# Displacement map

**URL:** <https://forum.kirupa.com/t/displacement-map/176119>\
**Category:** flash\
**Created:** [January 20, 2006, 2:13pm UTC](https://forum.kirupa.com/t/displacement-map/176119 "2006-01-20T14:13:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![puppy](https://avatars.discourse-cdn.com/v4/letter/p/e56c9b/32.png) [@puppy](https://forum.kirupa.com/u/puppy)\
**Post date:** [January 20, 2006, 2:13pm UTC](https://forum.kirupa.com/t/displacement-map/176119/1 "2006-01-20T14:13:55Z")

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I am trying to make displacement map for perspective correction, but so far my math goes wrong. [[COLOR=#22229c]Here’s[/COLOR]](http://img8.imageshack.us/my.php?image=dmap8pw.swf) what I’ve got; as you see, some lines are not preserved. Correct math, anybody?