Extending AAPS for higher quality caustic rendering

Abstract

Rendering caustics within the real-time realm has recently become possible. While adaptive anisotropic photon scattering is capable of rendering high quality caustics with tight time constraints, the previous understanding of the method was lacking in several aspects. In this article, we report on the performance, features and limitations of AAPS. Two of these problem areas are aliasing and indirect visibility and we propose solutions for them. Aliasing can be significantly reduced at a low cost. Indirect visibility can also be solved in real-time, but the cost of doing so using our method is significantly higher than AAPS on its own.