Multiple vertex merging Kun Xu. Previous works Photon mapping – Generate various light sub-paths and eye sub- paths – Merge a light sub-path and an eye.

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Presentation transcript:

Multiple vertex merging Kun Xu

Previous works Photon mapping – Generate various light sub-paths and eye sub- paths – Merge a light sub-path and an eye sub-path to a full path – But, merge at ONLY ONE vertex

Our idea Light sub-path vertex Eye sub-path vertex

Our idea Light sub-path vertex Eye sub-path vertex

Naïve implementation of our approach

Fast evaluation by caching

Details How to calculate weight, probability and contribution? – Details coming soon … How to exactly do the caching scheme – Like walking on a “graph”

Discussion Will the proposed scheme better work for scattering media?

Probability Evaluation

Weight