[Bf-committers] game-engine screenshots with occluded windows

[joe]

You could try using Mesa, yes.  The behaviour of this is different on
different cards; what
it *should* do is render into a pbuffer and not use glReadPixels() at
all.  Unfortunately that's not happening, though.

Joe

On 7/3/07, Johannes Wolter <jw at inutil.org> wrote:
> Hi,
>
> I hope I found the right mailinglist for my question. (I didn't find a
> specific game-engine list)
> My problem is, that I want to take a screenshot (using the Python API), while
> the the game-engine's window is occluded by another window or even minimized.
>
> Right now it seems to me that the Python-call "Rasterizer.takeScreenShot()"
> dumps the framebuffer with "glReadPixels". Is it somehow possible to access
> the to be displayed "image" before it is "merged" with data from other X11
> windows in the framebuffer. (Do I need the software renderer (MESA?) for this
> task?)
> As you probably see I'm not an expert in OpenGL; so thanks for any hint you
> can give me on how to solve this problem (or if it is at all possible).
>
> Cheers,
> Johannes
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