Changeset 3094 for GTP

Timestamp:

11/03/08 18:41:06 (16 years ago)

Author:

mattausch

Message:

some error with reprojection when moving

Location:

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

Files:

• DeferredRenderer.cpp (modified) (12 diffs)
• shaders/globillum.cg (modified) (3 diffs)
• shaders/ssao.cg (modified) (14 diffs)

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

@@ -257 +257 @@
         //-- the flip-flop fbos
 
-//      mIllumFbo = new FrameBufferObject(w / 2, h / 2, FrameBufferObject::DEPTH_NONE);
-        mIllumFbo = new FrameBufferObject(w, h, FrameBufferObject::DEPTH_NONE);
+        mIllumFbo = new FrameBufferObject(w / 2, h / 2, FrameBufferObject::DEPTH_NONE);
+        //mIllumFbo = new FrameBufferObject(w, h, FrameBufferObject::DEPTH_NONE);
+
         mFBOs.push_back(mIllumFbo);
 
@@ -267 +268 @@
         }
 
-        //mDownSampleFbo = new FrameBufferObject(w / 2, h / 2, FrameBufferObject::DEPTH_NONE);
-        mDownSampleFbo = new FrameBufferObject(w, h, FrameBufferObject::DEPTH_NONE);
+        mDownSampleFbo = new FrameBufferObject(w / 2, h / 2, FrameBufferObject::DEPTH_NONE);
+        //mDownSampleFbo = new FrameBufferObject(w, h, FrameBufferObject::DEPTH_NONE);
         mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
         // downsample buffer for the normal texture
@@ -328 +329 @@
         sCgSsaoProgram->AddParameter("oldTex", i ++);
         sCgSsaoProgram->AddParameter("noiseTex", i ++);
-        sCgSsaoProgram->AddParameter("eyePos", i ++);
         sCgSsaoProgram->AddParameter("temporalCoherence", i ++);
         sCgSsaoProgram->AddParameter("samples", i ++);
@@ -350 +350 @@
         sCgGiProgram->AddParameter("oldSsaoTex", i ++);
         sCgGiProgram->AddParameter("oldIllumTex", i ++);
-        sCgGiProgram->AddParameter("eyePos", i ++);
         sCgGiProgram->AddParameter("temporalCoherence", i ++);
         sCgGiProgram->AddParameter("samples", i ++);
@@ -540 +539 @@
         sCgSsaoProgram->SetTexture(3, noiseTex);
 
-        //sCgSsaoProgram->SetValue3f(4, mEyePos.x, mEyePos.y, mEyePos.z);
-        sCgSsaoProgram->SetValue3f(4, 0, 0, 0);
-
-        sCgSsaoProgram->SetValue1f(5, (mUseTemporalCoherence && !mRegenerateSamples) ? tempCohFactor : 0);
+        sCgSsaoProgram->SetValue1f(4, (mUseTemporalCoherence && !mRegenerateSamples) ? tempCohFactor : 0);
         
         if (mUseTemporalCoherence || mRegenerateSamples)
@@ -553 +549 @@
                 // needs longer to converge
                 GenerateSamples(mSamplingMethod); 
-                sCgSsaoProgram->SetArray2f(6, (float *)samples2, NUM_SAMPLES);
+                sCgSsaoProgram->SetArray2f(5, (float *)samples2, NUM_SAMPLES);
         }
         
@@ -561 +557 @@
         Vector3 tr = mCornersView[3];
 
