High-fidelity reflections in your scene, without costing the earth. SSSR uses your rendered frame to create brilliant reflections.

| DOWNLOAD - Latest version 1.1

This release adds the following features:

  • Vulkan support


State-of-the-art algorithm

Optimized for Shader Model 6.0+

Open source, MIT license

The term “Screen Space Reflections” describes an effect that can create realistic looking reflections purely based on information already present in the rendered image. The underlying algorithm shoots reflection rays from a depth imprint of the rendered scene (a so called “depth buffer”) and follows them in constant steps through the image until these rays intersect with the depth buffer again. Instead of taking constant sized steps, FidelityFX SSSR builds on an industry-leading algorithm that searches the rendered image in a hierarchical manner. This allows for larger and fewer steps on average, increasing performance of the search and quality of the final image.

To support glossy reflections, this FidelityFX effect jitters the reflection rays to create the sense of surfaces with varying roughness. However, that approach inherently introduces noise. Thus, FidelityFX SSSR comes with a high quality denoiser specifically optimized for the RDNA architecture. The denoiser combines the results from multiple frames to create a noise-free image. Furthermore, it allows to decrease the ray count based on surface roughness thus further speeding up screen space traversal.



  • Initial release



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

Cauldron Framework

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


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


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


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.