AMD FidelityFX Denoiser includes specialized spatio-temporal denoisers optimized for specific workloads:

  • Shadow Denoiser: Designed to denoise a shadow mask created from tracing jittered rays towards a single light source.
  • Reflection Denoiser: Designed to remove noise from the result of tracing jittered reflection rays based on surface roughness.

Supports:

  • DirectX®12.
  • Vulkan®.

Download the latest version

Xbox Developers
An example use of the Shadow Denoiser exists within the Xbox Game Development Kit samples.

Features

State-of-the-art algorithm

Optimized for Shader Model 6.0+

Open source, MIT license

Shadow Denoiser specific features

  • Spatio-temporal denoiser, specialized for shadow denoising.
  • Tile classifier to skip work on areas without spatial variance in the shadow mask.
  • Increased contribution of spatial filters on low temporal sample counts.
  • Analysis of the local pixel neighborhood to counter ghosting artifacts.

Shadow Denoiser comparison

Shadow Denoiser additional resources

Head over to our Hybrid Shadows sample to see the Shadow Denoiser in action.

Hybrid Shadows

Hybrid Shadows Sample

This sample demonstrates how to combine ray traced shadows and rasterized shadow maps together to achieve higher quality and performance.

Reflection Denoiser Features

  • High performance spatio-temporal denoiser, specialized for reflection denoising.
  • Tile Classifier to skip non reflective areas.
  • Variable Rate Traversal: From full rate for mirror reflections down to quarter rate for glossy reflections.
  • Temporal Variance Guided Tracing.

Includes:

  • Classifier pass for reflection rays and denoiser tiles.
  • Spatial filter pass.
  • Temporal reprojection pass.
  • Gaussian blur.

Reflection Denoiser Comparison

How the Reflection Denoiser works

1. Noisy reflection input
3. Temporal resolve
2. Spatial resolve
4. Gaussian blur

Reflections Denoiser additional resources

Head over to AMD FidelityFX SSSR to see the Reflections Denoiser in action.

Further resources

A set of guidelines for developers on how to present options in the game’s user interface to enable/disable AMD FidelityFX Effects.

Find out what developers are saying about AMD FidelityFX.

More AMD FidelityFX effects

Cauldron Framework

Radeon™ Cauldron is our open source experimentation framework for DirectX®12 and Vulkan®.

Our other effects

FEMFX

A multithreaded CPU library for deformable material physics, using the Finite Element Method (FEM)

DepthOfFieldFX

The DepthOfFieldFX library provides a GCN-optimized Compute Shader implementation of Depth of Field using the Fast Filter Spreading approach.

GeometryFX

GeometryFX improves the rasterizer efficiency by culling triangles that do not contribute to the output in a pre-pass. This allows the full chip to be used to process geometry, and ensures that the rasterizer only processes triangles that are visible.

ShadowFX

ShadowFX library provides a scalable GCN-optimized solution for deferred shadow filtering. It supports uniform and contact hardening shadow (CHS) kernels.

TressFX

The TressFX library is AMD’s hair/fur rendering and simulation technology. TressFX is designed to use the GPU to simulate and render high-quality, realistic hair and fur.