[GEM-dev] framebuffer and pix_data

[chris clepper]

GL_FLOAT is a 32 bit per component format.  .

On Sun, Jun 1, 2008 at 3:06 PM, cyrille henry <cyrille.henry at la-kitchen.fr>
wrote:

> hello,
>
> Wesley Smith a écrit :
> >> well, look like it's hopeless:
> >> http://www.opengl.org/sdk/docs/man/xhtml/glReadPixels.xml
> >> glReadPixels does not work with 16 / 32 bits color.
> >>
> >
> > What exactly do you mean by 16/32 bits color?  Do you mean per-channel
> > or combined RGBA values?
> i mean per channel.
>
>
> >  glReadPixels works with any format that I've
> > come across.  What makes you think it won't work for your situation?
>
> the doc i find there :
> http://www.opengl.org/sdk/docs/man/xhtml/glReadPixels.xml
> does not specify a format with 16/32 bit per channel.
> unless i'm misunderstand something...
>
> did your really used glReadPixels with 16 or 32 bit per channel?
> and if yes, with what type and format?
>
> thanks
> Cyrille
>
> >
> > wes
> >
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