Changeset 2885 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg

Timestamp:

08/29/08 17:27:05 (16 years ago)

Author:

mattausch

Message:

 

File:

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

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

@@ -78 +78 @@
                 float3 direction_to_sample = vector_to_sample / length_to_sample;
 
-                // Angle between current normal and direction to sample controls AO intensity.
+                // angle between current normal and direction to sample controls AO intensity.
                 const float cos_angle = max(dot(direction_to_sample, currentNormal), 0.0f);
 
@@ -85 +85 @@
                         (SAMPLE_INTENSITY * DISTANCE_SCALE) / (DISTANCE_SCALE + length_to_sample * length_to_sample);
 
-                // if surface normal perpenticular to view dir, some samples probably count less 
-                // => compensate for this
+                // if surface normal perpenticular to view dir, approx. half of the samples will not count
+                // => compensate for this (on the other hand, projected sampling area could be larger!)
                 const float view_correction = 1.0f + VIEW_CORRECTION_SCALE * (1.0f - dot(currentViewDir, currentNormal));