FidelityFX

FidelityFX is our series of optimized, shader-based features aimed at improving rendering quality and performance.

These features are designed to be easy to integrate, and we ship HLSL and/or GLSL versions of the effects to allow you to target any API.

Contrast Adaptive Sharpening (CAS)

CAS is a low overhead adaptive sharpening algorithm with optional up-sampling.

Find out more:

• FidelityFX CAS source code
• FidelityFX CAS on GPUOpen

Combined Adaptive Compute Ambient Occlusion (CACAO)

CACAO is a highly optimized adaptive sampling ambient occlusion implementation.

Find out more:

• FidelityFX CACAO source code
• FidelityFX CACAO on GPUOpen

Luminance Preserving Mapper (LPM)

LPM is is a tone mapping and gamut mapping solution for HDR and wide gamut content.

Find out more:

• FidelityFX LPM source code
• FidelityFX LPM on GPUOpen

Single Pass Downsampler (SPD)

SPD provides an RDNA-optimized solution for generating up to 12 MIP levels of a texture.

Find out more:

• FidelityFX SPD source code
• FidelityFX SPD on GPUOpen

Stochastic Screen Space Reflections (SSSR)

SSSR is a highly optimized hierarchical screen space traversal kernel for reflections.

Find out more:

• FidelityFX SSSR source code
• FidelityFX SSSR on GPUOpen

Variable Shading

Variable Shading is a technique to generate image based VRS based on luminance of samples in the previous frame.

Find out more:

• FidelityFX Variable Shading source code
• FidelityFX Variable Shading on GPUOpen

Parallel Sort

Parallel Sort provides an easy to integrate, highly optimized compute-based radix sort.

Find out more:

• FidelityFX Parallel Sort source code
• FidelityFX Parallel Sort on GPUOpen

Denoiser

FidelityFX Denoiser contains a highly optimized denoiser implementation for reflection data.

Find out more:

• FidelityFX Denoiser source code
• FidelityFX Denoiser on GPUOpen