Re: Building on OSMesa

Hello,

I remember I struggled with a similar situation back in 2008. It was a
commercial project in C++ and the client had the exact same requirement.

I ended up solving the issue using Qt, which we were already using anyway.
I believe the class that did the trick was QGLPixelBuffer, but don't take
my word for it, since I've forgotten the details since then.

If using Qt (PySide/PyQt) is an option for you, I would recommend you have
a look at it.

Good luck,
Alejandro.-

2012/1/6 Yuan Xu <[email protected]>

> Hi Ian,
>
> Thanks for your reply.
>
> My problem is how to set up OpenGL context without X, because the target
> application will run on a headless Linux server, and generating pictures
> without window.
>
> I think if I have PyOpenGL use Mesa only, then my problem can be solved.
>
> On Fri, Jan 6, 2012 at 12:41 AM, Ian Mallett <[email protected]> wrote:
>
>>  On Thu, Jan 5, 2012 at 9:31 AM, Yuan Xu <[email protected]> wrote:
>>
>>> Hi all,
>>>
>>> I am trying to use PyOpenGL for off-screen rendering (generating
>>> pictures), AFAIK, OSMesa is the easy (only?) way for this.
>>>
>>> I tried to access OSMesa from python via ctypes, the functions in OSMesa
>>> can be called, but PyOpenGL can not use OSMesaContext, I guess the problem
>>> is my PyOpenGL (from ubuntu rep) was not build on mesa.
>>>
>>> So, my question is how to build PyOpenGL on OSMesa, since I didn't find
>>> any instruction for configuring building.
>>>
>>> Thanks in advance!
>>>
>>> --
>>> Best Regards,
>>>
>>> Xu, Yuan
>>
>> I'm afraid I can't help with the actual question, but I'd like to remind
>> you that using FBOs for offscren rendering is easier and faster (although
>> you *do* need an OpenGL context to set it up).
>>  Ian
>>
>
>
>
> --
> Best Regards,
>
> Xu, Yuan
>
>
> ------------------------------------------------------------------------------
> Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex
> infrastructure or vast IT resources to deliver seamless, secure access to
> virtual desktops. With this all-in-one solution, easily deploy virtual
> desktops for less than the cost of PCs and save 60% on VDI infrastructure
> costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
>
>


-- 
http://alejandrosegovia.net

------------------------------------------------------------------------------
Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex
infrastructure or vast IT resources to deliver seamless, secure access to
virtual desktops. With this all-in-one solution, easily deploy virtual 
desktops for less than the cost of PCs and save 60% on VDI infrastructure 
costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox

_______________________________________________
PyOpenGL Homepage
http://pyopengl.sourceforge.net
_______________________________________________
PyOpenGL-Users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/pyopengl-users