check WebGL_multi_draw

index.css

/*bug-in-github-api-content-can-not-be-empty*/

index.html

/*bug-in-github-api-content-can-not-be-empty*/

index.js

import * as twgl from 'https://twgljs.org/dist/4.x/twgl-full.module.js';

const vs = `#version 300 es
#extension GL_ANGLE_multi_draw : require

uniform float foo;
uniform float moo;
void main() {
    gl_Position = vec4(gl_DrawID, foo, moo, 1);
}
`;

const fs = `#version 300 es
precision highp float;
out vec4 outColor;

void main()
{
    outColor = vec4(0, 1, 0, 1);
}`;

const canvas = document.createElement('canvas');
const gl = canvas.getContext('webgl2');
const ext = gl.getExtension('WEBGL_multi_draw');
const programInfo = twgl.createProgramInfo(gl, [vs, fs]);

console.log(programInfo);


console.log(gl.getError());

jsGist.json

{"name":"check WebGL_multi_draw","settings":{},"filenames":["index.html","index.css","index.js"]}