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Thread: A Variety Of Unreal Engine 4 Linux Demos Are Now Available

  1. #21
    Join Date
    Jul 2012
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    794

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    Works great on the latest NVIDIA driver with both the OpenGL 3.2 render path and OpenGL 4. People should just buy real graphics cards...

  2. #22
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    Jan 2013
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    1,018

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    Quote Originally Posted by blackout23 View Post
    Works great on the latest NVIDIA driver with both the OpenGL 3.2 render path and OpenGL 4. People should just buy real graphics cards...
    You mean graphics cards with "real" drivers? Like closed source nvidia-blob? Should you also buy real closed source OS? Hypocrisy much? Driver is just several years old, and already went near OpenGL4.

  3. #23
    Join Date
    Apr 2010
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    Mobile Game was beatifull on EN460GTX + i5

  4. #24
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    Oct 2007
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    21

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    Quote Originally Posted by brosis View Post
    You mean graphics cards with "real" drivers? Like closed source nvidia-blob? Should you also buy real closed source OS? Hypocrisy much? Driver is just several years old, and already went near OpenGL4.
    I hope you use an open BIOS, and open CPU microcode, and hardware schematics, and open....
    Otherwise you'd be a hypocrite.

    Seriously though, Linux has a pretty good claim to being the best OS, period. Similarly the nvidia driver is the best GPU driver. Therefore I use them both.
    It would be nice if the nvidia driver was open source, but since there are so few people with the skills and desire to improve it, I don't think it's particularly important. The situation with radeon drivers shows that it's no panacea.

  5. #25
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    Nov 2008
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    Madison, WI, USA
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    Looks like the demo that I tried (Stylized Demo) is attempting to invoke tesselation-related functionality on my radeon 5400 using r600g (GL 3.3).

    me@mymachine:~/Downloads/Stylized_Demo/Stylized Demo/Engine/Binaries/Linux$ ./Stylized
    Using binned.
    4.3.0-0+UE4 7038 3077 379 0
    Mesa: User error: GL_INVALID_ENUM in glGetIntegerv(pname=0x8e81)
    Mesa: User error: GL_INVALID_OPERATION in unsupported function called (unsupported extension or deprecated function?)
    Stylized: ../../src/glsl/ir_constant_expression.cpp:519: virtual ir_constant* ir_expression::constant_expression_value(hash_tabl e*): Assertion `op[0]->type->base_type == op[1]->type->base_type' failed.
    Aborted (core dumped)


    Looking up pname=0x8e81, I get:
    static const GLenum GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS = 0x8E81;

    Guess it's not surprising that it crashed if it's attempting to use functionality that isn't yet implemented.

  6. #26
    Join Date
    Apr 2013
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    7

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    Do they host the source files for those demos somewhere??

  7. #27
    Join Date
    Sep 2013
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    221

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    Elemental Demo (and others) don't do anything on my 7850 + radeonsi

    Code:
    Generating report for minidump
    
    Application version 1.0.0.0
     ... built from changelist 0
    
    OS version Linux 3.16.0-031600rc4-lowlatency (network name: Heretic)
    Running 4 x86_64 processors (4 logical cores)
    Exception was "SIGSEGV: invalid attempt to access memory at address 0x00000013"
    
    <SOURCE START>
    <SOURCE END>
    
    <CALLSTACK START>
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x45e25f] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x4b1d84] + some bytes
    Unknown!/lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7f2579391340] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/libLLVM-3.4.so.1(LLVMBuildBitCast+0x17) [0x7f257108b817] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x5894df) [0x7f2572fd14df] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x3445a2) [0x7f2572d8c5a2] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x3446f3) [0x7f2572d8c6f3] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x34496d) [0x7f2572d8c96d] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x344b8d) [0x7f2572d8cb8d] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x58d9c9) [0x7f2572fd59c9] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x5933b2) [0x7f2572fdb3b2] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x593494) [0x7f2572fdb494] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x1b58cf) [0x7f2572bfd8cf] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x1b6b8e) [0x7f2572bfeb8e] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x17e977) [0x7f2572bc6977] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x17b7b7) [0x7f2572bc37b7] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x182aef) [0x7f2572bcaaef] + some bytes
    Unknown!/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so(+0x8f3e5) [0x7f2572ad73e5] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x1744ec0] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x1744a73] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0xa53479] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x160deed] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x1530224] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x1571130] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x1571f93] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x5dbc49] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x5db285] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0xa5ebe5] + some bytes
    Unknown!/home/espionage724/Desktop/Elemental Demo/Engine/Binaries/Linux/Elemental() [0x5cda74] + some bytes
    Unknown!/lib/x86_64-linux-gnu/libpthread.so.0(+0x8182) [0x7f2579389182] + some bytes
    Unknown!/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f257823330d] + some bytes
    
    <CALLSTACK END>
    
    0 loaded modules
    
    Report end!

  8. #28
    Join Date
    Sep 2008
    Location
    Vilnius, Lithuania
    Posts
    2,595

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    Nice, can't wait to try some out. But not until I reinstall my PC, because it's half-broken and I don't want to break it even more...

    I also hope someone builds Unreal Tournament 4 for Linux at some point before the official alpha. That would be nice.

    Quote Originally Posted by nikiiv View Post
    Do they host the source files for those demos somewhere??
    Yeap, they should be here:
    https://github.com/EpicGames
    (Of course, you need to subscribe to an UE4 license for $20 first...)

  9. #29
    Join Date
    Feb 2014
    Posts
    88

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    -opengl4 crashes somewhere deep inside nvidia blob on all demos, while a month ago community published effects demo runs fine on it.
    Is anyone successful in running these demos on GL4?

  10. #30
    Join Date
    May 2008
    Posts
    98

    Default

    Quote Originally Posted by magika View Post
    -opengl4 crashes somewhere deep inside nvidia blob on all demos, while a month ago community published effects demo runs fine on it.
    Is anyone successful in running these demos on GL4?
    Same problem here, earlier ones were okay but not these new ones. Runs perfectly without the -opengl4 flag though.

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