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NVIDIA Displacement Micro-Map SDK

For more information about NVIDIA Micro-Mesh Technology visit NVIDIA developer

The libraries in this repository aid 3D asset content creation using displacement Micro-Maps. Please refer to the NVIDIA Displacement-MicroMap-Toolkit to see them being used.

This SDK provides a low-level API meant for embedding in other applications and tools. It has a C-style API as well as an API agnostic GPU interface to facilitate this. As a result it is sometimes a bit less easy to use. All functionality is provided through the micromesh namespace and it makes frequent use of the micromesh::ArrayInfo structure, which allows it to pass data as a pointer & stride combination. All user visible data is allocated by the user, so some operations are executed in two steps where a micromeshOpSomethingBegin returns the sizing required, while micromeshOpSomethingEnd completes it. One can also abort such operations with micromeshOpContextAbort. The micromesh::Context therefore is stateful but fairly lightweight, in case you want to create one per thread. Right now there is also some rudimentary automatic threading within the context.

• micromesh_core: Library for basic data structures, utilities and operations to create or modify micromap and micromesh data.
• micromesh_displacement_compression: Library that handles the compression of displacement micromaps.
• micromesh_displacement_remeshing: Library for GPU-based remeshing (currently only a Vulkan/SPIR-V based implementation for the GPU exists).

About the Latest Release

Version 2.1

• Add OpTessellateMesh_input::pfnProvideTriangleVertices for control over the output location.
• Add micromeshOpChangeLayoutPacked for format conversion
• Fixed bugs in compressor bit packing

Version 2.0

• API break: micromesh::OpGrowTriangleSelection_input::topology is now a const array
• Fix UB in compressor due to possible negative shifts
• Step towards remesher determinism

Support Contact

Feel free to file issues directly on the GitHub page or reach out to NVIDIA at displacedmicromesh-sdk-support@nvidia.com