Changeset 2811 for GTP/trunk/App/Demos/Vis/FriendlyCulling

Timestamp:

07/03/08 17:52:45 (16 years ago)

Author:

mattausch

Message:

 

Location:

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

Files:

• ResourceManager.cpp (modified) (1 diff)
• chcdemo.cpp (modified) (5 diffs)
• shaders/deferred.cg (modified) (8 diffs)
• shaders/mrt.cg (modified) (4 diffs)

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

@@ -171 +171 @@
         }
         else
+        {
                 texcoords = NULL;
+        }
+
+        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/chcdemo.cpp

@@ -89 +89 @@
 
 static int winWidth = 1024;
-static int winHeight = 768;
+static int winHeight = 1024;
 static float winAspectRatio = 1.0f;
 
@@ -98 +98 @@
 
 // rendertexture
-const static int texWidth = 2048;
-const static int texHeight = 2048;
+const static int texWidth = 1024;
+const static int texHeight = 1024;
 
 int renderedObjects = 0;
@@ -331 +331 @@
         //bvh = bvhLoader.Load("data/city/model/city.bvh", sceneEntities);
 
-        myfar = 10.0f * Magnitude(bvh->GetBox().Diagonal());
+        myfar = 1.0f * Magnitude(bvh->GetBox().Diagonal());
 
         if (!bvh)
@@ -550 +550 @@
         glGenRenderbuffersEXT(1, &normalsBuffer);
         glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, normalsBuffer);
-        glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA8, texWidth, texHeight);
+        glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA16F_ARB, texWidth, texHeight);
         
         glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL_RENDERBUFFER_EXT, normalsBuffer);
@@ -556 +556 @@
         glGenTextures(1, &normalsTex);
         glBindTexture(GL_TEXTURE_2D, normalsTex);
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,  texWidth, texHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB,  texWidth, texHeight, 0, GL_RGBA, GL_FLOAT, NULL);
         glGenerateMipmapEXT(GL_TEXTURE_2D);
         glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL_TEXTURE_2D, normalsTex, 0);

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

@@ -57 +57 @@
 
   // the normal on the current position
-  float3 centerNormal = tex2D(normals, IN.texCoord.xy).xyz * 2.0f - 1.0f;
-
+  float3 centerNormal = tex2D(normals, IN.texCoord.xy).xyz;
+  normalize(centerNormal);
+  
   // Check in a circular area around the current position.
   // Shoot vectors to the positions there, and check the angle to these positions.
@@ -66 +67 @@
 
   //const float areaSize = 4.0f;  
-  const float areaSize = 5e-3f;
-  const float sampleIntensity = 0.1;
+  const float areaSize = 4e-3f;
+  const float sampleIntensity = 0.1f;
   
   for (int i = 0; i < SAMPLES; i ++) {
@@ -75 +76 @@
     float3 noise = tex2D(noiseTexture, IN.texCoord.xy).xyz * 2.0f - 1.0f;
 
+    //    float2 offsetTransformed = offset;
     float2 offsetTransformed;
     offsetTransformed.x = noise.r*offset.x - noise.g*offset.y;
@@ -84 +86 @@
     
     float3 vector_to_sample = sample_position - centerPosition;
+    // vector_to_sample.z = -vector_to_sample.z;
     float length_to_sample = length(vector_to_sample);
-    float3 direction_to_sample = vector_to_sample / length_to_sample;
+    float3 direction_to_sample = vector_to_sample / (length_to_sample + 1e-9f);
     
     // Angle between current normal and direction to sample controls AO intensity.
@@ -92 +95 @@
     
     // distance between current position and sample position controls AO intensity.
-    const float scale = 5e-1f;
+    const float maxdist = 5e-1f;
+    //const float scale = 50.0f;
 
-    float distance_intensity = scale * (1.0f - length_to_sample);
+    float distance_intensity = maxdist - length_to_sample;
     distance_intensity = max(distance_intensity, 0.0f);
     
@@ -112 +116 @@
 {
   pixel OUT;
-  float4 lightDir = float4(1.0f, 1.0f, 1.0f, 0.0f);
+  //float4 lightDir = float4(1.0f, 1.0f, 1.0f, 0.0f);
+float4 lightDir = float4(0.0f, 1.0f, 0.0f, 0.0f);
   
   float4 color = tex2D(colors, IN.texCoord.xy);
@@ -121 +126 @@
   float4 position = tex2D(positions, IN.texCoord.xy);
 
-  float4 ambient = float4(0.3f);
+  float4 ambient = float4(0.1f);
 
   // float3 L = normalize(lightPosition - position);
@@ -132 +137 @@
   OUT.color = ao; //(ambient + diffuse) * color;
   //OUT.color = (ambient + diffuse) * color;
+  
   //float4 currentPos = tex2D(positions, IN.texCoord.xy);
+  //OUT.color = currentPos;
+  //float4 currentPos = tex2D(normals, IN.texCoord.xy) * 0.5f + 0.5f;
   //OUT.color = currentPos;
   

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

@@ -16 +16 @@
   float4 color: COLOR0;  
   float4 worldPos: TEXCOORD1; // world position
-  float3 norm: TEXCOORD2;
+  float3 normal: TEXCOORD2;
 };
 
@@ -29 +29 @@
   float4 color: COLOR0;  
   float4 worldPos: TEXCOORD1; // world position
-  float3 norm: TEXCOORD2;
+  float3 normal: TEXCOORD2;
 };
 
@@ -54 +54 @@
    // eye pos with linear depth
    //OUT.worldPos = OUT.position;
-   OUT.norm = IN.normal;
+   OUT.normal = IN.normal;
 
    return OUT;
@@ -66 +66 @@
   pix.col = tex2D(tex, IN.texCoord.xy);
   pix.pos = IN.worldPos * maxDepth;
-  pix.norm = IN.norm * 0.5f + 0.5f;
+  pix.norm = IN.normal;
 
   return pix;