Changeset 3306 for GTP

Timestamp:

02/12/09 18:28:32 (15 years ago)

Author:

mattausch

Message:

found error with border

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling

Files:

• src/DeferredRenderer.cpp (modified) (2 diffs)
• src/chcdemo.cpp (modified) (2 diffs)
• src/shaderenv.h (modified) (2 diffs)
• src/shaders/combineSsaoSep.cg (modified) (2 diffs)
• src/shaders/deferred.cg (modified) (3 diffs)
• src/shaders/ssao.cg (modified) (2 diffs)
• vienna.env (modified) (1 diff)

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

@@ -81 +81 @@
 // dof samples
 static Sample2 dofSamples[NUM_DOF_TABS];
-
-
-static float ssaoFilterOffsets[NUM_SSAO_FILTER_SAMPLES * 2];
-static float ssaoFilterWeights[NUM_SSAO_FILTER_SAMPLES];
 
 static Texture *sHaloTex[5];
@@ -350 +346 @@
         mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
 
-
         for (int i = 0; i < 2; ++ i)
         {

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

@@ -625 +625 @@
         if (0) LoadPompeiiFloor();
 
-#if 1
+#if 0
         const Vector3 sceneCenter(470.398f, 240.364f, 181.7f);
         //const Vector3 sceneCenter(470.398f, 240.364f, 180.3);
@@ -1573 +1573 @@
                 cout << "new ssao sample intensity: " << ssaoSampleIntensity << endl;
                 break;
-        /*case 'o':
-                if (ssaoFilterRadius >= 0.0f) ssaoFilterRadius -= 1.0f;
-                if (deferredShader) deferredShader->SetSsaoFilterRadius(ssaoFilterRadius);
-                cout << "new ssao filter radius: " << ssaoFilterRadius << endl;
-                break;
-        case 'O':
-                ssaoFilterRadius += 1.0f;
-                if (deferredShader) deferredShader->SetSsaoFilterRadius(ssaoFilterRadius);
-                cout << "new ssao filter radius: " << ssaoFilterRadius << endl;
-                break;*/
         /*      case 'o':
         case 'O':

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

@@ -10 +10 @@
 //#define NUM_SAMPLES 24
 #define NUM_SAMPLES 48
+//#define NUM_SAMPLES 16
 
+//#define MIN_SAMPLES 48
 #define MIN_SAMPLES 8
 
@@ -19 +21 @@
 /// scale factor that takes angle of sample normal into account 
 #define VIEW_CORRECTION_SCALE 1.0f
-
-//#define NUM_SSAO_FILTER_SAMPLES 13 // 7x7
-#define NUM_SSAO_FILTER_SAMPLES 9
-//#define NUM_SSAO_FILTER_SAMPLES 5
 
 #define SSAO_CONVERGENCE_THRESHOLD 700.0f

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

@@ -166 +166 @@
 
         OUT.illum_col = tex2Dlod(ssaoTex, float4(IN.texCoord, 0, 0));
-        // just take unfiltered convergence in current pixel
+        // compute minimal convergence for savetly reasons, write it out
         const float convergence = ComputeConvergenceHalfRes(ssaoTex, IN.texCoord, res * 0.5f);
+        OUT.illum_col.y = convergence;
 
         const float2 xyStep = float2(1.0f / res.x, 0);
@@ -221 +222 @@
         if (depth < DEPTH_THRESHOLD)
         {
-                OUT.illum_col.xyz = col.xyz * max(2e-2f, 1.0f - ao.x);
-                //OUT.illum_col.xyz = col.xyz * ao.x;
+                //OUT.illum_col.xyz = col.xyz * max(2e-2f, 1.0f - ao.x);
+                OUT.illum_col.xyz = max(2e-2f, 1.0f - ao.x);
         }
         else

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

@@ -231 +231 @@
         // compute position from old frame for dynamic objects + translational portion
         //const float3 translatedPos = difVec - oldEyePos + worldPos.xyz;
+        // don't use difVec here: want to detect if the actual pixel has changed => ssao changed
         const float3 translatedPos = -oldEyePos + worldPos.xyz;
 
