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FidelityFX Denoiser contains a collection of highly optimized denoiser implementations for specific use cases.

A spatio-temporal denoiser for raytraced soft shadows. It is intended to be used on a shadow mask that was created from at most one jittered shadow ray per pixel. It makes use of a tile classification pass to skip work on areas without spatial variance in the shadow mask. In cases of low temporal sample counts, the contribution from the spatial filters are increased, which successively cools off as the temporal sample count increases. The denoiser aims to avoid ghosting artifacts by analyzing the local pixel neighborhood and clamping the accumulated history.

• ffx-shadows-dnsr contains the Shadow Denoiser

The reflection denoiser includes a high performance spatio-temporal denoiser specialized for reflection denoising. The preferred use case of this denoiser is within applications requiring denoised radiance values generated by some stochastic reflection implementation. Examples of stochastic reflections:

• Stochastic Screen Space Reflections
• Stochastic Raytraced Reflections

• ffx-reflection-dnsr contains the Reflection Denoiser
• Visit FidelityFX SSSR to see the reflection denoiser in action.