v0.10.7: feature parity across Rust, JavaScript, and Python

Oct 5, 2025

v0.10.7 covers desktop and web, and makes feature parity across Rust, JavaScript, and Python an enforced build requirement. v0.11 is reserved for the upcoming iOS and Android releases.

Enforced feature parity

Every public object is documented in docs/api, every doc has an ## Example section, and the build refuses to compile if a method is missing in any binding. The JavaScript and Python examples on this site are extracted from the same healthcheck scripts that run in CI on every push.

Textures and samplers are part of the core API

Textures load from bytes, paths, or URLs:

from fragmentcolor import Renderer, Shader

renderer = Renderer()
texture = renderer.create_texture("https://fragmentcolor.org/images/logo.png")

shader = Shader.new("...your shader...")
shader.set("image", texture)
shader.set("sampler", {"filter": "linear"})

Sample counts give you MSAA with automatic resolve. Storage textures support shader-side writes. Depth textures end up in the right layout because the renderer reads your shader’s binding metadata directly.

Meshes and multi-pass without the extra setup

Shader.add_mesh() and Pass.add_mesh_to_shader() cover vertex-layout configuration. The library inspects your shader’s @location inputs and refuses to attach a mesh that doesn’t fit. Multiple meshes per pass work, instancing works, and pipelines are cached by (shader, format, sample_count), so reusing the same shader across passes is cheap.

A new Frame object combines passes into a render graph (for example, “blur-x after scene, blur-y after blur-x”), with explicit require() edges that set the order.

One interface for everything you upload to a GPU

Uniforms, uniform arrays, storage buffers, storage buffer arrays, vertex buffers, index buffers, textures, storage textures, samplers, push constants. All of them go through shader.set("path.to.field", value), and the layout is inferred from your WGSL. Push constants fall back to a uniform buffer on targets that don’t support them.

Offscreen, headless, and CI-friendly

Rendering to a TextureTarget on any platform without a window is the documented path for headless tests. Useful if you want to snapshot-test a shader, or run generative art from a cron job.

If you want to try this:

# Rust
cargo add fragmentcolor

# JavaScript
npm install fragmentcolor

# Python
pip install fragmentcolor rendercanvas glfw

Full changelog: GitHub v0.10.7.

Start here: /welcome · /api · GitHub

— Rafael