ReLAX: A Denoiser Tailored to Work with the ReSTIR Algorithm
, NVIDIA
, NVIDIA
Highly Rated
ReLAX originates from SVGF but takes image quality and performance to the next level. Some of the key improvements are high quality reprojection, minimal lag thanks to the responsive history buffers, temporal stability driven by the recurrent firefly filter, and a special treatment of disoccluded areas. The input signal is split into diffuse and specular components throughout the denoising pipeline. That, in turn, allows for employing sophisticated logic and math to handle surfaces with low roughness significantly better. All of this, combined with various performance optimizations, is what makes ReLAX capable of denoising ReSTIR signal in real-time.