Tag
5 posts
shader-dsl
6 min read
Emitted WGSL/GLSL ships to gl.shaderSource with its authored vocabulary intact — no JS minifier reaches it. A Vite/Webpack-style emit-plugin pass (mangle + minify) that compacts and obfuscates the shader text, the ABI boundary it must never cross, and why compile-and-link is not enough to trust it.
shader-dsl
6 min read
The emit path of @xgis/shader-dsl grew a Vite/Webpack-style plugin seam so ship-time transforms compose without weighing on the core — and a build-only subpath so runtime-emit consumers bundle zero bytes of them. The test: dropping in a third transform (call-graph inlining) that touched no core line.
shader-dsl
6 min read
f64 and vecN<f64> as first-class shader-dsl types, emulated as two-f32 double-float pairs — same authoring syntax as f32, one lowering pass, ~48 significand bits.
compiler
6 min read
How a declarative map style becomes GPU work: lexer → parser → a Scene IR → optimization passes → codegen that emits typed shader-dsl IR (never WGSL strings), per-feature compute kernels for match(), and a gradient atlas for zoom-dependent paint.
engine
2 min read
X-GIS compiles a declarative style language into optimized WebGPU shaders — through a real compiler and a typed shader IR. Here's the shape of the system and why each layer exists.
