How to conquer washed out lights and ugly color banding

Disney Animation makes heavy use of Ptex [Burley and Lacewell 2008] across our assets [Burley et al. 2018], which required a new texture streaming pipeline for our new real-time ray tracer. Our goal was to create a scalable system which could provide a real-time, zero-stall experience to users at all times, even as the number of Ptex files expands into the tens of thousands. We cap the maximum size of the GPU cache to a relatively small footprint, and employ a fast LRU eviction scheme when we hit the limit.