SIGGRAPH 2018
Contributors:
Steve Agland
Matthew Reid
Daniel Heckenberg
Abstract:
We introduce a new conceptual model for including live-action footage in the light transport simulation of production renderers. By explicitly declaring which elements of the scene were present during photography, our pathtracer can generate realistic bidirectional lighting and shadowing between live-action and synthetic elements in a single pass. Using the film Peter Rabbit as a case study, we show how this can be used for automatic integration of synthetic elements into plates throughout the visual effects review process, from layout to interactive lighting. Auxiliary channels allow a compositor to perform several post-render adjustments, including rebalancing lighting on live-action elements.