Changeset 2830 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/deferred.cg

Timestamp:

07/10/08 18:39:50 (16 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/deferred.cg (modified) (2 diffs)

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

@@ -4 +4 @@
 
 #define NUM_SAMPLES 8
-#define SAMPLE_INTENSITY 0.5f
-//#define SAMPLE_INTENSITY 0.7f
+//#define SAMPLE_INTENSITY 0.5f
+//#define SAMPLE_INTENSITY 1.1f
+#define SAMPLE_INTENSITY 0.7f
 #define AREA_SIZE 5e-1f
-
-// kustls magic sample positions
-/*static const float2 samples[NUM_SAMPLES] =
-{
-  {-0.326212f, -0.405805f},
-  {-0.840144f, -0.07358f},
-  {-0.695914f, 0.457137f},
-  {-0.203345f, 0.620716},
-  {0.96234f, -0.194983f},
-  {0.473434f, -0.480026f},
-  {0.519456, 0.767022f},
-  {0.185461f, -0.893124f},
-  {0.507431f, 0.064425f},
-  {0.89642f, 0.412458f},
-  {-0.32194f, -0.932615f},
-  {-0.791559f, -0.597705f},
-  {0.326212f, 0.405805f},
-  {0.840144f, 0.07358f},
-  {0.695914f, -0.457137f},
-  {0.203345f, -0.620716},
-  {-0.96234f, 0.194983f},
-  {-0.473434f, 0.480026f},
-  {-0.519456, -0.767022f},
-  {-0.185461f, 0.893124f},
-  {-0.507431f, -0.064425f},
-  {-0.89642f, -0.412458f},
-  {0.32194f, 0.932615f},
-  {0.791559f, 0.597705f}
-};*/
 
 
@@ -119 +91 @@
     float cos_angle = dot(direction_to_sample, currentNormal);
     cos_angle = max(cos_angle, 0.0f);
-    cos_angle *= cos_angle;
+    // take quadratic influence to sharpen contrast
+    //cos_angle *= cos_angle;
 
     // distance between current position and sample position controls AO intensity.