RE: glCopyTexImage2D() that goes "clipped"

This is expected. The behavior of Read/CopyPixels for occluded pixels is
unspecified by OpenGL. You'll need to use PBuffers or other extensions.

Christian Laforte
www.feelingsoftware.com - 3D Graphics Consulting

> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of
> Igor Kravtchenko
> Sent: Wednesday, December 14, 2005 1:27 PM
> To: Multiple recipients of list OPENGL-GAMEDEV-L
> Subject: glCopyTexImage2D() that goes "clipped"
> 
> Hi,
> 
> I've noticed a quite annoying problem with glCopyTexImage2D() inside a
> windowed GL context (not fullscreen).
> If you use the current frame buffer for some copy to texture, the
> texture goes clipped with white pixels when
> the window doesn't fit on the screen or is minimised.  This only happens
> on ATI drivers as far as I've noticed.
> 
> The solution would be to use an independent pbuffer but I'm wondering if
> it exists some alternatives.
> 
> Thanks before hand,
> 
> Igor.
> 
> -----
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> --
> Author: Igor Kravtchenko
>   INET: [email protected]
> 
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----- 
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-- 
Author: Christian Laforte
  INET: [email protected]

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