Changeset 2860 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SsaoShader.h

Timestamp:

08/21/08 20:17:46 (16 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SsaoShader.h (modified) (3 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SsaoShader.h

@@ -12 +12 @@
 
 class FrameBufferObject;
+class Vector3;
+class Camera;
 
 
@@ -21 +23 @@
 public:
         /** constructor for a deferred shader taking the requested output image size,
-                the exponential smoothing factor for temporal reprojection.
-                
-                The last parameter is a just a scale factor
-                for the scene depth in order to get better floating point precision in the shader
-                This must be reciprocal value of the scale factor used in the mrt shader.
+                the current camera, the exponential smoothing factor for temporal reprojection, 
+                and a scaling factor.
+                        
+                The parameter scaleFactor must be reciprocal value of the 
+                scale factor used for creating the positions texture. It is used recover the 
+                exact scene size that was scaled in order to improve floating point precision.
         */
-        SsaoShader(int w, int h, float expFactor, float scaleFactor);
+        SsaoShader(int w, int h, Camera *cam, float expFactor, float scaleFactor);
         /** The algorithm renders the scene given an fbo.
                 The fbo must have color buffer, position buffer, normal buffer.
@@ -55 +58 @@
         /// this is just a scale factor for the scene depth in order to get better float precision in the shader
         float mScaleFactor;
+
+        Camera *mCamera;
+
+
+private:
+
+        void CreateNoiseTex2D();
+        void ComputeViewVectors(Vector3 &tl, Vector3 &tr, Vector3 &bl, Vector3 &br);
+
 };