# Splatting
The package provides a differentiable Bézier splatting loss.
It implements the loss described by Liu, Zhou, Zhao, and Huang in [_Bézier
Splatting for Fast and Differentiable Vector Graphics Rendering_][paper] as a
canonical Rust package.
The package is not a general renderer. Its focus is the differentiable loss:
representing Bézier geometry through Gaussian splats so vector paths can be
compared in image space while preserving gradients back to curve parameters.
The implementation should be suitable for training models that emit vector
geometry, including but not limited to type, icon, and illustration systems.
The reference implementation is [`xiliu8006/Bezier_splatting`][reference]. The
package treats that repository as the behavioral and mathematical reference,
while providing an idiomatic Rust API.
## Backend
The only supported backend is [Burn][burn]. Public APIs should be expressed in
terms of Burn tensors and should return Burn tensor losses so autodiff can trace
gradients through the splatting computation. Other tensor or autodiff backends
are out of scope.
[burn]: https://burn.dev/
[paper]: https://arxiv.org/abs/2503.16424
[reference]: https://github.com/xiliu8006/Bezier_splatting