@thi.ng/shader-ast-glsl NPM

npm downloads

This project is part of the @thi.ng/umbrella monorepo.

About

GLSL code generator for @thi.ng/shader-ast. Currently supports GLSL ES 1.00 (WebGL) & GLSL ES 3.00 (WebGL 2).

This package is also used for shader assembly by @thi.ng/webgl.

Status

STABLE - used in production

Search or submit any issues for this package

Related packages

@thi.ng/shader-ast-js - Customizable JS codegen, compiler & runtime for @thi.ng/shader-ast
@thi.ng/shader-ast-stdlib - Function collection for modular GPGPU / shader programming with @thi.ng/shader-ast
@thi.ng/webgl - WebGL & GLSL abstraction layer

Installation

yarn add @thi.ng/shader-ast-glsl

ES module import:

<script type="module" src="https://cdn.skypack.dev/@thi.ng/shader-ast-glsl"></script>

Skypack documentation

For Node.js REPL:

# with flag only for < v16
node --experimental-repl-await

> const shaderAstGlsl = await import("@thi.ng/shader-ast-glsl");

Package sizes (gzipped, pre-treeshake): ESM: 1.39 KB

Dependencies

Usage examples

Several demos in this repo's /examples directory are using this package.

A selection:

Description	Live demo	Source
2D canvas shader emulation	Demo	Source
HOF shader procedural noise function composition	Demo	Source
WebGL & JS canvas2D raymarch shader cross-compilation	Demo	Source
WebGL & JS canvas 2D SDF	Demo	Source
WebGL & Canvas2D textured tunnel shader	Demo	Source
Entity Component System w/ 100k 3D particles	Demo	Source

API

Generated API docs

Basic GLSL code generation

import { assign, defMain, output, program, uniform, vec4 } from "@thi.ng/shader-ast";
import { GLSLVersion, targetGLSL } from "@thi.ng/shader-ast-glsl";

const glsl = targetGLSL({
    // target WebGL2
    version: GLSLVersion.GLSL_300,
    // emit #version pragma
    versionPragma: true,
    // fragment shader
    type: "fs",
    // custom prelude
    prelude: `
// custom GLSL source string injection, e.g.
#define PI 3.1415926`
});

let color: Vec3Symbol;
let fragColor: Vec4Symbol;

glsl(
    program([
        color = uniform("vec3", "color"),
        fragColor = output("vec4", "fragColor", { loc: 0 }),
        defMain(()=> [
            assign(fragColor, vec4(color, 1))
        ])
    ])
)

#version 300 es

// custom GLSL source string injection, e.g.
#define PI 3.1415926
uniform vec3 color;
layout(location=0) out vec4 fragColor;
void main() {
fragColor = vec4(color, 1.0);
}

Authors

Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

@misc{thing-shader-ast-glsl,
  title = "@thi.ng/shader-ast-glsl",
  author = "Karsten Schmidt",
  note = "https://thi.ng/shader-ast-glsl",
  year = 2019
}

License

ast canvas codegen dsl glsl gpgpu shader shader-ast typescript webgl

@thi.ng/api @thi.ng/checks @thi.ng/errors @thi.ng/shader-ast

@everything-registry/sub-chunk-914 @newfrgmnt/alma @jamieowen/webgl @thi.ng/webgl-shadertoy @thi.ng/webgl

4 months ago

4 months ago

4 months ago

5 months ago

4 months ago

5 months ago

5 months ago

5 months ago

5 months ago

5 months ago

6 months ago

6 months ago

6 months ago

6 months ago

7 months ago

7 months ago

8 months ago

9 months ago

9 months ago

9 months ago

12 months ago

11 months ago

12 months ago

11 months ago

11 months ago

11 months ago

11 months ago

10 months ago

10 months ago

10 months ago

10 months ago

1 year ago

12 months ago

12 months ago

12 months ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

1 year ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

2 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

3 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

4 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

5 years ago

6 years ago

6 years ago

6 years ago

6 years ago

6 years ago

6 years ago

6 years ago

6 years ago

6 years ago

6 years ago