Changeset 3197 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src

Timestamp:

11/30/08 12:48:37 (16 years ago)

Author:

mattausch

Message:

debug version:still some problems with house corner geometry and ssao

Location:

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

Files:

• DeferredRenderer.cpp (modified) (1 diff)
• chcdemo.cpp (modified) (1 diff)
• shaders/combineSsao.cg (modified) (2 diffs)
• shaders/deferred.cg (modified) (3 diffs)
• shaders/ssao.cg (modified) (3 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/DeferredRenderer.cpp

@@ -315 +315 @@
         mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
         // downsample buffer for the normal texture
-        mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
+        //mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
+        mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
         // downsample buffer for the offset texture
-        mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
+        //mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
+        mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
 
         for (int i = 0; i < 3; ++ i)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp

@@ -591 +591 @@
         fbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR, ColorBufferObject::FILTER_NEAREST);
         // the normals buffer
-        fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
+        //fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
+        fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
         // a rgb buffer which could hold material properties
         //fbo->AddColorBuffer(ColorBufferObject::RGB_UBYTE, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);

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

@@ -213 +213 @@
 
                 // the filtered ssao value
-                ao.x = DiscontinuityFilter2(IN.texCoord, ao, col, ssaoTex, normalsTex, colorsTex, filterOffs, scale, bl, br, tl, tr);
+                //ao.x = DiscontinuityFilter2(IN.texCoord, ao, col, ssaoTex, normalsTex, colorsTex, filterOffs, scale, bl, br, tl, tr);
         }
 
@@ -221 +221 @@
                 OUT.illum_col.xyz = col.xyz;
 
+        //OUT.illum_col.xyz = float3(0, clamp(1.0f - ao.y * 1e-3f, 0, 1), 1);
+        //const float mydummy = ao.w * 1e-3f;
         OUT.illum_col.xyz = float3(ao.x, ao.x, ao.x);
         //OUT.illum_col.xyz = float3(0, clamp(1.0f - ao.y * 1e-3f, 0, 1), 1);

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 difVec = tex2Dlod(diffVals, float4(IN.texCoord, 0 ,0)).xyz;
 
@@ -303 +302 @@
 
         
-        float4 dummy;
-        //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;
+        /*float4 dummy;
+        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;
@@ -311 +310 @@
         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 = min(min(dummy.x, dummy.y), min(dummy.z, dummy.w));
         //color.w = max(max(dummy.x, dummy.y), max(dummy.z, dummy.w));
-        
+        */
+        
+        //const float3 normal = normalize(tex2Dlod(normalsTex, float4(IN.texCoord, 0 ,0)).xyz);
+
+        float3 dummy[4];
+        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[0] = tex2Dlod(normalsTex, float4(IN.texCoord + float2(xoffs, yoffs), 0, 0)).xyz;
+        dummy[1] = tex2Dlod(normalsTex, float4(IN.texCoord + float2(xoffs, -yoffs), 0, 0)).xyz;
+        dummy[2] = tex2Dlod(normalsTex, float4(IN.texCoord + float2(-xoffs, yoffs), 0, 0)).xyz;
+        dummy[3] = tex2Dlod(normalsTex, float4(IN.texCoord + float2(-yoffs, -yoffs), 0, 0)).xyz;
+        
+        float dot1 = dot(dummy[0], dummy[3]);
+        float dot2 = dot(dummy[1], dummy[2]);
+
+        float isEdge = step(.0f, dot1) * step(.0f, dot2);
+
+        const float3 normal = isEdge * normalize(dummy[0] + dummy[1] + dummy[2] + dummy[3]);
+
         // store scaled view vector so wie don't have to normalize for e.g., ssao
         color.w /= length(IN.view);

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

@@ -283 +283 @@
                 const float2 texcoord = IN.texCoord.xy + offsetTransformed * scaleFactor;
 
-                float4 sampleColor = tex2Dlod(colors, float4(texcoord, 0, 0));
+                const float4 sampleColor = tex2Dlod(colors, float4(texcoord, 0, 0));
                 const float3 samplePos = ReconstructSamplePos(sampleColor.w, texcoord, bl, br, tl, tr);
                 
@@ -291 +291 @@
 
                 float3 dirSample = samplePos - centerPosition;
-                const float lengthToSample = max(length(dirSample), 1e-6f);
+
+                const float sqrLen = max(SqrLen(dirSample), 1e-3f);
+                //const float lengthToSample = max(length(dirSample), 1e-2f);
+                const float lengthToSample = sqrt(sqrLen);
 
                 dirSample /= lengthToSample; // normalize
@@ -301 +304 @@
                 // the distance to a sample approaches zero
                 //const float aoContrib = SAMPLE_INTENSITY / (DISTANCE_SCALE + lengthToSample * lengthToSample);
-                const float aoContrib = SAMPLE_INTENSITY / max(1e-1f, lengthToSample * lengthToSample);
+                const float aoContrib = SAMPLE_INTENSITY / sqrLen;
                 //const float aoContrib = (1.0f > lengthToSample) ? occlusionPower(9e-2f, DISTANCE_SCALE + lengthToSample): .0f;