@@ -259 +260 @@
         
         // test if this pixel was valid in the old frame
-        float pixelValid;
-
+        float IsPixelValid;
+
+        // check if the pixel belonged to a dyanmic object in the last frame
         const bool oldDynamic = (squaredLen > DYNAMIC_OBJECTS_THRESHOLD);
         const bool newDynamic = (oldPixel.z > DYNAMIC_OBJECTS_THRESHOLD);
@@ -270 +272 @@
         const float pixelCouldBeValid = 2.0f;
         // this pixel information has to be discarded in order to not create artifacts
-        const float pixelNotValid = 10.0f;
-
-        if ((oldTexCoords.x < .0f) || (oldTexCoords.x >= 1.0f) || 
-                (oldTexCoords.y < .0f) || (oldTexCoords.y >= 1.0f))
+        const float pixelIsNotValid = 100.0f;
+
+        const float xOffs = 0;// 0.5f / 1024.0f;
+        const float yOffs = 0;// 0.5f / 768.0f;
+
+        if ((oldTexCoords.x < xOffs) || (oldTexCoords.x > (1.0f - xOffs)) || 
+                (oldTexCoords.y < yOffs) || (oldTexCoords.y > (1.0f - yOffs))
+                )
         {
-                pixelValid = pixelNotValid;
-        }
-        else if (//!((oldEyeSpaceDepth > DEPTH_THRESHOLD) || (projectedEyeSpaceDepth > DEPTH_THRESHOLD)) &&
-                // check if changed from dynamic to not dynamic object
+                IsPixelValid = pixelIsNotValid;
+        }
+        else if (// check if changed from dynamic to not dynamic object
                 ((oldDynamic && !newDynamic) || (!oldDynamic && newDynamic) ||
-                // check if we have a dynamic object and is a depth discontinuity
                 (
+                (oldEyeSpaceDepth < DEPTH_THRESHOLD) && (projectedEyeSpaceDepth < DEPTH_THRESHOLD) &&
+                // check if we have a dynamic object 
                 (oldDynamic || newDynamic) && 
-                //(depthDif > 1e-5f))))
+                // and is a depth discontinuity
                 (depthDif > MIN_DEPTH_DIFF))))
         {       
-                pixelValid = pixelCouldBeValid; 
+                IsPixelValid = pixelCouldBeValid; 
         }
         else 
         {
-                pixelValid = pixelIsValid;
-        }
-
-        return float2(pixelValid, abs(oldEyeSpaceDepth - projectedEyeSpaceDepth));
+                IsPixelValid = pixelIsValid;
+        }
+
+        return float2(IsPixelValid, abs(oldEyeSpaceDepth - projectedEyeSpaceDepth));
 }
 

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

@@ -295 +295 @@
                 // to have any influence in the current or last frame
                 const float tooFarAway = step(0.5f, lengthToSample - changeFactor);
-                validSamples = max(validSamples, (1.0f - tooFarAway) * pixelValid * step(-0.1f, cosAngle));
+                //validSamples = max(validSamples, (1.0f - tooFarAway) * pixelValid * step(-0.1f, cosAngle));
+                validSamples = max(validSamples, pixelValid);
 
 #ifdef USE_GTX
@@ -415 +416 @@
 
         // completely reset the ao in this pixel
-        const float completelyResetThres = 4.0f;
+        const float completelyResetThres = 20.0f;
         // don't fully reset the ao in this pixel, but give low weight to old solution
         const float partlyResetThres = 1.0f;
         
-        if (!isMovingObject)
+        if (1)//!isMovingObject)
         {
                 if (ao.y > completelyResetThres) 

GTP/trunk/App/Demos/Vis/FriendlyCulling/vienna.env

@@ -115 +115 @@
 tempCohFactor=2000.0f
 # ssao filter radius
-ssaoFilterRadius=12.0f
+ssaoFilterRadius=3.0f