# Tesselation doesn't work on linux cooked version

**URL:** <https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690>\
**Category:** Rendering\
**Tags:** Cooking, Linux, unreal-engine, bug-report, tessellation, question\
**Created:** [November 25, 2015, 7:55pm UTC](https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690 "2015-11-25T19:55:39Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Niavok](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Niavok](https://forums.unrealengine.com/u/Niavok)\
**Post date:** [November 25, 2015, 7:55pm UTC](https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690/1 "2015-11-25T19:55:39Z")

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Tesselation on linux works very well with UE4 Editor in Selected Viewport, New Editor Windows and Standalone Game with opengl 4

However when the game is cooked UE4 failed to loas material using tesselation with this kind or errors :

```
LogStaticMesh:Warning: Adjacency information not built for static mesh with a material that requires it. Using default material instead.

```

The adjacency information seem correct and it works on windows cooked version. The cooked version use the correct Opengl version :

```
LogRHI: GL_VERSION: 4.3.0 NVIDIA 352.63
LogRHI: GL_SHADING_LANGUAGE_VERSION: 4.30 NVIDIA via Cg compiler
...
LogRHI: GL_ARB_tessellation_shader

```

Cooked version full log :

> **[Using binned.Increasing per-process limit of core file size to infinity.\[201...](https://pastebin.com/ZmuSsvU0)**
>
> Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

Editor version, tesselation working :

[http://i.imgur.com/NRQKX8h.jpg](http://i.imgur.com/NRQKX8h.jpg)

[http://i.imgur.com/jPAh2w9.jpg](http://i.imgur.com/jPAh2w9.jpg)

Cooked version, tesselation not working :

[http://i.imgur.com/6boaNNv.jpg](http://i.imgur.com/6boaNNv.jpg)

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<div class="post-metadata">

**Author:** ![StrangerGwenn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/strangergwenn/32/983202_2.png) [@StrangerGwenn](https://forums.unrealengine.com/u/StrangerGwenn)\
**Post date:** [December 3, 2015, 10:01am UTC](https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690/2 "2015-12-03T10:01:52Z")

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Upping this issue, as it hasn’t been answered in one week.

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**Author:** ![anonymous\_user\_2b03d27c](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b03d27c](https://forums.unrealengine.com/u/anonymous_user_2b03d27c)\
**Post date:** [December 3, 2015, 5:51pm UTC](https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690/3 "2015-12-03T17:51:48Z")

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Hey -

If you are using OpenGL4 / Tessellation inside the editor then when you run the cooked game you will need to run OpenGL4 there as well.

Cheers

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<div class="post-metadata">

**Author:** ![StrangerGwenn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/strangergwenn/32/983202_2.png) [@StrangerGwenn](https://forums.unrealengine.com/u/StrangerGwenn)\
**Post date:** [December 3, 2015, 5:56pm UTC](https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690/4 "2015-12-03T17:56:08Z")

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We are aware of that. Please check out the attached log file - we start the cooked game with “-opengl4” and the logs seem to indicate GL 4.3.

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**Author:** ![anonymous\_user\_2b03d27c](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b03d27c](https://forums.unrealengine.com/u/anonymous_user_2b03d27c)\
**Post date:** [December 9, 2015, 11:08pm UTC](https://forums.unrealengine.com/t/tesselation-doesnt-work-on-linux-cooked-version/339690/5 "2015-12-09T23:08:33Z")

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Hey -

I was able to create a test project and had the same results in a packaged project as shown in your screenshots. This tessellation problem has been bugged (UE-24301) for further investigation.

Cheers