Tesselation doesn't work on linux cooked version

Development Rendering
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1

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 :

Editor version, tesselation working :

http://i.imgur.com/NRQKX8h.jpg

http://i.imgur.com/jPAh2w9.jpg

Cooked version, tesselation not working :

http://i.imgur.com/6boaNNv.jpg

2

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

3

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

4

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.

5

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