code: function BlurYTintFilter()
  {
      core.AbstractFilter.call(this,
          // vertex shader
          fs.readFileSync(__dirname + '/blurYTint.vert', 'utf8'),
          // fragment shader
          fs.readFileSync(__dirname + '/blurYTint.frag', 'utf8'),
          // set the uniforms
          {
              blur: { type: '1f', value: 1 / 512 },
              color: { type: 'c', value: [0,0,0]},
              alpha: { type: '1f', value: 0.7 },
              offset: { type: '2f', value:[5, 5]},
              strength: { type: '1f', value:1}
          }
      );
  
      this.passes = 1;
      this.strength = 4;
  }
docs: The BlurYTintFilter applies a vertical Gaussian blur to an object.
  
  @class
  @extends AbstractFilter
  @memberof PIXI.filters