Changeset 2817 for GTP/trunk/App/Demos/Vis/FriendlyCulling

Timestamp:

07/04/08 15:40:05 (16 years ago)

Author:

mattausch

Message:

 

Location:

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

Files:

• ResourceManager.cpp (modified) (1 diff)
• Texture.cpp (modified) (1 diff)
• chcdemo.cpp (modified) (11 diffs)
• shaders/deferred.cg (modified) (4 diffs)

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

@@ -175 +175 @@
         }
 
-        for (int i = 0; i < vertexCount; i += 3)
-        {
-                Triangle3 tri(vertices[i], vertices[i + 1], vertices[i + 2]);
-                Vector3 n = tri.GetNormal();
-                normals[i + 0] = n;
-                normals[i + 1] = n;
-                normals[i + 2] = n;
-        }
-
         return new Geometry(vertices, normals, texcoords, vertexCount, true);
 }

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

@@ -107 +107 @@
 Texture::~Texture()
 {
+        glDeleteTextures(1, &mTexId);
         free(mImage);
 }

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

@@ -146 +146 @@
 
 static Vector3 samples[32];
-
+GLubyte *randomNormals;
 
 // function forward declarations
@@ -527 +527 @@
         glGenRenderbuffersEXT(1, &positionsBuffer);
         glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, positionsBuffer);
-        glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA32F_ARB, texWidth, texHeight);
-        //glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples, GL_RGBA32F_ARB, texWidth, texHeight);
+        //glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA32F_ARB, texWidth, texHeight);
+        glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples, GL_RGBA32F_ARB, texWidth, texHeight);
         
         glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_RENDERBUFFER_EXT, positionsBuffer);
@@ -535 +535 @@
         glBindTexture(GL_TEXTURE_2D, positionsTex);
         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB,  texWidth, texHeight, 0, GL_RGBA, GL_FLOAT, NULL);
-        glGenerateMipmapEXT(GL_TEXTURE_2D);
+        //glGenerateMipmapEXT(GL_TEXTURE_2D);
         glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, positionsTex, 0);
 
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-
-        //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-        //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
         PrintFBOStatus(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
@@ -559 +559 @@
         glBindTexture(GL_TEXTURE_2D, normalsTex);
         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB,  texWidth, texHeight, 0, GL_RGBA, GL_FLOAT, NULL);
-        glGenerateMipmapEXT(GL_TEXTURE_2D);
+        //glGenerateMipmapEXT(GL_TEXTURE_2D);
         glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL_TEXTURE_2D, normalsTex, 0);
 
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
@@ -1452 +1452 @@
         if (sCgContext)
                 cgDestroyContext(sCgContext);
+
+        glDeleteFramebuffersEXT(1, &fbo);
+        glDeleteRenderbuffersEXT(1, &depthBuffer);
+        glDeleteRenderbuffersEXT(1, &colorsBuffer);
+        glDeleteRenderbuffersEXT(1, &normalsBuffer);
+        glDeleteRenderbuffersEXT(1, &positionsBuffer);
+
+        glDeleteTextures(1, &colorsTex);
+        glDeleteTextures(1, &normalsTex);
+        glDeleteTextures(1, &positionsTex);
+        glDeleteTextures(1, &noiseTex);
 }
 
@@ -1629 +1640 @@
         glLoadIdentity();
 
-        glOrtho(-0.5f, 0.5f, -0.5f, 0.5f, 0, 1);
+        const float offs = 0.5f;
+        //glPushAttrib(GL_VIEWPORT_BIT);
+        //glViewport(-offs, texHeight);
+        glOrtho(-offs, offs, -offs, offs, 0, 1);
         
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@@ -1655 +1669 @@
         glBegin(GL_QUADS);
 #if 1
-        glColor3f(bl.x, bl.y, bl.z); glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);
-        glColor3f(br.x, br.y, br.z); glTexCoord2f(1, 0); glVertex3f( 1, -1, -0.5f);
-        glColor3f(tr.x, tr.y, tr.z); glTexCoord2f(1, 1); glVertex3f( 1,  1, -0.5f);
-        glColor3f(tl.x, tl.y, tl.z); glTexCoord2f(0, 1); glVertex3f(-1,  1, -0.5f);
+        // slightly larger than screen size in order to hide ambient occlusion errors
+        float offs2 = 0.55f;
+        //float offs2 = 0.5f;
+
+        glColor3f(bl.x, bl.y, bl.z); glTexCoord2f(0, 0); glVertex3f(-offs2, -offs2, -0.5f);
+        glColor3f(br.x, br.y, br.z); glTexCoord2f(1, 0); glVertex3f( offs2, -offs2, -0.5f);
+        glColor3f(tr.x, tr.y, tr.z); glTexCoord2f(1, 1); glVertex3f( offs2,  offs2, -0.5f);
+        glColor3f(tl.x, tl.y, tl.z); glTexCoord2f(0, 1); glVertex3f(-offs2,  offs2, -0.5f);
 #else
         glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);
@@ -1727 +1745 @@
         tl = tl * 0.5f + 0.5f;
         tr = tr * 0.5f + 0.5f;
-
-/*
-        cout << "tl: " << tl << endl;
-        cout << "tr: " << tr << endl;
-        cout << "bl: " << bl << endl;
-        cout << "br: " << bl << endl << endl;
-        */
-}
-
-
-void CreateNoiseTex3D()
-{
-        Vector3 *data = new Vector3[texWidth * texHeight];
-
-        for (int i = 0; i < texWidth * texHeight; ++ i)
-        {
-                // create random samples over sphere
-                const float rx = RandomValue(0, 1);
-                const float ry = RandomValue(0, 1);
-
-                const float theta = 2.0f * acos(sqrt(1.0f - rx));
-                const float phi = 2.0f * M_PI * ry;
-
-                data[i] = Vector3(sin(theta) * cos(phi), sin(theta) * sin(phi), cos(theta));
-                // bring in 0 .. 1 so we can use unsigned byte
-                data[i] = data[i] * 0.5f + 0.5f;
-        }
-
-        glGenTextures(1, &noiseTex);
-        glBindTexture(GL_TEXTURE_2D, noiseTex);
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8,  texWidth, texHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-        glBindTexture(GL_TEXTURE_2D, 0);
-
-        PrintGLerror("noisetexture");
-}
-
-#if 0
+}
+
+
 void CreateNoiseTex2D()
 {
-        Vector3 *data = new Vector3[texWidth * texHeight];
-
-        for (int i = 0; i < texWidth * texHeight; ++ i)
+        randomNormals = new GLubyte[texWidth * texHeight * 4];
+
+        for (int i = 0; i < texWidth * texHeight * 4; i += 4)
         {
                 // create random samples over sphere
@@ -1777 +1758 @@
                 const float theta = 2.0f * acos(sqrt(1.0f - rx));
 
