Changeset 2131 for GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPAdvancedEnvMap/multibounce/GTPMultipleReflection.hlsl

Timestamp:

02/20/07 14:10:19 (17 years ago)

Author:

szirmay

Message:

 

File:

• GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPAdvancedEnvMap/multibounce/GTPMultipleReflection.hlsl (modified) (4 diffs)

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPAdvancedEnvMap/multibounce/GTPMultipleReflection.hlsl

@@ -12 +12 @@
 
 #define MAX_LIN_ITERATIONCOUNT 50  //80
-#define MIN_LIN_ITERATIONCOUNT 15  //60
+#define MIN_LIN_ITERATIONCOUNT 30  //60
 #define SECANT_ITERATIONCOUNT 1
-#define MAX_RAY_DEPTH 4
+#define MAX_RAY_DEPTH 2
 
 void linearSearch(  float3 x, float3 R, float3 N, samplerCUBE mp,
@@ -240 +240 @@
           float3 l = Hit(x, R, N, NormDistMap1, NormDistMap2, CubeMap, DistanceMap, Il, Nl);
           if(Il.a == 0)
-          {
-                  //I = readCubeMap(CubeMap, l);
+          {               
                    depth += 1;           
           }
@@ -252 +251 @@
           N = normalize(Nl);
           V = R;                   
-        }  
-            
+        } 
+                
+        if(I.a == 0)
+        {
+         float ri = refIndex;    
+         if(dot(V,N) > 0)
+         {
+                ri = 1.0 / ri;
+                N = -N;     
+         }
+         float3 R = refract( V, N, ri);
+         if(dot(R,R) == 0) R = reflect( V, N);
+         I = readCubeMap(CubeMap, R);
+        }
+        
         I *= (1.0 - F); 
     
@@ -307 +319 @@
         }  
         if(I.a == 0)
-                I = 0;
+                I = float4(V,1);
         else
                 I = float4(l,1);