Changeset 3196 for GTP

Timestamp:

11/29/08 22:14:13 (16 years ago)

Author:

mattausch

Message:

obviously solved filtering problem, but still problems with building edges

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling/src

Files:

• shaderenv.h (modified) (1 diff)
• shaders/combineSsao.cg (modified) (1 diff)
• shaders/deferred.cg (modified) (2 diffs)
• shaders/ssao.cg (modified) (1 diff)

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

@@ -12 +12 @@
 // for quadratic falloff
 //#define SAMPLE_INTENSITY 0.9f
-#define SAMPLE_INTENSITY 2.0f
+//#define SAMPLE_INTENSITY 2.0f
 
 //#define SAMPLE_INTENSITY 0.075f
-//#define SAMPLE_INTENSITY 0.2f
+#define SAMPLE_INTENSITY 0.2f
 
 #define SAMPLE_RADIUS 8e-1f

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

@@ -179 +179 @@
 
         float4 dummy;
-        const float xoffs = .5f / 1024.0f;
-        const float yoffs = .5f / 768.0f;
-
-        dummy.x = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(xoffs, 0), 0, 0)).y;
+        //const float xoffs = .5f / 1024.0f;    const float yoffs = .5f / 768.0f;
+        const float xoffs = 1.0f / 1024.0f;     const float yoffs = 1.0f / 768.0f;
+
+        dummy.x = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(xoffs, yoffs), 0, 0)).w;
+        dummy.y = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(xoffs, -yoffs), 0, 0)).w;
+        dummy.z = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(-xoffs, yoffs), 0, 0)).w;
+        dummy.w = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(-yoffs, -yoffs), 0, 0)).w;
+
+        /*dummy.x = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(xoffs, 0), 0, 0)).y;
         dummy.y = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(0, yoffs), 0, 0)).y;
         dummy.z = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(-xoffs, 0), 0, 0)).y;
         dummy.w = tex2Dlod(ssaoTex, float4(IN.texCoord + float2(0, -yoffs), 0, 0)).y;
-
+*/
         const float convergence = min(min(dummy.x, dummy.y), min(dummy.z, dummy.w));
         //const float convergence = max(max(dummy.x, dummy.y), max(dummy.z, dummy.w));

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

@@ -296 +296 @@
         pixel pix;
 
-        //const float3 normal = normalize(tex2Dlod(normalsTex, float4(IN.texCoord, 0 ,0)).xyz);
-        const float3 normal = tex2Dlod(normalsTex, float4(IN.texCoord, 0 ,0)).xyz;
+        const float3 normal = normalize(tex2Dlod(normalsTex, float4(IN.texCoord, 0 ,0)).xyz);
         const float3 difVec = tex2Dlod(diffVals, float4(IN.texCoord, 0 ,0)).xyz;
 
@@ -305 +304 @@
         
         float4 dummy;
-        const float xoffs = .5f / 1024.0f;
-        const float yoffs = .5f / 768.0f;
-
-        dummy.x = tex2Dlod(colorsTex, float4(IN.texCoord + float2(xoffs, 0), 0, 0)).w;
-        dummy.y = tex2Dlod(colorsTex, float4(IN.texCoord + float2(0, yoffs), 0, 0)).w;
-        dummy.z = tex2Dlod(colorsTex, float4(IN.texCoord + float2(-xoffs, 0), 0, 0)).w;
-        dummy.w = tex2Dlod(colorsTex, float4(IN.texCoord + float2(0, -yoffs), 0, 0)).w;
-        color.w =  max(max(dummy.x, dummy.y), max(dummy.z, dummy.w));
+        //const float xoffs = .5f / 1024.0f; const float yoffs = .5f / 768.0f;
+        const float xoffs = 1.0f / 1024.0f; const float yoffs = 1.0f / 768.0f;
+
+        dummy.x = tex2Dlod(colorsTex, float4(IN.texCoord + float2(xoffs, yoffs), 0, 0)).w;
+        dummy.y = tex2Dlod(colorsTex, float4(IN.texCoord + float2(xoffs, -yoffs), 0, 0)).w;
+        dummy.z = tex2Dlod(colorsTex, float4(IN.texCoord + float2(-xoffs, yoffs), 0, 0)).w;
+        dummy.w = tex2Dlod(colorsTex, float4(IN.texCoord + float2(-yoffs, -yoffs), 0, 0)).w;
+        //color.w = min(min(dummy.x, dummy.y), min(dummy.z, dummy.w));
+        //color.w = max(max(dummy.x, dummy.y), max(dummy.z, dummy.w));
         
         // store scaled view vector so wie don't have to normalize for e.g., ssao

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

@@ -300 +300 @@
                 // the distance_scale offset is used to avoid singularity that occurs at global illumination when 
                 // the distance to a sample approaches zero
-                const float aoContrib = SAMPLE_INTENSITY / (DISTANCE_SCALE + lengthToSample * lengthToSample);
+                //const float aoContrib = SAMPLE_INTENSITY / (DISTANCE_SCALE + lengthToSample * lengthToSample);
+                const float aoContrib = SAMPLE_INTENSITY / max(1e-1f, lengthToSample * lengthToSample);
                 //const float aoContrib = (1.0f > lengthToSample) ? occlusionPower(9e-2f, DISTANCE_SCALE + lengthToSample): .0f;