Cauldron is a framework library for rapid prototyping using either the Vulkan® or Direct3D® 12 APIs.
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| FEATURES
Easy to extend
Rapid prototyping
Open source. MIT license
Cauldron is developed by AMD and is being used internally by several teams. Cauldron is open source and has been designed to be simple and easy to extend.
The Cauldron framework includes the following features:
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Swapchain management.
- Fullscreen/Windowed Modes.
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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.
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glTF 2.0 File loader.
- Animation for cameras, objects, skeletons and lights.
- Skinning.
- PBR Materials.
- Metallic-Roughness.
- Specular-Glossiness (KHR_materials_pbrSpecularGlossiness).
- Lighting (KHR_lights_punctual extension).
- Spot Lights w/ Shadows (up to 4).
- Image-based Lighting (IBL) CubeMaps.
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Support for DXC/SM6.x.
- Shader Binary & PSO caching.
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A simple post-processing pipeline.
- Bloom.
- HDR/Tonemapping.
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Texture Loaders for DDS, JPEG and PNG formats.
- MIPMap generation for powers-of-two textures.
- In-app user interface using Dear ImGui.
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Debug Rendering.
- Wireframe bounding boxes.
- Light frustums.
| USED IN
FidelityFX – Luminance Preserving Mapper
FidelityFX LPM provides an open source library to easily integrate HDR and wide gamut tone and gamut mapping into your game.
FidelityFX – Stochastic Screen Space Reflections
The AMD FidelityFX SSSR effect provides an open source library to easily integrate stochastic screen space reflections into your game.
FidelityFX – Combined Adaptive Compute Ambient Occlusion
FidelityFX Combined Adaptive Compute Ambient Occlusion (CACAO) is an RDNA-optimized implementation of ambient occlusion.
FidelityFX – Single Pass Downsampler
FidelityFX Single Pass Downsampler (SPD) provides an RDNA-optimized solution for generating up to 12 MIP levels of a texture.
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.
GltfSample, a basic sample that can generate images like the ones below with a few lines of code.
| OUR OTHER EFFECTS
FidelityFX – Luminance Preserving Mapper
FidelityFX LPM provides an open source library to easily integrate HDR and wide gamut tone and gamut mapping into your game.
FidelityFX – Stochastic Screen Space Reflections
The AMD FidelityFX SSSR effect provides an open source library to easily integrate stochastic screen space reflections into your game.
FidelityFX – Combined Adaptive Compute Ambient Occlusion
FidelityFX Combined Adaptive Compute Ambient Occlusion (CACAO) is an RDNA-optimized implementation of ambient occlusion.
FidelityFX – Single Pass Downsampler
FidelityFX Single Pass Downsampler (SPD) provides an RDNA-optimized solution for generating up to 12 MIP levels of a texture.
FEMFX
A multithreaded CPU library for deformable material physics, using the Finite Element Method (FEM)
FidelityFX – Contrast Adaptive Sharpening
FidelityFX Contrast Adaptive Sharpening (CAS) provides a mixed ability to sharpen and optionally scale an image.
DepthOfFieldFX
The DepthOfFieldFX library provides a GCN-optimized Compute Shader implementation of Depth of Field using the Fast Filter Spreading approach.
GeometryFX
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
ShadowFX library provides a scalable GCN-optimized solution for deferred shadow filtering. It supports uniform and contact hardening shadow (CHS) kernels.
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.