gistfile1.txt

FXStage.prototype.drawFullScreenQuadAt = function (x, y, width, height, image, program) {
  var regl = this.regl
  program = program || this.fullscreenQuad.program
  if (!this.blitCmd) {
    this.blitCmd = regl({
      // depth: { enable: false },
      // viewport: { x: x, y: y, width: width, height: height },
      attributes: this.fullscreenQuad.attributes,
      elements: this.fullscreenQuad.elements,
      vert: regl.prop('vert'),
      frag: regl.prop('frag'),
      uniforms: {
        image: regl.prop('image')
      }
    })
  }
  this.blitCmd({
    vert: program.vert,
    frag: program.frag,
    image: image,
    imageSize: [image.width, image.height]
  })
}