-        sCgSsaoProgram->SetValue3f(7, bl.x, bl.y, bl.z);
-        sCgSsaoProgram->SetValue3f(8, br.x, br.y, br.z);
-        sCgSsaoProgram->SetValue3f(9, tl.x, tl.y, tl.z);
-        sCgSsaoProgram->SetValue3f(10, tr.x, tr.y, tr.z);
-
-        //cout << "new projview:\n" << projViewMatrix << endl;
-        //cout << "old projview:\n" << oldProjViewMatrix << endl;
-
-        sCgSsaoProgram->SetMatrix(11, mProjViewMatrix);
-        sCgSsaoProgram->SetMatrix(12, mOldProjViewMatrix);
+        sCgSsaoProgram->SetValue3f(6, bl.x, bl.y, bl.z);
+        sCgSsaoProgram->SetValue3f(7, br.x, br.y, br.z);
+        sCgSsaoProgram->SetValue3f(8, tl.x, tl.y, tl.z);
+        sCgSsaoProgram->SetValue3f(9, tr.x, tr.y, tr.z);
+
+        sCgSsaoProgram->SetMatrix(10, mProjViewMatrix);
+        sCgSsaoProgram->SetMatrix(11, mOldProjViewMatrix);
 
         bl = mOldCornersView[0];
@@ -578 +571 @@
 
         Vector3 d = mOldEyePos - mEyePos;
-
-        //sCgSsaoProgram->SetValue3f(13, mOldEyePos.x, mOldEyePos.y, mOldEyePos.z);
-        sCgSsaoProgram->SetValue3f(13, d.x, d.y, d.z);
-        sCgSsaoProgram->SetValue3f(14, bl.x, bl.y, bl.z);
-        sCgSsaoProgram->SetValue3f(15, br.x, br.y, br.z);
-        sCgSsaoProgram->SetValue3f(16, tl.x, tl.y, tl.z);
-        sCgSsaoProgram->SetValue3f(17, tr.x, tr.y, tr.z);
+        //Vector3 d = mEyePos - mOldEyePos;
+
+        sCgSsaoProgram->SetValue3f(12, d.x, d.y, d.z);
+        sCgSsaoProgram->SetValue3f(13, bl.x, bl.y, bl.z);
+        sCgSsaoProgram->SetValue3f(14, br.x, br.y, br.z);
+        sCgSsaoProgram->SetValue3f(15, tl.x, tl.y, tl.z);
+        sCgSsaoProgram->SetValue3f(16, tr.x, tr.y, tr.z);
 
         DrawQuad(sCgSsaoProgram);
@@ -692 +685 @@
         sCgGiProgram->SetTexture(4, oldIllumTex);
 
-        sCgGiProgram->SetValue3f(5, mEyePos.x, mEyePos.y, mEyePos.z);
-
-
-        sCgGiProgram->SetValue1f(6, 
+        sCgGiProgram->SetValue1f(5, 
                 (mUseTemporalCoherence && !mRegenerateSamples) ? tempCohFactor : 0);
 
@@ -707 +697 @@
                 GenerateSamples(mSamplingMethod); 
 
-                sCgGiProgram->SetArray2f(7, (float *)samples2, NUM_SAMPLES);
+                sCgGiProgram->SetArray2f(6, (float *)samples2, NUM_SAMPLES);
         }
 
@@ -715 +705 @@
         Vector3 tr = mCornersView[3];
 
-        sCgGiProgram->SetValue3f(8, bl.x, bl.y, bl.z);
-        sCgGiProgram->SetValue3f(9, br.x, br.y, br.z);
-        sCgGiProgram->SetValue3f(10, tl.x, tl.y, tl.z);
-        sCgGiProgram->SetValue3f(11, tr.x, tr.y, tr.z);
-
-        sCgGiProgram->SetMatrix(12, mOldProjViewMatrix);
-        sCgGiProgram->SetMatrix(13, mProjViewMatrix);
+        sCgGiProgram->SetValue3f(7, bl.x, bl.y, bl.z);
+        sCgGiProgram->SetValue3f(8, br.x, br.y, br.z);
+        sCgGiProgram->SetValue3f(9, tl.x, tl.y, tl.z);
+        sCgGiProgram->SetValue3f(10, tr.x, tr.y, tr.z);
+
+        sCgGiProgram->SetMatrix(11, mOldProjViewMatrix);
+        sCgGiProgram->SetMatrix(12, mProjViewMatrix);
 
