Windfoil: Closed-Form Coverage for Real-Time and Differentiable Vector Graphics
We present Windfoil, a GPU-friendly algorithm that treats rasterisation and differentiable vector graphics as two sides of the same problem by evaluating the box-filtered winding number of quadratic Bézier contours in closed form. We implement this in WebGPU, allowing it to run across a range of environments, including a web browser on a consumer laptop, and apply the system to real-time 2D rendering, high-resolution rasterisation for print media, and a differentiable renderer. We compare our renderer against Skia, a production-grade engine, and Slug, a popular GPU rasterisation algorithm for games and real-time applications, measuring fidelity to a reference box-filtered coverage. Our re...
| Authors | Matt DesLauriers |
|---|---|
| Primary category | cs.GR |
| Published | 1 October 2026 |
| Last updated at source | 1 October 2026 |
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