-                data[i] = Vector3(sin(theta), cos(theta), 0);
-
-                //if (i % 10000) cout << "vec: " << data[i] << endl;
-        
-                // bring in 0 .. 1 so we could use unsigned byte
-                data[i] = 1;//data[i] * 0.5f + 0.5f;
-        }
-
-        glGenTextures(1, &noiseTex);
-        glBindTexture(GL_TEXTURE_2D, noiseTex);
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F_ARB, texWidth, texHeight, 0, GL_RGB, GL_FLOAT, (float *)data);
-        
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-        glBindTexture(GL_TEXTURE_2D, 0);
-
-        PrintGLerror("noisetexture");
-}
-
-#else
-void CreateNoiseTex2D()
-{
-        GLubyte *data = new GLubyte[texWidth * texHeight * 4];
-
-        for (int i = 0; i < texWidth * texHeight * 4; i += 4)
-        {
-                // create random samples over sphere
-                const float rx = RandomValue(0, 1);
-                const float theta = 2.0f * acos(sqrt(1.0f - rx));
-
-                data[i + 0] = (GLubyte)((cos(theta) * 0.5f + 0.5f) * 255.0f);
-                data[i + 1] = (GLubyte)((sin(theta) * 0.5f + 0.5f) * 255.0f);
-                data[i + 2] = 0;
-                data[i + 3] = 255;
-
-                //if (i % 100000) cout << "vec: " << " " << (int)data[i] << " " << (int)data[i + 1] << endl;
+                randomNormals[i + 0] = (GLubyte)((cos(theta) * 0.5f + 0.5f) * 255.0f);
+                randomNormals[i + 1] = (GLubyte)((sin(theta) * 0.5f + 0.5f) * 255.0f);
+                randomNormals[i + 2] = 0;
+                randomNormals[i + 3] = 255;
         }
 
@@ -1822 +1767 @@
         glGenTextures(1, &noiseTex);
         glBindTexture(GL_TEXTURE_2D, noiseTex);
-        //glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
 
-        gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, texWidth, texHeight, GL_RGBA, GL_UNSIGNED_BYTE, data);
-        //glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, texWidth, texHeight, GL_RGBA, GL_UNSIGNED_BYTE, randomNormals);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 
         glBindTexture(GL_TEXTURE_2D, 0);
-
         glDisable(GL_TEXTURE_2D);
 
@@ -1839 +1781 @@
         PrintGLerror("noisetexture");
 }
-#endif

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

@@ -79 +79 @@
 
   //const float areaSize = 5e-1f;
-  const float areaSize = 2e-1f;
-  const float sampleIntensity = 0.1f;
+  const float areaSize = 3e-1f;
+  const float sampleIntensity = 0.2f;
   
   for (int i = 0; i < SAMPLES; i ++) {
@@ -130 +130 @@
   pixel OUT;
 
-  float4 lightDir = float4(0.8f, 1.0f, 1.5f, 0.0f);
+  float4 lightDir = float4(0.8f, -1.0f, 0.7f, 0.0f);
   float4 lightDir2 = float4(-0.5f, 0.5f, 0.4f, 0.0f);
   
@@ -145 +145 @@
   // float3 L = normalize(lightPosition - position);
   float3 light = normalize(lightDir.xyz);
-  float3 light2 = normalize(lightDir.xyz);
+  float3 light2 = normalize(lightDir2.xyz);
 
   float diffuseLight = max(dot(normal, light), 0.0f);
@@ -155 +155 @@
   //OUT.color = ao; 
   OUT.color = ao * (ambient + diffuse) * color;
+//OUT.color = (ambient + diffuse) * color;
 
   //float4 currentPos = tex2D(normals, IN.texCoord.xy) * 0.5f + 0.5f;
-  //float4 currentPos = tex2D(positions, IN.texCoord.xy);
-  //OUT.color = currentPos.w;
-  
-    
+  //float4 currentPos = tex2D(normals, IN.texCoord.xy);
+  //OUT.color = currentPos;
+      
   return OUT;
 }