 
@@ -825 +815 @@
         sCgDeferredShadowProgram->SetTexture(2, shadowTex);
         sCgDeferredShadowProgram->SetTexture(3, noiseTex);
-
         sCgDeferredShadowProgram->SetMatrix(4, shadowMatrix);
-
         sCgDeferredShadowProgram->SetValue1f(5, 2.0f / shadowMap->GetSize());
 
         const Vector3 lightDir = -light->GetDirection();
         sCgDeferredShadowProgram->SetValue3f(6, lightDir.x, lightDir.y, lightDir.z);
-
         sCgDeferredShadowProgram->SetValue3f(7, mEyePos.x, mEyePos.y, mEyePos.z);
 

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

@@ -158 +158 @@
                    const uniform float4x4 modelViewProj,
                    uniform float temporalCoherence,
-                   uniform float3 eyePos,
                    uniform float3 bl,
                    uniform float3 br,
@@ -177 +176 @@
         const float eyeDepth = tex2Dlod(colors, float4(IN.texCoord, 0, 0)).w;
         
-        const float3 eyeSpacePos = -viewDir * eyeDepth;
-
-        const float4 worldPos = float4(eyePos + eyeSpacePos, 1.0f);
+        const float4 eyeSpacePos = float4(-viewDir * eyeDepth, 1.0f);
 
         // calculcate the current projected depth for next frame
-        float4 currentPos = mul(modelViewProj, worldPos);
+        float4 currentPos = mul(modelViewProj, eyeSpacePos);
 
         const float w = SAMPLE_RADIUS / currentPos.w;
@@ -200 +197 @@
         // reprojection new frame into old one 
         // calculate projected depth
-        float4 projPos = mul(oldModelViewProj, worldPos);
+        float4 projPos = mul(oldModelViewProj, eyeSpacePos);
         projPos /= projPos.w;
 

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

@@ -73 +73 @@
                                                            uniform float3 tr, 
                                                            float2 texcoord0,
-                                                           float3 eyePos,
                                                            float3 oldEyePos,
                                                            uniform float3 oldbl,
@@ -87 +86 @@
         float2 texCoord = texcoord0 + offsetTransformed * scaleFactor;
         //texCoord.x += 0.5f / 1024.0f; texCoord.y += 0.5f / 768.0f;
-        const float3 samplePos = ReconstructSamplePos(colors, texCoord, bl, br, tl, tr) + eyePos;
+        const float3 samplePos = ReconstructSamplePos(colors, texCoord, bl, br, tl, tr);
 
         // reproject into old frame and calculate projected depth
@@ -114 +113 @@
         as well as a boolean that 
 */
-float4 temporalSmoothing(float4 currentProjPos,
-                                                 float4 worldPos,
+float4 temporalSmoothing(float4 eyeSpacePos,
                                                  uniform sampler2D oldTex,
                                                  const uniform float4x4 oldModelViewProj,
@@ -129 +127 @@
                                                  uniform float3 tr, 
                                                  float2 texcoord0,
-                                                 float3 eyePos,
                                                  float eyeSpaceDepth,
                                                  float3 oldEyePos,
@@ -151 +148 @@
 
         // reproject into old frame and calculate projected depth
-        float4 backProjPos = mul(oldModelViewProj, worldPos);
+        float4 backProjPos = mul(oldModelViewProj, eyeSpacePos);
         backProjPos /= backProjPos.w;
         // fit from unit cube into 0 .. 1
@@ -162 +159 @@
 
         const float oldEyeSpaceDepth = oldCol.w;
-        //oldTexCoords.x += 0.5f / 1024.0f; oldTexCoords.y += 0.5f / 768.0f;
 
         float3 viewVec = Interpol(oldTexCoords, oldbl, oldbr, oldtl, oldtr);
-        //float3 oldSamplePos = -viewVec * eyeSpaceDepth + oldEyePos;
-        float3 oldSamplePos = oldEyePos - viewVec * oldEyeSpaceDepth;
-
-        const float depthDif = length(oldSamplePos - worldPos.xyz);
-        const float dummy5 = abs(oldEyeSpaceDepth - eyeSpaceDepth);
-        //const float dummy5 = length(oldTexCoords - texcoord0) * 1e5f;
-        //const float dummy5 = depthDif;
+        float3 oldEyeSpacePos = oldEyePos - viewVec * oldEyeSpaceDepth;
+
+        const float depthDif = length(oldEyeSpacePos - eyeSpacePos.xyz);
 
         float notValid = 0.5f;
 
