| <!-- |
| Any copyright is dedicated to the Public Domain. |
| http://creativecommons.org/publicdomain/zero/1.0/ |
| --> |
| <svg xmlns="http://www.w3.org/2000/svg"> |
| <!-- |
| Place the filtered rect and the filter region at (0, 0) in user space. |
| Remove the filter output before (50, 50) using a clipPath. |
| --> |
| <filter id="f" x="0%" y="0%" width="100%" height="100%"> |
| <feTurbulence type="turbulence" baseFrequency="0.01" numOctaves="1"></feTurbulence> |
| </filter> |
| <clipPath id="clip-top-left"> |
| <rect x="50" y="50" width="100" height="100"/> |
| </clipPath> |
| <rect x="0" y="0" width="150" height="150" filter="url(#f)" clip-path="url(#clip-top-left)"/> |
| </svg> |
