Ray Tracing Bezier Surface - IIIT Hyderabad

IIIT HyderabadGeimer 2005• Based on the flatness criteria, each patchis divided into subpatches.• BVH for original surfaces– Bounding boxes of subpatches at leaf nodes.• For each potential intersection– Generate initial values for Newton Iteration• Achieve 6.4 fps for 512x512 image.Original CurveSubdivided LinearCurve1BVH Nodes2 3Patch1 P2 P3sp1 sp2 sp1 sp2 sp1 sp2 Subpatches at Leaf