-        for (int i = 0; i < NUM_SAMPLES; ++ i) 
+        /*for (int i = 0; i < NUM_SAMPLES; ++ i) 
         {
                 float sampleDif = ComputeDifference(samples[i],
@@ -185 +177 @@
                                                           bl, br, tl, tr, 
                                                           texcoord0,
-                                                          eyePos,
                                                           oldEyePos,
                                                           oldbl, oldbr, oldtl, oldtr,
-                                                          worldPos.xyz);
+                                                          eyePos.xyz);
 
                 if (sampleDif >= 1e-1f) ++ notValid;
-        }
+        }*/
 
         //if (notValid < 1.0f) temporalCoherence = 4.0f;
@@ -213 +204 @@
                 newWeight = oldWeight + 1.0f;
                 illum_col.x = (ao.x + oldCol.x * oldWeight) / newWeight;
-                if (notValid > 1.0f) newWeight = 2;
+                if (notValid > 1.0f) newWeight = 2.0f;
         }
         else
@@ -223 +214 @@
         illum_col.y = newWeight;
         illum_col.w = eyeSpaceDepth;
-        //illum_col.y = dummy5;
+        
 
         return illum_col;
@@ -270 +261 @@
 
                 //if ((texcoord.x <= 1.0f) && (texcoord.x >= 0.0f) && (texcoord.y <= 1.0f) && (texcoord.y >= 0.0f)) ++ numSamples;
-
                 const float3 samplePos = ReconstructSamplePos(colors, texcoord, bl, br, tl, tr);
 
@@ -316 +306 @@
                    uniform float4x4 oldModelViewProj,
                    uniform float temporalCoherence,
-                   uniform float3 eyePos,
                    uniform float3 bl,
                    uniform float3 br,
@@ -335 +324 @@
         const float3 viewDir = IN.view;
         const float eyeSpaceDepth = tex2Dlod(colors, float4(IN.texCoord, 0, 0)).w;
-        const float3 eyeSpacePos = -viewDir * eyeSpaceDepth;
-        const float4 worldPos = float4(eyePos + eyeSpacePos, 1.0f);
+        const float4 eyeSpacePos = float4(-viewDir * eyeSpaceDepth, 1);
 
 
@@ -342 +330 @@
         //-- calculcate the current projected posiion (also used for next frame)
         
-        float4 projPos = mul(modelViewProj, worldPos);
+        float4 projPos = mul(modelViewProj, eyeSpacePos);
+        float w = SAMPLE_RADIUS / projPos.w;
         
-        float w = 1.0f / projPos.w;
-        projPos *= w;
-        w *= SAMPLE_RADIUS;
-        
-        const float2 ao = ssao(IN, colors, noiseTex, samples, normal, eyeSpacePos, w, bl, br, tl, tr, normalize(viewDir));
+        const float2 ao = ssao(IN, colors, noiseTex, samples, normal, eyeSpacePos.xyz, w, bl, br, tl, tr, normalize(viewDir));
 
 
@@ -354 +339 @@
         //-- compute temporally smoothing
         
-        OUT.illum_col = temporalSmoothing(projPos, worldPos, oldTex, oldModelViewProj, temporalCoherence, ao,
-                                              samples, colors, noiseTex, w, bl, br, tl, tr, IN.texCoord, eyePos, eyeSpaceDepth,
+        OUT.illum_col = temporalSmoothing(eyeSpacePos, oldTex, oldModelViewProj, temporalCoherence, ao,
+                                              samples, colors, noiseTex, w, bl, br, tl, tr, IN.texCoord, eyeSpaceDepth,
                                                                           oldEyePos, oldbl, oldbr, oldtl, oldtr);