Skip to content
Fragment Color v0.11.1
Blog

v0.10.11: direct texture writes and external video on the web

Rafael Beckel
Rafael Beckel
Maintainer

v0.10.11 introduces direct writes to textures from CPU memory, zero-copy HTML video textures on the web, and updated Python integration with RenderCanvas 2.0. It is the final desktop and web release before mobile.

Writing to textures

Section titled “Writing to textures”

Bitmap and pixel data can now be written directly into a texture, without a shader pass:

let texture = renderer.create_texture_with_size([512, 512]);
texture.write(&renderer, &pixel_bytes)?;

The API also includes Texture::write_with for partial updates with explicit origin, size, and bytes-per-row, and Renderer::update_texture / update_texture_with on the renderer side. Renderer::unregister_texture removes a texture from the registry on demand.

Sampling HTML <video> on the web

Section titled “Sampling HTML <video> on the web”

The web binding gains a zero-copy path from the browser’s video decoder via WebGPU’s texture_external:

const video = document.querySelector('video');
const texture = await renderer.createExternalTextureFromHtmlVideo(video);
shader.set('frame', texture);

This avoids the extra drawImage(video, …) step. Chromium has full support; Safari’s WebGPU has the binding too, though its API changes from time to time. Please open an issue if something behaves unexpectedly.

RenderCanvas 2.0 compatibility

Section titled “RenderCanvas 2.0 compatibility”

Renderer::create_target reads screen-present info directly from RenderCanvas and builds the surface from that, replacing the previous custom context name. Pinning an older RenderCanvas is no longer necessary.

Per-language doc overrides

Section titled “Per-language doc overrides”

The system that generates JS and Python examples from Rust doc-strings supports per-language override snippets for cases where a direct translation reads awkwardly. The texture-write pages are the immediate use case: &[u8] in Rust, Uint8Array in JS, and bytes in Python all want slightly different framing.

Mobile is next. v0.11.0 is in development.

Release notes: GitHub v0.10.11.

— Rafael

Tags: