tinyusdz/README.md

Tiny USDZ loader

TinyUSDZ is dependency-free(depends only on C++ STL. Yes, you don't need USD library!) USDZ loader library written in C++11.

Requirements

• C++11

USDZ file format

USDZ is a uncompressed zip file. USDZ contains usdc(binary) and resources(e.g. image file)

Build

Integrate to your app

Simply copy src and include folder to your app, and add *.cc files to your app's build system.

Meson

Meson build is provided for testing compilation.

$ meson builddir
$ cd builddir
$ ninja

Build options

• TINYUSDZ_USE_OPENSUBDIV : Use OpenSubviv to tessellate subdivision surface.

TODO

• Android example
• CPU raytracer viewer
• Viewer with Vulkan API.
• Replace OpenSubdiv with our own subdiv library or embree3's one.
• Read USD data with bounded memory size. This feature is especially useful for mobile platform(e.g. in terms of security, memory consumption, etc)
• USDZ saver
• Support Nested USDZ
• UDIM texture support

Fuzzing test

See tests/fuzzer/

License

TinyUSDZ is licensed under MIT license.

Third party licenses

• USD : Apache 2.0 license. https://github.com/PixarAnimationStudios/USD
• lz4 : BSD-2 license. http://www.lz4.org
• cnpy(uncompressed ZIP decode/encode) : MIT license https://github.com/rogersce/cnpy