Key Features and Components

  • Fast ray tracing denoising solution
  • NRD is designed to work with 0.5 or 1 ray per pixel
  • Native implementation of the NRD API using engine capabilities
  • Includes three denoisers: ReLAX, ReBLUR, and SIGMA
  • Works with DX11, DX12, and Vulkan compatible engines on Windows 64bit
  • Currently supports the following signals:
  • Diffuse (with embedded ambient occlusion)
  • Specular or reflections (with embedded specular occlusion)
  • Shadows from an infinite light source (sun shadows)


Operating System
  • Windows 10 version 2004, SDK v191041
  • Dependencies
  • NVIDIA Geforce GTX 1000 series or higher, AMD RX 6000 series or higher
  • Development Environment
  • Visual Studio 2017 or Visual Studio 2019
  • DirectX Shader Compiler: Latest Windows SDK version or latest GitHub version (for Vulkan shaders).

  • The NVIDIA Real-Time Denoisers is a fast solution that uses input signals and environmental conditions to deliver results comparable to ground truth images.

    Release Notes

    NRD V. 3.0:
    • Added performance mode and quarter resolution support for improved performance on lower spec systems
    • Added optimization passes for reflection and refraction motion vectors
    • Added a new path-tracing mode in Sample app
    • Various IQ and perf improvements

    Please review the license agreement and check the box below to indicate that you accept it and access NRD.

    I Agree To the Terms of the NVIDIA RTX SDKs License Agreement