Changeset 2826 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders

Timestamp:

07/09/08 20:12:00 (16 years ago)

Author:

mattausch

Message:

changed font

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/deferred.cg (modified) (3 diffs)

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

@@ -1 @@
-#define NUM_SAMPLES 12
-#define SAMPLE_INTENSITY 1.2f
+#define NUM_SAMPLES 8
+#define SAMPLE_INTENSITY 0.5f
 //#define SAMPLE_INTENSITY 0.7f
 #define AREA_SIZE 5e-1f
@@ -88 +88 @@
   float total_ao = 0.0;
 
-  //const float areaSize = 5e-1f;
+  const float areaSize = 5e-1f;
   //const float areaSize = 3e-1f;
   //const float sampleIntensity = 0.2f;
@@ -118 +118 @@
 
     // distance between current position and sample position controls AO intensity.
-    //const float maxdist = 4e-1f;
-    const float maxdist = 5e-1f;
-    
-    float distance_intensity = maxdist - length_to_sample;
-    //float distance_intensity = 0.5f / (1.0f + length_to_sample * length_to_sample);
-    distance_intensity = max(distance_intensity, 0.0f);
+    //const float maxdist = 2e-1f;
+    //const float maxdist = 5e-1f;
+    const float distanceScale = 1e-6f;
+    //float distance_intensity = maxdist - length_to_sample;
+    float distance_intensity = (SAMPLE_INTENSITY * distanceScale) / (distanceScale + length_to_sample * length_to_sample);
+    //distance_intensity = max(distance_intensity, 0.0f);
     // quadratic influence
-    distance_intensity *= distance_intensity;
-    
-    total_ao += cos_angle * SAMPLE_INTENSITY * distance_intensity;
+    //distance_intensity *= distance_intensity;
+    
+    total_ao += cos_angle * distance_intensity;
   }