Changeset 3154

Timestamp:

11/23/08 21:31:29 (16 years ago)

Author:

mattausch

Message:

normal mappingt: first working version

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling

Files:

• VboFormatConverter/VboFormatConverter.cpp (modified) (3 diffs)
• src/Geometry.cpp (modified) (5 diffs)
• src/ResourceManager.cpp (modified) (1 diff)
• src/shaderenv.h (modified) (1 diff)
• src/shaders/antialiasing.cg (modified) (1 diff)
• src/shaders/deferred.cg (modified) (1 diff)
• src/shaders/normalMapping.cg (modified) (3 diffs)
• src/shaders/normalMappingFwd.cg (added)

GTP/trunk/App/Demos/Vis/FriendlyCulling/VboFormatConverter/VboFormatConverter.cpp

@@ -115 +115 @@
                 geom->mTangents[line].z = tangent.y;
 
-                geom->mTexcoords[line] = tex;
+                geom->mTexcoords[line].first = tex.first;
+                geom->mTexcoords[line].second = 1.0f - tex.second;
 
                 static int dummy = 0;
-
                 if (dummy ++ < 5) cout << "tangent: " << geom->mTangents[line] << endl;
                 ++ line;
@@ -176 +176 @@
 
                 ambient.x = ambient.y = ambient.z = 0.2f;
-                diffuse.x = 0.7f; diffuse.y = 0.4f; diffuse.z = 0.2f;
-                spec.x   = spec.y   = spec.z   =  .0f;
+                //diffuse.x = 0.7f; diffuse.y = 0.4f; diffuse.z = 0.2f;
+                diffuse.x = diffuse.y = diffuse.z = 1.0f;
+                spec.x = spec.y = spec.z = .0f;
                 emm = spec;
 
@@ -217 +218 @@
 
                 // set boundary to repeat
-                int boundS = 1; int boundT = 1;
+                int boundS, boundT;
+                boundS = boundT = 1;
                 
                 ofile.write(reinterpret_cast<char *>(&boundS), sizeof(int));

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

@@ -86 +86 @@
                         Vector3 normal =  Normalize(mNormals[i]);
 
-                        float dotProd = DotProd(tangent,normal);
-
-                        tangent -= normal * dotProd;
-                        tangent = Normalize(tangent);
+                        float dotProd = DotProd(tangent, normal);
+                        //tangent -= normal * dotProd;tangent = Normalize(tangent);
 
                         //mTangents[i] = tangent;
-                        mTangents[i] = Vector3(0,1,0);//tangent * 0.5f + Vector3(0.5f);
+                        mTangents[i] = tangent * 0.5f + Vector3(0.5f);
                 }
 
@@ -98 +96 @@
                         ((Vector3 *)data)[mNumVertices * 2 + i] = mTangents[i];
 
-                for (int i = 0; i < 3; ++ i)
-                        cout << ((Vector3 *)data)[mNumVertices * 2 + i] << " ";
-
                 currentPData += mNumVertices * 3;
         }
@@ -125 +120 @@
         if (mTangents)
         {
-                cout << "dotprods: " << endl;
-
-                for (int i = 0; i < 1000; ++ i)
+                //cout << "dotprods: " << endl;
+
+                /*for (int i = 0; i < 100; ++ i)
                 {
                         //cout << mTangents[i] << " " << mNormals[i] << " " << DotProd(Normalize(mTangents[i]), Normalize(mNormals[i])) << endl;
@@ -135 +130 @@
                 }
                 cout << endl;
+                */
         
+                for (int i = 0; i < 50; ++ i)
+                {
+                        cout << mTexCoords[i].first << "," << mTexCoords[i].second << " ";
+                }
+
                 glColorPointer(3, GL_FLOAT, 0, (char *)NULL + currentPVbo);
                 currentPVbo += mNumVertices * sizeof(Vector3);
@@ -159 +160 @@
         if (mHasTangents)
         {
-                cout<<"x";
                 glEnableClientState(GL_COLOR_ARRAY);
         }
+
         if (state->GetCurrentVboId() != mVboId)
         {

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

@@ -377 +377 @@
 
         const bool delGeometry = false;
-        return new Geometry(vertices, normals, texcoords, vertexCount, delGeometry, tangents);
+        return new Geometry(vertices, normals, texcoords, vertexCount, delGeometry, NULL);//tangents);
 }
 

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

@@ -13 +13 @@
 //#define SAMPLE_INTENSITY 0.07f
 
-#define SAMPLE_INTENSITY 0.075f
+//#define SAMPLE_INTENSITY 0.075f
+#define SAMPLE_INTENSITY 0.2f
 
 #define SAMPLE_RADIUS 8e-1f

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

@@ -97 +97 @@
         //float4 col = float4(w, w, w, 0);
         //float4 col = float4(centerNormal * 0.5f + float3(0.5f), 0);
+        //col = step(.0f, col);
         //float4 col = float4(centerNormal, 0);
 

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

@@ -74 +74 @@
         // store scaled view vector so wie don't have to normalize for e.g., ssao
         OUT.color.w = color.w;// / length(IN.view);
-        OUT.color = color;
+        //OUT.color = color;
         return OUT;
 }

