contrast_renderer
qemujs
contrast_renderer | qemujs | |
---|---|---|
4 | 3 | |
63 | 244 | |
- | - | |
6.1 | 10.0 | |
3 months ago | almost 5 years ago | |
Rust | C | |
MIT License | GNU General Public License v3.0 or later |
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contrast_renderer
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WebGPU Fundamentals
This is true, but there is a lot more to the story. For one, WebGPU does not (yet) support mesh shaders, though it may later as an extension. For two, consider a glyph such as "o" that has two contours. Real triangulation generates a mesh that only generates triangles between the outer and inner contours, and mesh shaders aren't good at that. There are techniques (cover and stencil) that draw twice, incrementing and decrementing a winding number stored in the stencil buffer (see contrast renderer[1] for a clean modern implementation), but it does require nontrivial tracking on the CPU side, and can result in lots of draw calls to switch between the cover and stencil stages unless sophisticated batching is done.
Compute shaders avoid all these problems and work on WebGPU 1.0 today.
[1]: https://github.com/Lichtso/contrast_renderer
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Rust: State of GUI, December 2022 – KAS blog
Thanks!
You can also checkout the "feature/ui" branch in GIT [1] to get the UI framework prototype.
[1]: https://github.com/Lichtso/contrast_renderer/tree/feature/ui
- Vector Graphics on GPU
qemujs
- Qemu.js – a proof-of-concept port of QEMU to web browser using WASM JIT (2019)
- Qemu.js – a proof-of-concept port of QEMU to web browser featuring WASM JIT
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WebGPU Fundamentals
Why not? People are already running VM's and other OS's in the browser.
https://github.com/atrosinenko/qemujs
https://jamesfriend.com.au/pce-js/ibmpc-games/
https://leaningtech.com/webvm-server-less-x86-virtual-machin...
and so on...
What are some alternatives?
nbody-wasm-sim - An N-body WebAssembly simulation using Web GPU
WebGL_Compute_shader - WebGL 2.0 Compute shader Demos
nanovgXC - Lightweight vector graphics library implementing exact-coverage antialiasing in OpenGL
caniuse - Raw browser/feature support data from caniuse.com
glyphy - GLyphy is a signed-distance-field (SDF) text renderer using OpenGL ES2 shading language.
example-apps - A collection of example apps for running in Peergos
vger-rs - 2D GPU renderer for dynamic UIs
wgpu - Cross-platform, safe, pure-rust graphics api.
msdfgen - Multi-channel signed distance field generator
wasm-kernel - Runs WebAssembly binaries on barebones x86-64 systems.
wxRust2 - re-exploration Rust binding to wx
rui - Declarative Rust UI library