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Photon mapping, photon flipping and invalidity photons

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Uploaded by on May 7, 2011

Real-time, CUDA computed, ray tracing and photon mapping engine. Engine uses two novel techniques called "photon flipping" and "invalidity photons".

"Photon flipping" significantly reduces the number of ray collision tests required for scattering direct/shadow photons. "Invalidity photons" significantly speedup the direct/shadow photon gathering stage and .

Photon storing was implemented using sortless spatial hashing -- O(n) photon lookup time, no photon storing nor kd-tree building required.

Thesis is avaivable here http://www.peterw.eu/photon-flipping.pdf

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  • Hi,  Interesting stuff. Could u tell me how u made the move,rotate gizmos? Were these custom written or did u use a library. If using a library which library is it?

  • @bobthefattyninja So you're not the first?

  • @acgfx "HoloToy's" Is "Cornell Box" More!! "Geometric Shape 3D"

  • first! jk lol

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