz, radiusMult, 
-                                   bl, br, tl, tr, normalize(viewDir), oldWeight, sampleIntensity, 
-                                           isMovingObject, normals, oldIdx);
-                        */
-                }
         }
         else
@@ -752 +742 @@
 
                 oldWeight = min(oldWeight, factor * NUM_SAMPLES);
-                if (newIdx >= factor * NUM_SAMPLES) {newIdx = 0; /*oldWeight = .0f;*/ }
+                if (newIdx >= factor * NUM_SAMPLES) 
+                {
+                        newIdx = .0f; 
+                        //oldWeight = .0f;
+                }
 
                 //combinedWeight = oldWeight;
@@ -764 +758 @@
         //-- blend ao between old and new samples (and avoid division by zero)
 
-        OUT.illum_col.x = ao.x * newWeight + oldSsao * oldWeight;
-        OUT.illum_col.x /= (newWeight + oldWeight);
-        //OUT.illum_col.x = clamp(OUT.illum_col.x, 0, 1);
-        //OUT.illum_col.x = ao.y;
+        OUT.illum_col.x = ao.x;// * newWeight + oldSsao * oldWeight;
+        //OUT.illum_col.x /= (newWeight + oldWeight);
 
         OUT.illum_col.y = combinedWeight;