is this a materials bug of UE4 on Ubuntu 14.04 ??

Development Rendering
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1

hello, I correctly compiled UE4 in ubuntu 14.04 and found one problem when creating a simple material with any texture (png,jpg,tga) :

Error [SM4] error: too many parameters to ‘vec3’ constructor

Error [SM4] error: ‘return’ with wrong type , in function ‘GetMaterialNormalRaw’ returning vec3

Error [SM4] warning: left-hand operand of comma expression has no effect

Error [SM4] error: ‘return’ with wrong type , in function ‘GetMaterialTranslucentMultipleScatteringExtinction’ returning vec3

Error [SM4] error: ‘return’ with wrong type , in function ‘GetMaterialWorldPositionOffset’ returning vec3

Error [SM4] error: ‘return’ with wrong type , in function ‘GetMaterialWorldDisplacement’ returning vec3

Error [SM4] warning: implicit truncation from ‘vec4’ to ‘vec2’

I compiled UE 4.7, 4.7.2 and even 4.6 but always the same problem, (in windows the material creation worked well, but my Ubuntu Machine is way more powerful),

33143-problemmaterial.png
33143-problemmaterial.png1676×1045 387 KB

please does somebody knows what I’m doing wrong ??, I’m using this machine:

Ubuntu 14.04

16Gb Ram

GTX760 with proprietary Nvidia drivers

intel core i7

clang 3.3

2

Hi Daegon666,

I’m curious if this still happens if you build it with clang 3.5. Would you try that and test?

3

I tried compiling with clang 3.5, and even did a Fresh installation of Ubuntu 14.04, only for that, but the same problem is still there, the only workaround I found is to create the materials in Windows :frowning: and, come back to Ubuntu to do the rest , I will download the latest UE4 for Linux today from github and try again…

4

Looks like HLSL-> GLSL transcrpter bugging out

5

Ok I finally solved this problem when playing with many Nvidia Drivers, for the gtx760, was like a trial and error but one driver worked well :slight_smile:

6

Please tell us what version of the driver worked, so others with a similar error can try to resolve it that way?

7

Hi amigo, the version of driver working with the GTX760 for Ubuntu 14.04 is the 346.59, I will try to test with Debian as well, I hope it works as well.