Hello,
A proper answer to your question requires more information to be provided.
Which operating system and version are you using, if it's Linux which
distro, etc.
>From the errors you got, it looks like you don't have OpenGL properly
installed on your system.
On Fri, Mar 24, 2017 at 4:27 PM, Shailesh Tripathi <
shailesh.tripathi.ec...@itbhu.ac.in> wrote:
> Hello,
> I was trying this tutorial for learning mged "http://brlcad.org/VolumeII-
> Introduction_to_MGED.pdf". The raytrace works as expected if launched
> from graphics window. But how to launch the same from command window. I
> just typed 'rt' and it shows the following error:
>
>
>
> *Xlib: extension "GLX" missing on display ":0.0".Xlib: extension "GLX"
> missing on display ":0.0".Xlib: extension "GLX" missing on display ":0.0".*
>
>
>
>
> *fb_ogl_open: double buffering not available. Using single buffer.Xlib:
> extension "GLX" missing on display ":0.0".Xlib: extension "GLX" missing on
> display ":0.0".Xlib: extension "GLX" missing on display ":0.0".*
>
> *fb_ogl_open: Couldn't find an appropriate visual. Exiting.*
>
> *fb_open: can't open device "dev/ogl", ret=-1.*
>
> *rt: can't open frame buffer*
> *Raytrace failed.*
>
> I have installed OpenGL on my system.
>
> Also, what changes do I need to make for using raytrace using "OpenCL"
> with the command "*rt -z1*"
>
>
> Regards
> Shailesh Tripathi
>
> Shailesh Tripathi
> B.Tech. Part-IV
> Electronics Engineering
> IIT-BHU (Varanasi)
>
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--
Vasco Alexandre da Silva Costa
PhD in Computer Engineering (Computer Graphics)
Instituto Superior Técnico/University of Lisbon, Portugal
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