The effect of changing the value of BlurLength

Zoom in on the front end of the red DirBlur wrapper and change the value of BlurLength. The larger the front end, the more blurred and unclear the model. After shrinking the red DirBlur wrapper, you can see the entire red DirBlur wrapper, and after changing the value of BlurLength, you will find that the entire red DirBlur wrapper varies with the value of BlurLength.