docs: function _commitCullMode(gl, cur, next) {
    if (cur.cullMode === next.cullMode) {
      return;
    }
  
    if (next.cullMode === enums.CULL_NONE) {
      gl.disable(gl.CULL_FACE);
      return;
    }
  
    gl.enable(gl.CULL_FACE);
    gl.cullFace(next.cullMode);
  }