In this video we will learn about adaptive tracing in the Presto engine.

Adaptive Tracing for the Presto engine is a technique that solves difficult lighting scenarios such as caustics coming from point lights and diffuse inter-reflections. This results in images with a higher dynamic range and lighting effects that were previously impossible.

Adaptive tracing is controlled by the following options:

• Clamp firefly: Enable this option to eliminate bright pixels from the final image
  • Level: Clamps the brightness of the light paths of the rendered image that have a value higher than the one defined here
• Caustics: Enable this option to introduce reflective and refractive caustics