# Need help with UVewa undistort\>redistort flow **URL:** \ **Category:** Flame Questions\ **Tags:** uv\ **Created:** [November 14, 2024, 7:14pm UTC](https://forum.logik.tv/t/need-help-with-uvewa-undistort-redistort-flow/11747 "2024-11-14T19:14:05Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![cnoellert](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/cnoellert/32/559_2.png) [@cnoellert](https://forum.logik.tv/u/cnoellert)\ **Post date:** [November 14, 2024, 7:54pm UTC](https://forum.logik.tv/t/need-help-with-uvewa-undistort-redistort-flow/11747/5 "2024-11-14T19:54:30Z")
> [@c64](#): > > Have I set this up correctly? When I difference matte, the source and result match perfectly in the centre of the shot, but there is an area around the edge that is missing in the result (black area in screenshot). What am I missing here? The stmap node makes a lot of these headaches go away. If you don’t have it for some reason though… > [@ST Maps for undistort](https://forum.logik.tv/t/st-maps-for-undistort/1664/29): > > @johnt, here you go. I also simplified it even further… --- _[View the full topic](https://forum.logik.tv/t/need-help-with-uvewa-undistort-redistort-flow/11747)._