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
FidelityFX CLI
Want to quickly try out FidelityFX Super Resolution (FSR) or FidelityFX Contrast Adaptive Sharpening (CAS)?
You can use our new command-line tool 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.
FidelityFX Contrast Adaptive Sharpening is available as a feature patch you can apply for Unreal Engine.
Useful information
A set of guidelines for developers on how to present options in the game’s user interface to enable/disable AMD FidelityFX Effects.
Find out what developers are saying about AMD FidelityFX.
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