vangel76andClaude Opus 5.5 f3df8f34d2 Fix #2786: the web build uses WebAssembly SIMD, so the canvas renders about 2.5x faster ...

Without simd128, vello_cpu's SIMD layer (fearless_simd) runs its scalar fallback on wasm32.
`.cargo/config.toml` now sets `-C target-feature=+simd128` for wasm32-unknown-unknown, which
trunk (packaging/web/package.sh) and `cargo xtask wasm` both pick up.

A full-frame canvas render of the issue's test drawing in headless Chrome 156 drops from 7.8 to
3.2 ms at 1400 x 900 and from 8.2 to 3.2 ms at 1920 x 1080 (median of 7 and 6 alternating runs on
a loaded machine). The canvas pixels are identical.

The web build now needs Chrome/Edge 91+, Firefox 89+ or Safari 16.4+; older browsers can no
longer load it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-11-03 00:26:21 +01:00

..

config.toml

Fix #2786: the web build uses WebAssembly SIMD, so the canvas renders about 2.5x faster

2026-11-03 00:26:21 +01:00