public class ProcessingMotionBlur : ProcessingBase, ITick
    {
        public Group<ComponentMotionBlur, ComponentView> groupMotion;


        public ProcessingMotionBlur()
        {
            groupMotion.Remove += entity =>
            {
                var cMotionBlur = entity.ComponentMotionBlur();

                var len = cMotionBlur.length;

                for (int i = 0; i < len; i++)
                {
                    cMotionBlur.renderers[i].gameObject.Release();
                }


                cMotionBlur.length = 0;
                cMotionBlur.lengthEmpty = 0;
            };
        }


        public void Tick()
        {
            var delta  = Time.delta;
            var frames = Time.frame;

            foreach (var entity in groupMotion)
            {
                var cMotionBlur = entity.ComponentMotionBlur();
                var cView       = entity.ComponentView();

                for (int i = 0; i < cMotionBlur.length; i++)
                {
                    var index = cMotionBlur.length - 1 - i;
                    var rend  = cMotionBlur.renderers[i];
                    var time  = cMotionBlur.fadings[index];
                    var color = rend.color;

                    if (color.a == 0) continue;
                    color.a = color.a.Minus(delta / time);

                    rend.color = color;
                    if (color.a == 0)
                    {
                        cMotionBlur.lengthEmpty++;
                    }
                }

                if ((cMotionBlur.time = cMotionBlur.time.Minus(delta)) == 0)
                {
                    if (cMotionBlur.length <= cMotionBlur.lengthEmpty)
                    {
                        entity.Remove<ComponentMotionBlur>();
                    }

                    continue;
                }

                if (frames.Every(cMotionBlur.step))
                {
                    var renderer = entity.Populate<SpriteRenderer>("Obj Motion Blur", cView.parts[0].renderer.transform.position, cView.parts[0].renderer.transform.rotation);
                    var l        = cMotionBlur.length++;
                    cMotionBlur.fadings[l] = cMotionBlur.timeFade * (l + 1) * cMotionBlur.timeOffset;
                    cMotionBlur.renderers[l] = renderer;
                    renderer.color = cMotionBlur.color;
                    renderer.sprite = cView.parts[0].renderer.sprite;
                    var transform = renderer.transform;
                    var scale     = transform.localScale;
                    scale.x = cView.facing;
                    transform.localScale = scale;


                    if (cMotionBlur.length == 128)
                    {
                        var len = cMotionBlur.length << 1;
                        Array.Resize(ref cMotionBlur.renderers, len);
                        Array.Resize(ref cMotionBlur.fadings, len);
                    }
                }
            }
        }
    }