On Thu, 2004-10-07 at 03:48, Enrico Borrione wrote:
> thanks for the hints,
> but are you sure that OpenSG does not support such features?
> It is not that exotic to dump a rendered frame to a texture...
>
> Anyway i'll give a look to these ways too. SInce i am using linux, i'll
> try glew.
Dumping a rendered frame into a texture is easy (GrabTextureForground),
but dumping into a float texture is a different story. For that you need
a PBuffer, which is more like a Window. Given that OpenSG tries not to
deal with Window handling, that's a gray area. I'm hoping the ARB gets
their act together and finalizes the render_texture extension, which
will make all of that much easier, but so far they haven't. :(
I have some contributed code for PBuffers that does work on Windows and
Linux, but I haven't gotten around to integrating it, and I don't know
how clean or general it is. Chances for me looking at it this semester
are very slim, next looks much better.
Yours
Dirk
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