Changeset 1586 for GTP/trunk/Lib/Vis/Preprocessing/src/IntersectableWrapper.cpp

Timestamp:

10/09/06 15:57:28 (18 years ago)

Author:

mattausch

Message:

resolved bug for object space distribution using triangles
fixed biasing bug for mesh::GetRandomSurfacePoint? method and
GetRandomVisibleSurfacePoint?.

File:

• GTP/trunk/Lib/Vis/Preprocessing/src/IntersectableWrapper.cpp (modified) (1 diff)

GTP/trunk/Lib/Vis/Preprocessing/src/IntersectableWrapper.cpp

@@ -55 +55 @@
 }
 
+int
+TriangleIntersectable::GetRandomSurfacePoint(Vector3 &point, Vector3 &normal)
+{
+        // random barycentric coordinates
+        const float a = RandomValue(0, 1);
+        const float b = RandomValue(0, 1);
+        const float c = 1.0 - a - b;
+        
+        point = mItem.mVertices[0] + a * (mItem.mVertices[1] - mItem.mVertices[0]) +
+                        mItem.mVertices[0] + b * (mItem.mVertices[2] - mItem.mVertices[0]) +
+                        mItem.mVertices[1] + c * (mItem.mVertices[2] - mItem.mVertices[1]);
+        
+        normal = mItem.GetNormal();
+
+        return 0;
+}
+
  
 }