Changeset 2861 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SsaoShader.h

Timestamp:

08/22/08 13:20:06 (16 years ago)

Author:

mattausch

Message:

cleaned up code

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SsaoShader.h (modified) (6 diffs)

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

@@ -14 +14 @@
 class Vector3;
 class Camera;
-
+class Matrix4x4;
 
 /** This class implements a deferred shading algorithm that takes
@@ -23 +23 @@
 public:
         /** constructor for a deferred shader taking the requested output image size,
-                the current camera, the exponential smoothing factor for temporal reprojection, 
-                and a scaling factor.
+                the current camera,     and a scaling factor.
                         
                 The parameter scaleFactor must be reciprocal value of the 
@@ -30 +29 @@
                 exact scene size that was scaled in order to improve floating point precision.
         */
-        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.
+        SsaoShader(int w, int h, Camera *cam, float scaleFactor);
+        /** 
+        
+                The algorithm renders the scene given an fbo consists of 1 color buffer, 
+                1 position buffer, and 1 normal buffer.
+                We also need the  projection view matrix of the last frame for reprojection, and
+                a smoothing factor for temporal coherence
         */
-        void Render(FrameBufferObject *fbo, FrameBufferObject *fbo2);
+        void Render(FrameBufferObject *fbo, const Matrix4x4 &oldProjViewMatrix, float expFactor);
 
         /** Initialises the deferred shader and loads the required shaders:
@@ -41 +44 @@
         static void Init(CGcontext context);
 
+        ~SsaoShader();
 
 protected:
 
-        void FirstPass(FrameBufferObject *fbo, FrameBufferObject *fbo2);
+        void FirstPass(FrameBufferObject *fbo, float expFactor);
 
-        void SecondPass(FrameBufferObject *fbo, FrameBufferObject *fbo2);
+        void SecondPass(FrameBufferObject *fbo);
+
+        void CreateNoiseTex2D();
+        void ComputeViewVectors(Vector3 &tl, Vector3 &tr, Vector3 &bl, Vector3 &br);
 
 
@@ -54 +61 @@
         int mHeight;
 
-        /// the temporal smoothing factor
-        float mExpFactor;
         /// this is just a scale factor for the scene depth in order to get better float precision in the shader
         float mScaleFactor;
@@ -61 +66 @@
         Camera *mCamera;
 
-
-private:
-
-        void CreateNoiseTex2D();
-        void ComputeViewVectors(Vector3 &tl, Vector3 &tr, Vector3 &bl, Vector3 &br);
-
+        FrameBufferObject *mOldFbo;
+        FrameBufferObject *mNewFbo;
 };