AMD FidelityFX™ Contrast Adaptive Sharpening (CAS) provides a mixed ability to sharpen and optionally scale an image.
Download the latest version:
Download the latest version v1.1
This release includes:
- Now part of AMD FidelityFX SDK.
- Introduces the option to expose up-sampling options.
Part of the AMD FidelityFX™ SDK
Xbox developer?
An example use of AMD FidelityFX Contrast Adaptive Sharpening exists within the Xbox Game Development Kit samples.
Features
Razor sharp visuals
Highly optimized
Open source, MIT license
Details
AMD FidelityFX Contrast Adaptive Sharpening (CAS) provides a mixed ability to sharpen and optionally scale an image. The algorithm adjusts the amount of sharpening per pixel to target an even level of sharpness across the image. Areas of the input image that are already sharp are sharpened less, while areas that lack detail are sharpened more. This allows for higher overall natural visual sharpness with fewer artifacts.
CAS was designed to help increase the quality of existing Temporal Anti-Aliasing (TAA) solutions. TAA often introduces a variable amount of blur due to temporal feedback. The adaptive sharpening provided by CAS is ideal to restore detail in images produced after TAA .
CAS’ optional scaling capability is designed to support Dynamic Resolution Scaling (DRS). DRS changes render resolution every frame, which requires scaling prior to compositing the fixed-resolution User Interface (UI). CAS supports both up-sampling and down-sampling in the same single pass that applies sharpening.
Comparisons off/on
See AMD FidelityFX CAS in action with Godfall
You'll also find AMD FidelityFX CAS in The Riftbreaker
Developers using AMD FidelityFX
AMD FidelityFX CLI
Want to quickly try out AMD FidelityFX Super Resolution (FSR) or AMD FidelityFX Contrast Adaptive Sharpening (CAS)?
You can use our new command-line tool AMD FidelityFX CLI, which lets you test FSR or CAS on a screenshot, or any other image.
Unreal Engine developer?
We have many powerful patches for Unreal Engine for registered Unreal Engine developers, covering performance and features.
AMD FidelityFX Contrast Adaptive Sharpening is available as a feature patch you can apply for Unreal Engine.
Useful information
Find out what developers are saying about AMD FidelityFX.
All part of the FidelityFX SDK!
AMD FidelityFX™ SDK
The AMD FidelityFX SDK is our easy-to-integrate solution for developers looking to include FidelityFX features into their games.
Don't miss our other effects
AMD FidelityFX™ Blur
AMD FidelityFX Blur is an AMD RDNA™ architecture optimized collection of blur kernels from 3×3 up to 21×21.
AMD FidelityFX™ Combined Adaptive Compute Ambient Occlusion (CACAO)
AMD FidelityFX Combined Adaptive Compute Ambient Occlusion (CACAO) is an AMD RDNA™ architecture optimized implementation of ambient occlusion.
AMD FidelityFX™ Denoiser
AMD FidelityFX Denoiser is a set of denoising compute shaders which remove artefacts from reflection and shadow rendering.
AMD FidelityFX™ Depth of Field (DoF)
AMD FidelityFX Depth of Field is an AMD RDNA™-architecture optimized implementation of physically correct camera-based depth of field.
AMD FidelityFX™ Hybrid Shadows sample
This sample demonstrates how to combine ray traced shadows and rasterized shadow maps together to achieve high quality and performance.
AMD FidelityFX™ Hybrid Stochastic 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.
AMD FidelityFX™ Lens
AMD FidelityFX Lens is an AMD RDNA™ architecture optimized implementation of some of gaming’s most used post-processing effects.
AMD FidelityFX™ Luminance Preserving Mapper (HDR Mapper)
AMD FidelityFX LPM provides an open-source library to easily integrate HDR and wide gamut tone and gamut mapping into your game.
AMD FidelityFX™ Naming Guidelines in Game Titles
A set of guidelines for developers on how to present options in the game’s user interface to enable/disable AMD FidelityFX Effects.
AMD FidelityFX™ Parallel Sort
AMD FidelityFX Parallel Sort makes sorting data on the GPU quicker, and easier. Use our SM6.0 compute shaders to get your data in order.
AMD FidelityFX™ Single Pass Downsampler (SPD)
AMD FidelityFX Single Pass Downsampler (SPD) provides an AMD RDNA™ architecture optimized solution for generating up to 12 MIP levels of a texture.
AMD FidelityFX™ Stochastic Screen Space Reflections (SSSR)
The AMD FidelityFX SSSR effect provides an open-source library to easily integrate stochastic screen space reflections into your game.
AMD FidelityFX™ Super Resolution 1 (FSR 1)
AMD FidelityFX Super Resolution (FSR) is our open-source, high-quality, high-performance upscaling solution.
AMD FidelityFX™ Super Resolution 2 (FSR 2)
Learn even more about our new open-source temporal upscaling solution FSR 2, and get the source code and documentation!
AMD FidelityFX™ Super Resolution 3 (FSR 3)
Discover frame generation with AMD FidelityFX™ Super Resolution 3, and get the source code and documentation!
AMD FidelityFX™ Variable Shading
AMD FidelityFX Variable Shading drives Variable Rate Shading into your game.
Radeon™ Cauldron Framework
Radeon Cauldron is our open-source experimentation framework for DirectX®12 and Vulkan®, provided in the AMD FidelityFX SDK.
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.