Tiled light trees
Yuriy O'Donnell, Matthäus G. Chajdas · 2017
Handling many light sources in real-time is still one of the big challenges in real-time graphics [Sousa and Geffroy 2016; Garawany 2016]. Even the most recent approaches like practical clustered shading still have various problem cases with low performance. Especially in scenes with high depth variance, existing algorithms cannot adapt to the distribution of light sources properly and end up evaluating many lights that don't contribute to the final image.