Re: draw using pycairo on glut interface
Chris Barker <[email protected]>
| Newsgroups | gmane.comp.python.opengl.user |
|---|---|
| Message-ID | <CALGmxEK8VZx+mJRzmB8_3_9URaaVCP9BKxXEN=o3f9R=iCUdXA@mail.gmail.com> |
On Sun, Apr 22, 2012 at 7:40 AM, Alejandro Segovia <[email protected]> wrote: > I don't have experience with Cairo, but either if it's a software or > GPU-based renderer, There was talk of a real GPU-based Cairo back-end, but it never got far. However, there is (was) a "OpenGL" back-end that used the software renderer, and dumped the image to OPenGL as a texture. If it isn't funcional, it wouldn't be hard to do, as Alejandro points out. -Chris there might be a way to capture its output and use it as > a texture. > > If Cairo is software based, check to see if you can have it render to a byte > array or color matrix, then (after proper formatting) use that to create a > 2D texture. > > If Cairo is GPU-based, and it uses OpenGL, you should be able to have it > render to a FBO (with a texture color attachment) or Pbuffer. > > Once you have a texture, you can map it on a quad or a triangle fan aligned > to the screen. Results will be better if you use an Orthographic projection. > > I hope these ideas help. If anyone knows about Cairo, please do weight in :) > > Best, > Alejandro.- > > 2012/4/21 Prashant Saxena <[email protected]> >> >> Hi, >> >> Is it possible to draw using pycairo on glut interface? For example, >> drawing a cairo gradient surface. >> I would appreciate if some one can show some light on this topic. >> >> Cheers >> >> Prashant >> >> >> ------------------------------------------------------------------------------ >> For Developers, A Lot Can Happen In A Second. >> Boundary is the first to Know...and Tell You. >> Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! >> http://p.sf.net/sfu/Boundary-d2dvs2 >> _______________________________________________ >> PyOpenGL Homepage >> http://pyopengl.sourceforge.net >> _______________________________________________ >> PyOpenGL-Users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/pyopengl-users >> > > > > -- > http://alejandrosegovia.net > > > ------------------------------------------------------------------------------ > For Developers, A Lot Can Happen In A Second. > Boundary is the first to Know...and Tell You. > Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! > http://p.sf.net/sfu/Boundary-d2dvs2 > _______________________________________________ > PyOpenGL Homepage > http://pyopengl.sourceforge.net > _______________________________________________ > PyOpenGL-Users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/pyopengl-users > -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [email protected] ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ PyOpenGL Homepage http://pyopengl.sourceforge.net _______________________________________________ PyOpenGL-Users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/pyopengl-users