Windfoil: Closed-Form Coverage for Real-Time and Differentiable Vector Graphics
Read the original on arXiv Computer Vision →Windfoil is a GPU-friendly algorithm that unifies rasterisation and differentiable vector graphics by evaluating the box-filtered winding number of quadratic Bézier contours in closed form. Implemented in WebGPU, it runs across diverse environments—from web browsers on consumer laptops to high-resolution print media—and supports real-time 2D rendering, high‑resolution rasterisation, and differentiable rendering. Compared to production engines like Skia and game‑oriented rasterisers such as Slug, Windfoil achieves closer fidelity to a reference coverage while maintaining comparable performance, and it outperforms DiffVG and Bézier Splatting in reconstruction quality at a fraction of the per‑step cost, scaling to tens of thousands of shapes at interactive rates.
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