# Speedtree Overlapping UV-Lighmap Problem

**URL:** <https://forums.unrealengine.com/t/speedtree-overlapping-uv-lighmap-problem/352591>\
**Category:** Community & Industry Discussion\
**Tags:** overlapping-uvs, speedtree, uv-coordinates, uv, lighting-build, unreal-engine, question\
**Created:** [April 2, 2016, 8:04am UTC](https://forums.unrealengine.com/t/speedtree-overlapping-uv-lighmap-problem/352591 "2016-04-02T08:04:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Kayhan\_Ygh](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Kayhan\_Ygh](https://forums.unrealengine.com/u/Kayhan_Ygh)\
**Post date:** [April 2, 2016, 8:04am UTC](https://forums.unrealengine.com/t/speedtree-overlapping-uv-lighmap-problem/352591/1 "2016-04-02T08:04:32Z")

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Hi Everyone.  
I’m using Speedtree models for my project , I’m having this overlapping UV issue even the UVs are not overlapping and the Light Map Coordinate index seems to be right too.  
I’ve tried generating Lightmap UVs but again getting lighting error with different overlapping percentages.  
I’m really getting frustrated and fixing it is taking me lots of time and yet I have no results.  
Some of the models are working properly but some of them not.  
I’m using spm files bdw.  
Thanks in Advanced!

 ![84882-1.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/6/f/c6f825115f9a001301a48b543d21879171965069.jpeg)

 ![84883-2.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/9/f/99f887dbb73c52c29753d3c60b3e1c02e691382c.jpeg)

 ![84884-3.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/a/c/cacbc65facbea6642cea58202e3a0bd23ccd1cb9.jpeg)

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**Author:** ![Luos](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/luos/32/918700_2.png) [@Luos](https://forums.unrealengine.com/u/Luos)\
**Post date:** [April 2, 2016, 5:08pm UTC](https://forums.unrealengine.com/t/speedtree-overlapping-uv-lighmap-problem/352591/2 "2016-04-02T17:08:37Z")

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hmm, I dont see anything wrong with the file 😕

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<div class="post-metadata">

**Author:** ![Kayhan\_Ygh](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Kayhan\_Ygh](https://forums.unrealengine.com/u/Kayhan_Ygh)\
**Post date:** [April 2, 2016, 6:50pm UTC](https://forums.unrealengine.com/t/speedtree-overlapping-uv-lighmap-problem/352591/3 "2016-04-02T18:50:11Z")

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Well, That’s what makes me really tiered , Everything seems to be fine.☹

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**Author:** ![Luos](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/luos/32/918700_2.png) [@Luos](https://forums.unrealengine.com/u/Luos)\
**Post date:** [April 3, 2016, 10:35am UTC](https://forums.unrealengine.com/t/speedtree-overlapping-uv-lighmap-problem/352591/4 "2016-04-03T10:35:55Z")

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might be smart to post on the speedtree forums, see if anybody encountered same issue.