# precomputed visibility cell height

**URL:** <https://forums.unrealengine.com/t/precomputed-visibility-cell-height/350157>\
**Category:** Rendering\
**Tags:** Lightmass, precomputed-visibili, unreal-engine, question\
**Created:** [March 10, 2016, 3:59pm UTC](https://forums.unrealengine.com/t/precomputed-visibility-cell-height/350157 "2016-03-10T15:59:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Tacopancho](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tacopancho](https://forums.unrealengine.com/u/Tacopancho)\
**Post date:** [March 10, 2016, 3:59pm UTC](https://forums.unrealengine.com/t/precomputed-visibility-cell-height/350157/1 "2016-03-10T15:59:25Z")

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hello, wanted to know if you can change the height of precomputed visibility´s cells because they are too low for my character and doesnt apply to my camera , I tried changing the value of " playareaheight " from the lightmass.ini but still does not work, cheers

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**Author:** ![Tim\_Hobson](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tim\_Hobson](https://forums.unrealengine.com/u/Tim_Hobson)\
**Post date:** [March 10, 2016, 6:12pm UTC](https://forums.unrealengine.com/t/precomputed-visibility-cell-height/350157/2 "2016-03-10T18:12:09Z")

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Hi Tacopancho,

When you change it in the BaseLightmass.ini in the Engine Folder you will need to rebuild lighting afterwards for it to work.

 ![81647-pv-playerheight.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/4/8/c48b58cce64fe4a0ba785571190750e25c85cf28.png)

][1]

Once you rebuild you see this take effect if you can see your visibility cells in your project.

-Tim

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**Author:** ![Tacopancho](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tacopancho](https://forums.unrealengine.com/u/Tacopancho)\
**Post date:** [March 11, 2016, 12:55pm UTC](https://forums.unrealengine.com/t/precomputed-visibility-cell-height/350157/3 "2016-03-11T12:55:00Z")

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Works!, I forgot rebuild lightning, tank you!