Towards Practical Meshlet Compression

Bastian Kuth¹, Max Oberberger², Felix Kawala^1,2, Sander Reitter^1,2, Sebastian Michel¹, Matthäus G. Chajdas², Quirin Meyer¹

¹Coburg University of Applied Sciences and Arts ²AMD

Image showing rocks with a wireframe overlay and a visualization of the underlying meshlet structure. — Meshes are decomposed into meshlets which are compressed using the techniques described in this paper.

Accepted to the Symposium on Vision, Modeling, and Visualization (VMV) 2024. Won best paper award.

Abstract

We propose a codec specifically designed for meshlet compression, optimized for rapid data-parallel GPU decompression within a mesh shader. Our compression strategy orders triangles in optimal generalized triangle strips (GTSs), which we generate by formulating the creation as a mixed integer linear program (MILP). Our method achieves index buffer compression rates of 16:1 compared to the vertex pipeline and crack-free vertex attribute quantization based on user preference. The 15.5 million triangles of our teaser image decompress and render in 0.59 ms on an AMD Radeon RX 7900 XTX

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