# Landscape Sculpting/Painting performance issues (freezing)

**URL:** <https://forums.unrealengine.com/t/landscape-sculpting-painting-performance-issues-freezing/383907>\
**Category:** World Creation\
**Tags:** performance-issues, painting, sculpt, unreal-engine, question\
**Created:** [February 4, 2017, 10:17am UTC](https://forums.unrealengine.com/t/landscape-sculpting-painting-performance-issues-freezing/383907 "2017-02-04T10:17:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gamepires](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Gamepires](https://forums.unrealengine.com/u/Gamepires)\
**Post date:** [February 4, 2017, 10:17am UTC](https://forums.unrealengine.com/t/landscape-sculpting-painting-performance-issues-freezing/383907/1 "2017-02-04T10:17:17Z")

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Since upgrading Project to v4.14, I experienced massive performance drop and freezing while sculpting/painting landscape.(as long as view hasn’t been changed there is no freezing, but once view has been moved or rotated after painting/sculpting editor freezes for a few seconds)

Only Procedural foliage (grass type) is applied on landscape. I assume source of a problem is landscape recomputing procedural foliage-grass type, Landscape height or Layer blend masks.  
I tried to disable procedural foliage generating in landscape shader. It was a bit better but still freezing.  
All these actions worked very fast and without glitches and freezing in ver. 4.13.2.

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**Author:** ![anonymous\_user\_6e7b421a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_6e7b421a](https://forums.unrealengine.com/u/anonymous_user_6e7b421a)\
**Post date:** [February 7, 2017, 4:45pm UTC](https://forums.unrealengine.com/t/landscape-sculpting-painting-performance-issues-freezing/383907/2 "2017-02-07T16:45:56Z")

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Hello Gamepires,

We saw that you posted this on the private UDN as well please respond there if you have additional questions.

For others experiencing this issue, we have logged a ticket which you can track by following the link below.

**[UE-39532](https://issues.unrealengine.com/issue/UE-39532)**

You can click on the Fix Commit link which will take you to GitHub if working with source.

Thank you,