Ray Tracing Bezier Surface - IIIT Hyderabad

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IIIT HyderabadRay Tracing Bezier Surface• Newton Iteration• Bivariate Newton Iterationto solve for (u,v)Picture Courtesy :http://steadyserverpages.comR is the intersection equation for a ray,J is the Jacobian matrix of R.
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
Page 1 and 2: IIIT HyderabadHybrid Ray Tracing an
Page 3 and 4: IIIT HyderabadParametric Surface: M
Page 5 and 6: IIIT HyderabadRendering Bezier Surf
Page 7: IIIT HyderabadRay Tracing Bezier Su
Page 11 and 12: IIIT HyderabadMixed Hierarchy Advan
Page 13 and 14: IIIT HyderabadGPU Implementation•
Page 15 and 16: IIIT HyderabadHybrid Ray TracingGen
Page 17: IIIT HyderabadResults (Primary+Seco
Page 20 and 21: IIIT HyderabadPath TracingBigguy in
Page 22 and 23: IIIT HyderabadPath TracingBigguy in
Page 24 and 25: IIIT HyderabadConclusions• A mixe
Page 26: IIIT HyderabadResultsIntel i7 920 +

Ray Tracing Bezier Surface - IIIT Hyderabad

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