hephaestus

A backend-agnostic 2D scene renderer for data visualization, written in Rust.

Status: scaffolding. The crate defines a SceneBuilder trait and a Renderer trait. The initial backend is Vello (GPU compute via wgpu). Future backends planned: Blend2D (CPU raster), SVG, PDF.

The public surface is the intersection of what Vello and Blend2D natively support, so plotting code written against SceneBuilder runs unchanged across backends.

Quick start

cargo run --example hello
# writes examples/hello.png

Features

• vello (default) — GPU rasterizer via wgpu.
• png (default) — PNG output helper.
• blend2d, svg, pdf — placeholders; not implemented.