Re: [gl4java-usergroup] nightmare. TGA Grabber. HELP!!

[Sven G. <sgo...@ja...>]

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On Mon, 13 Nov 2000, aNt wrote:
> hello everyone.
>
> well everything is running well cool :) gl4java rocks.
>
> but 'aarrrrrrr' downer... help!! I'm grabbing the gl area using:
>
> textGrab4Snapshot = new TGATextureGrabber(gl) ;
> textGrab4Snapshot.grabPixels(GL_BACK, 0, 0, cvsGetWidth(), cvsGetHeight());
> textGrab4Snapshot.write2File(fname);
>
> as in the demo...
>
> now this works great untill I make the area of GL Canvas bigger then my
> monitor screen size. then is seems to just grab the area that is drawn to
> screen not the area off the screen :(...
>
> is there anyway of grabbing stuff that's not all on the screen ?
>
> I need to do this, like real bad :(.
>

well, the opengl direct rendering context has usually just the screen size
as its maximum !

looks like you want to use OffscreenRendering (it is not that fast) -> look
into the gl4java.swing realisation for description.

Respect: Offscreen rendering & swing support was founded by "Desys GmbH",
http://www.desys.com !

> help
>
>
> aNt
>

Being peacefull - Sven
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