AMD FidelityFX Hybrid Reflections sample

This sample shows how to combine AMD FidelityFX™ Stochastic Screen Space Reflections (SSSR) with ray tracing in order to create high quality reflections.

Supports:

  • DirectX®12
  • Vulkan®

Part of the AMD FidelityFX™ SDK

AMD FidelityFX SDK components

Download the latest version v1.0:

This release adds the following features:

  • Just released!

Download the latest version as part of FidelityFX SDK v1.1​

AMD FidelityFX Hybrid Reflections: 

  • Various fixes and improvements.

Updated as part of AMD FidelityFX SDK v1.1:

  • AMD FidelityFX backend updates, including buffer allocator overrides
  • Updated documentation and release of reference documentation for SDK + Framework
  • Native Microsoft® GDK® backend implementation library (requires developer access to GDK® program)

Features

  • Hybrid Reflections
    • Uses AMD FidelityFX SSSR to replace ray tracing intersection tests.
    • Reshades re-projected pixels for accurate material evaluation.
    • Supports lower resolution reflections using AMD FidelityFX Super Resolution (FSR) 1.0 upscaling.
    • Uses per-pixel feedback to reduce hybridization cost.
  • Ray-traced reflections.
  • AMD FidelityFX reflection denoiser.
Shadow Denoiser

AMD FidelityFX™ Denoiser

AMD FidelityFX Denoiser is a set of denoising compute shaders which remove artefacts from reflection and shadow rendering.

Debug view

Left side: The hybrid stochastic reflections composited into the final scene. 

Right side: Debug visualization which shows which pixels have their reflections calculated by ray tracing, screen space reflections, or a mix of the two.

Using hybrid stochastic reflections, decals which are rendered in screen space (and not present in the BVH) may be included in the reflections.

Screen space reflection

DXR ray

Screen space reflection, followed by DXR ray

No reflections

Screen space reflection

DXR ray

Screen space reflection, followed by DXR ray

No reflections

Requirements

  • A graphics card with Direct3D® 12 and DXR support.
  • Windows® 10 (64-bit recommended).
  • Visual Studio® 2019 with Visual C++® and the Windows® 10 SDK installed.

Related to Hybrid Reflections

Shadow Denoiser

AMD FidelityFX™ Denoiser

AMD FidelityFX Denoiser is a set of denoising compute shaders which remove artefacts from reflection and shadow rendering.

Version history

AMD FidelityFX Hybrid Reflections: 

  • Various fixes and improvements.

Updated as part of AMD FidelityFX SDK v1.1:

  • AMD FidelityFX backend updates, including buffer allocator overrides
  • Updated documentation and release of reference documentation for SDK + Framework
  • Native Microsoft® GDK® backend implementation library (requires developer access to GDK® program)

All part of the FidelityFX SDK!

AMD FidelityFX SDK

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The AMD FidelityFX SDK is our easy-to-integrate solution for developers looking to include FidelityFX features into their games.

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