Function createProgram

gpu-pipeline/webgl/gl-util.js:133–152

(gl, vertexSrc, fragmentSrc)

  // Returns a wrapper class with a WebGL program and its util functions.
  function createProgram(gl, vertexSrc, fragmentSrc) {
    const vertexShader = compileShader(gl, gl.VERTEX_SHADER, vertexSrc);
    checkGlError(gl, 'Compile vertex shader');

    const fragmentShader = compileShader(gl, gl.FRAGMENT_SHADER, fragmentSrc);
    checkGlError(gl, 'Compile fragment shader');

    const program = gl.createProgram();
    gl.attachShader(program, vertexShader);
    gl.attachShader(program, fragmentShader);

    gl.bindAttribLocation(program, 0, 'position');
    gl.bindAttribLocation(program, 1, 'input_tex_coord');
    gl.linkProgram(program);
    gl.useProgram(program);

    checkGlError(gl, 'createProgram');

    return new GlProgramImpl(gl, program);
  }