Changeset 525 for trunk/VUT/GtpVisibilityPreprocessor/src/Beam.cpp

Timestamp:

01/12/06 14:27:18 (18 years ago)

Author:

mattausch

Message:

 

File:

• trunk/VUT/GtpVisibilityPreprocessor/src/Beam.cpp (modified) (1 diff)

trunk/VUT/GtpVisibilityPreprocessor/src/Beam.cpp

@@ -67 +67 @@
 
 
-void Beam::ComputeFrustum(float &near, float &far,
-                                                  float &left, float &right,
+void Beam::ComputeFrustum(float &left, float &right,
                                                   float &bottom, float &top,
-                                                  const AxisAlignedBox3 &sceneBBox)
+                                                  float &near, float &far,
+                                                  const AxisAlignedBox3 &sceneBBox) const
 {
         const float xDirRange = mDirBox.Max().x - mDirBox.Min().x;
         const float yDirRange = mDirBox.Max().y - mDirBox.Min().y;
 
-        near = 1; // NOTE: what is the best value for near and far plane?
-        far = sceneBBox.Size(sceneBBox.Size().DrivingAxis());
+        near = 0.1; // NOTE: what is the best value for near and far plane?
+        far = 2.0f * Magnitude(sceneBBox.Diagonal());
 
-        left = 1.0f / tan(xDirRange * 0.5);
-        right = 1.0f / tan(xDirRange * 0.5);
+        left = near / tan(xDirRange * 0.5);
+        right = near / tan(xDirRange * 0.5);
 
-        bottom = 1.0f / tan(yDirRange * 0.5);
-        top = 1.0f / tan(yDirRange * 0.5);
+        bottom = near / tan(yDirRange * 0.5);
+        top = near / tan(yDirRange * 0.5);
 }
+
+Vector3 Beam::GetMainDirection() const
+{
+         Vector3 directions[4];
+         
+         directions[0] = VssRay::GetDirection(dBox.Min().x, dBox.Min().y);
+         directions[1] = VssRay::GetDirection(dBox.Max().x, dBox.Min().y);
+         directions[2] = VssRay::GetDirection(dBox.Max().x, dBox.Max().y);
+         directions[3] = VssRay::GetDirection(dBox.Min().x, dBox.Max().y);
+
+        return Normalize(direction[0], direction[1], direction[2], direction[3]);
+}