NVIDIA Real-Time Denoiser The NVIDIA Real-Time Denoiser (NRD) is a spatio-temporal API agnostic denoising library that’s designed to work with low ray per pixel signals. It uses input signals and environmental conditions to deliver results comparable to ground truth images. Get Started 4K ray tracing passes from Watch Dogs Legion. The left image is the original input. The right image is processed through NRD. Fast Ray Tracing Denoising Solution Fast integration, fast real-time performance. NVIDIA Real-Time Denoiser will increase the efficiency of your art pipeline.