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Syoyo Fujita
2025-12-23 00:16:09 +09:00
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sandbox/lightusd/README.md
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While TinyUSDZ provides a high-level, batteries-included framework with extensive abstractions, LightUSD takes a different approach: it exposes the fundamental building blocks of USD with minimal overhead, giving you direct control over every aspect of scene description parsing, manipulation, and serialization.
LightUSD is targetting 3D content creation/DCC framework for genAI, VLM/LLM application.
LightUSD is targetting 3D content creation/DCC framework for 3D genAI, 3D VLM/LLM application.
## Philosophy
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| `LIGHTUSD_WASM_JSPI` | Enable JSPI (more efficient, Chrome 109+) |
| `LIGHTUSD_COROUTINE` | Enable C++20 coroutine API |
## Comparison with pxrUSD
## Comparison with TinyUSDZ
| Aspect | pxrUSD | LightUSD |
| Aspect | TinyUSDZ | LightUSD |
|--------|--------|----------|
| Philosophy | High-level framework | Low-level toolkit |
| Dependencies | Boost, TBB, Python, ... | None |
| Binary size | ~100+ MB | < 1 MB |
| Exceptions | Yes | No |
| RTTI | Yes | No |
| Threading | Built-in thread pool | User-controlled |
| Dependencies | None, but some external libraries embedded | None |
| Binary size | ~10+ MB | < 1 MB |
| Exceptions | No | No |
| RTTI | No | No |
| Threading | Built-in(W.I.P | User-controlled |
| Memory | Automatic management | Explicit control |
| WebAssembly | Difficult | First-class support |
| Composition | Integrated Pcp | Modular, optional |
| WebAssembly | Supported, but no async | First-class support |
| Composition | Integrated | Modular, optional |
## License