Re: [PyOpenGL-Users] OSMesa in PyOpenGL?

[Alejandro S. <as...@gm...>]

On Fri, Mar 26, 2010 at 3:24 PM, Mike C. Fletcher <mcf...@vr...>wrote:

> > Is there another way to achieve off screen hardware accelerated
> > rendering with OpenGL?
> IIRC these are the currently-available methods for off-screen rendering
> (note, some may require a primary context, I don't do headless rendering
> myself):
>
>    * Pixel Buffers (pbuffers)
>    * Win32 has render-to-device-independent bitmaps and GLX has
>      render-to-GLX-pixmaps (likely OSX has something similar)
>    * Aux buffers (have to confirm they don't require a visible primary
>      context)
>    * FBOs (have to confirm that these don't require a visible primary
>      context)
>

I remember I used to do offscreen rendering (without having to open a
window) using Qt 4.3 from C++. What I would do was to create a PixelBuffer
instance (iirc) and set that as the current context.

Once set up, I would create the QApplication and have it loop forever, with
a timer going off every few seconds, calling the rendering code.

Hope this helps.

Alejandro.-

--
Alejandro Segovia Azapian
Director Algorithmia
http://web.algorithmia.net


>
> --
> ________________________________________________
>  Mike C. Fletcher
>  Designer, VR Plumber, Coder
>  http://www.vrplumber.com
>  http://blog.vrplumber.com
>
>
>
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> PyO...@li...
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
>