AMD FidelityFX™ Cauldron Framework

AMD FidelityFX™ Cauldron Framework is a framework library for rapid prototyping using either the Vulkan® or DirectX® 12 APIs.

Part of the AMD FidelityFX™ SDK

Download the latest version - v1.1.4

Download AMD FidelityFX SDK v1.1.4 package View AMD FidelityFX SDK on GitHub View Cauldron documentation as part of the AMD FidelityFX™ SDK on GPUOpen

This release of the AMD FidelityFX™ SDK adds the following features:

Additions to the API and fixes for issues discovered.

Realted Sample

AMD Radeon™ Cauldron is now known as AMD FidelityFX™ Cauldron Framework and is part of the AMD FidelityFX™ SDK.
AMD FidelityFX™ Cauldron Framework is packaged with a glTFSample, a basic sample that can generate images like the ones below with a few lines of code.

AMD FidelityFX™ SDK

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

glTFSample Cauldron Sample Project

This sample demonstrates how to use most of Cauldron’s features. It is also a useful reference for getting started with developing your own samples and prototypes.

Features

Easy to extend

Rapid prototyping

Open source, MIT license

AMD FidelityFX™ Cauldron Framework is developed by AMD and is being used internally by several teams. The framework is open source and has been designed to be simple and easy to extend.

The AMD FidelityFX Cauldron Framework includes the following features:

Fast glTF 2.0 file loader.
- Animation for cameras, objects, skeletons, and lights.
- Skinning:
  - Baking skinning into buffers (DirectX®12 only).
- Rendering techniques:
  - Motion vectors.
  - Depth pass only.
  - PBR Materials:
    - Metallic-roughness.
    - Specular-glossiness (KHR_materials_pbrSpecularGlossiness).
  - Lighting (KHR_lights_punctual extension):
    - Point, directional, and spot lights (with up to four shadow maps).
    - Image-based Lighting (IBL) CubeMaps.
- Shadow techniques:
  - Shadow maps (PCF).
Configurable GBuffer supported techniques:
- Full forward.
- Motion vectors.
- Normals.
- Depth.
- Specular-roughness.
- Diffuse-alpha.
Postprocessing:
- TAA.
- Bloom.
- HDR/Tonemapping.

Texture Loaders for DDS, JPEG, and PNG formats.
- MIPMap generation for powers-of-two textures.
In-app user interface using Dear ImGui.
Rendering Resource Management:
- Command Buffer ring.
- Timestamp queries.
- Memory Heap Manager (Linear Allocator).
- Static buffers for VB/IB/CB with suballocation support.
- Dynamic buffers for VB/IB/CB using a ring buffer.
Debug Rendering:
- Bounding box render.
- Light frustum render.
- Wireframe render.
Window management and swapchain creation:
- Fullscreen/Windowed modes and HDR handling.
Support for DXC/SM6.x (also on Vulkan®).
FreeSync™ Premium Pro HDR support.
Shader binary and PSO caching.
Multithreading loading and creation of resources:
- Textures and MIPMap generation.
- Shader compilation.
- Pipeline creation.
VK extensions in-app support.

AMD FidelityFX™ Cauldron Framework is used by the following effects and samples

AMD FidelityFX™ Super Resolution 2 (FSR 2)

Learn even more about our new open-source temporal upscaling solution AMD FSR 2, and get the source code and documentation!

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™ Super Resolution 1 (FSR 1)

AMD FidelityFX Super Resolution (FSR) is our open-source, high-quality, high-performance upscaling solution.

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™ 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™ Variable Shading

AMD FidelityFX Variable Shading drives Variable Rate Shading into your game.

AMD FidelityFX™ Denoiser

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

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™ 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™ 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™ 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™ Contrast Adaptive Sharpening (CAS)

AMD FidelityFX Contrast Adaptive Sharpening (CAS) provides a mixed ability to sharpen and optionally scale an image.

Compressonator

Compressonator is a set of tools to allow artists and developers to more easily work with compressed assets and easily visualize the quality impact of various compression technologies.

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.

Gallery

Developer Testimonials

Find out what developers are saying about AMD FidelityFX™

Version history

The AMD FidelityFX™ SDK 1.1.4 is a patch release that includes additions to API and fixes for issues discovered with AMD FSR 3.1.0 to 3.1.3.
Exposed 4 new tunings to reduce AMD FSR upscaler ghosting in newly disoccludded pixels or highly reactive pixels.
Changed the default value of fMinDisocclusionAccumulation to -0.333 (from equivalent of 0.333 in AMD FSR 3.1.3) to reduce disocclusion ghosting.
Added ffxQueryGetProviderVersion to get version info from created ffx-api context.
Exposed ffxDispatchDescFrameGenerationPrepareCameraInfo as a linked struct. It is a required input to AMD FSR 3.1.4 and onwards for best quality.
Added frame generation debug checker support.
Dropped unused interpolation command lists if frame generation callback fails, to fix infinite wait at swapchain destruction.
General fixes to Vulkan® Frame Interpolation Swapchain.
General framework fixes and updates.
Frame pacing debug line added to Vulkan®.
Added new FFX error when create frame interpolation swapchain results in E_ACCESSDENIED in DX12 due to overlay or capture software.
Enabled support for frame interpolation swapchain on Windows® 10 1909 and potentially earlier versions.
Fixed flipped disocclusion factor from previous and current backbuffer.
Fixed HDR mode issues in Cauldron sample.
Fixed MSVC C compile errors including ffx-api.
The AMD FidelityFX™ SDK 1.1.4 also updates the following to address select issues:
AMD FidelityFX™ Brixelizer GI 1.0.1
AMD FidelityFX™ Breadcrumbs 1.0.1