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

@@ -64 +64 @@
         vtxout OUT;
 
-        //float4 tangent =  float4(IN.color.xyz * 2.0f - 1.0f, 1.0f);
-        //float4 tangent = float4(1,0,0,1);
-        float4 tangent = IN.color;
+        float4 tangent = float4(IN.color.xyz * 2.0f - float3(1.0f), 1.0f);
+        //float4 tangent = IN.color;
 
         //float4 tangent = IN.color;
@@ -79 +78 @@
         // transform the old vertex position into world space
         OUT.oldWorldPos = mul(oldModelMatrix, IN.position);
+
         // the normal has to be correctly transformed with the inverse transpose
+        // convert to view space
         OUT.normal = mul(glstate.matrix.invtrans.modelview[0], IN.normal);
-        OUT.tangent = tangent;//mul(glstate.matrix.invtrans.modelview[0], tangent); 
-
-        //OUT.bitangent = float4(cross(IN.color.xyz, IN.normal.xyz), 1);
-        //OUT.bitangent = float4(cross(OUT.tangent.xyz, OUT.normal.xyz), 1);
-        OUT.bitangent = float4(cross(OUT.normal.xyz, tangent.xyz), 1);
+        OUT.tangent = mul(glstate.matrix.invtrans.modelview[0], tangent); 
+        
+        OUT.bitangent = float4(cross(OUT.tangent.xyz, OUT.normal.xyz), 1);
+        //OUT.bitangent = float4(cross(OUT.normal.xyz, OUT.tangent.xyz), 1);
 
         return OUT;
@@ -111 +111 @@
         pix.offsVec = IN.oldWorldPos.xyz - IN.worldPos.xyz;
 
-        // compute tanget space in world space => transform basis vectors back into world space by
-        // multiplying with inverse view. since transforming normal with T means to 
+        // compute tanget space to world space trafo =>
+        // transform basis vectors back into world space by multiplying with inverse view. 
+        // since transforming normal with T means to 
         // multiply with the inverse transpose of T, we multiple with 
         // Transp(Inv(Inv(view))) = Transp(view)
-        float3 normal = mul(transpose(viewMatrix), IN.normal).xyz;
-        float3 tangent = mul(transpose(viewMatrix), IN.tangent).xyz;
-        float3 bitangent = mul(transpose(viewMatrix), IN.bitangent).xyz;
+        const float3 normal = normalize(mul(transpose(viewMatrix), IN.normal).xyz);
+        const float3 tangent = normalize(mul(transpose(viewMatrix), IN.tangent).xyz);
+        const float3 bitangent = normalize(mul(transpose(viewMatrix), IN.bitangent).xyz);
 
         // compute tangent space - world space transform which is the transpose,
         // as it is the inverse of a rotation matrix 
-        float3x3 tangToWorldTrafo = transpose(float3x3(IN.tangent.xyz, IN.bitangent.xyz, IN.normal.xyz));
-        const float3 tangentSpaceNorm = normalize(tex2Dlod(normalMap, float4(IN.texCoord.xy, 0, 0)).xyz);
-        //const float3 tangentSpaceNorm = tex2D(normalMap, IN.texCoord.xy).xyz;
+        float3x3 tangToWorldTrafo = transpose(float3x3(tangent, bitangent, normal));
+        //float3x3 tangToWorldTrafo = transpose(float3x3(bitangent, tangent, normal));
+        //float3x3 tangToWorldTrafo = transpose(float3x3(tangent, normal, bitangent));
+        //float3x3 tangToWorldTrafo = transpose(float3x3(normal, bitangent, tangent));
+        //float3x3 tangToWorldTrafo = transpose(float3x3(normal, tangent, bitangent));
 
-        pix.normal = mul(tangToWorldTrafo, tangentSpaceNorm);
+        const float3 tangentSpaceNorm = tex2Dlod(normalMap, float4(IN.texCoord.xy, 0, 0)).xyz * 2.0f - float3(1.0f);
+        //const float3 tangentSpaceNorm = float3(0, 1, 0);
+        //const float3 tangentSpaceNorm = float3(0, 0, 1);
+        
+        pix.normal = normalize(mul(tangToWorldTrafo, tangentSpaceNorm));
+        //pix.normal = normalize(tangentSpaceNorm);
         //pix.color.xyz = float3(abs(dot(tangent.xyz, normal.xyz)));
+        //pix.color.xyz = float3(abs(dot(bitangent.xyz, tangent.xyz)));
         //pix.color.xyz = float3(abs(dot(normalize(IN.normal.xyz), normalize(IN.tangent.xyz))));
-        pix.color.xyz = float3(abs(dot(IN.normal.xyz, IN.tangent.xyz)));
+        //pix.color.xyz = float3(abs(dot(IN.normal.xyz, IN.tangent.xyz)));
         //pix.color.xyz = normal.xyz;
-        pix.color.xyz = IN.tangent.xyz;
-
+        //pix.color.xyz = IN.tangent.xyz;
+        //pix.color.xyz = float3(IN.texCoord.x,0,0);
+        //pix.color.xyz = float3(0,IN.texCoord.y,0);
+        
         return pix;
 }