meshoptimizer
SHA-256Mesh optimization library that reduces GPU rendering cost. Provides vertex cache, overdraw, and vertex fetch optimization. Open-source (MIT).
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v1.2 · 1.7 MB
Makes 3D meshes smaller and faster to render; a free, lightweight alternative to Simplygon.
Core Features
- Vertex cache optimization to increase GPU post-transform cache hit rate
- Overdraw optimization to reduce pixel shader load
- Vertex fetch optimization for efficient memory access
- Index and vertex quantization to shrink mesh size
- Companion gltfpack for automatic glTF optimization
What It Can't Do
- •Always deduplicate vertices first using meshopt_generateVertexRemap before optimization
- •Apply optimizations in the specified order (indexing → vertex cache → overdraw → vertex fetch) for best results
- •Overdraw optimization may not benefit tile-based deferred renderers (PowerVR, Apple); test before enabling
Use Cases
- Optimizing static meshes and characters in game engines
- 3D content pipeline (model export, glTF processing)
- Real-time rendering applications (VR/AR, digital twins)
Detailed Introduction
Meshoptimizer is a C/C++ library that optimizes triangle meshes for GPU rendering performance. It provides a set of algorithms to reduce mesh size, improve vertex cache utilization, minimize overdraw, and optimize vertex fetch. Unlike commercial solutions (e.g., Simplygon), it is MIT-licensed, open-source, and highly lightweight—perfect for game engines, real-time applications, and content pipelines. The library also includes companion tools like gltfpack for glTF asset optimization and clusterlod.h for continuous LOD generation.
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Getting Started
Download installer
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Install the software
Open the downloaded dmg file, then drag the app to Applications
Clone the repository or download the source archive
Add the source files from src/ directory to your build system
Include meshoptimizer.h and call the desired optimization functions (e.g., meshopt_optimizeVertexCache)
- Clone the repository or download the source archive
- Add the source files from src/ directory to your build system
- Include meshoptimizer.h and call the desired optimization functions (e.g., meshopt_optimizeVertexCache)
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SHA256 Checksum
52e0c061d8b42f1c6bd8fe1cbc1e26a9da579ad5a4f5dd30a8ee0d599062f6c4This checksum is extracted from the GitHub Release page. Verify file integrity after download.
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If installed via package manager (vcpkg, Conan), remove the package using the manager's command. If sources were added manually, delete the files and remove the include from your project.
No Extra Dependencies
Ready to use after download. No additional runtime required.
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