message: Fixes SpriteMaskFilter clear param
diff: @@ -45,8 +45,9 @@ export default class SpriteMaskFilter extends Filter
  * @param {PIXI.systems.FilterSystem} filterManager - The renderer to retrieve the filter from
  * @param {PIXI.RenderTexture} input - The input render target.
  * @param {PIXI.RenderTexture} output - The target to output to.
  + * @param {boolean} clear - Should the output be cleared before rendering to it.
  */
  - apply(filterManager, input, output)
  + apply(filterManager, input, output, clear)
  {
  const maskSprite = this.maskSprite;
  const tex = this.maskSprite.texture;
  @@ -70,6 +71,6 @@ export default class SpriteMaskFilter extends Filter
  this.uniforms.alpha = maskSprite.worldAlpha;
  this.uniforms.maskClamp = tex.transform.uClampFrame;
  - filterManager.applyFilter(this, input, output);
  + filterManager.applyFilter(this, input, output, clear);
  }
  }
  