Installation

npm install @galacean/engine-shader-lab

Usage

import { ShaderLab } from "@galacean/engine-shader-lab";

// Create ShaderLab
const shaderLab = new ShaderLab();

// Create engine with shaderLab
const engine = await WebGLEngine.create({ canvas: "canvas", shaderLab });

......

// Create shader by galacean shader code directly
const shader = Shader.create(galaceanShaderCode);

.......

// Run engine
engine.run()

CFG Grammar conflict detection

The Galacean ShaderLab syntax is defined using Context-Free Grammar (CFG) and is documented within the \*.y file. When modifications to the ShaderLab syntax are required, it is recommended to make changes to the existing CFG syntax file, and employ Bison to detect any potential grammar conflicts.

bison ./Parser.y -r all