Caustic Ray Tracing CSS552

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Presentation transcript:

Caustic Ray Tracing CSS552 Steve Dame Aysun Simitci Sabitha Abraham

PL 7 ^ -L 1 3 ^ Pe Image Plane 6 4 FOV Ps ^ V 5 Photon Map 2 Caustic Ray Tracing PL 7 Compute Phong Illumination where Lc is the photon map light cell intensity. -L ^ 1 Compute Caustic Ray Point Map 3 Shoot Caustic Rays UP ^ (ray = PS – PL) Pe Image Plane Accumulate Photon “hits” 6 N ^ θ0 w ^ u ^ Intersect & Compute First Refraction 4 FOV Φ0 Ps V ^ N ^ Φ1 θ1 5 Intersect & Compute Second Refraction Photon Map Create Photon Density Array 2 11/29/2018

Without photon mapping

With photon mapping and Caustic effect

Caustic tool with 7 rays

Caustic tool with 77 rays

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