STF - Squirrel Transfer Format¶
A modular file-format for 3D assets
Intended for (not only) games-development use-cases.
Warning
Please note, STF is work in progress and likely to change.
Install STF support for:
Try to import this example model!
Relevant future implementation targets include: 3dsMax, Unreal Engine, Maya, Bevy, BabylonJs, …
Concept¶
STF by itself is merely a shell format. Its implementations provides a framework for different modules to parse and serialize resourses.
Resources are stored as Json-objects, identified by a unique ID. Resources can reference binary buffers and each other.
A few modules, including but not limited to stf.prefab, stf.mesh, stf.material or stf.image, are provided by default.
Additional modules can be easily implemented by third parties. Each STF implementation must provide an easy and convenient way to hot-load module-plugins.
Note
As the format is focussed on interoperability, the default module for meshes for example stores its data both, triangulated, and the original topology. If it gets imported into a game-engine, the triangulated data will be used, if imported into a modeling tool, the original topology will be imported. This is possible with negligible storage impact.
Learn more in the STF Format Reference
Learn how STF compares to other 3d file-formats: Comparisons
Anatomy of an STF file¶
