Try these steps:

1. Render the scene to an FBO
2. Render the captured buffer with an RGB to YUV shader.

-----Original Message-----
[mailto:[EMAIL PROTECTED] On Behalf Of Jon
Sent: Wednesday, February 20, 2008 3:25 AM
To: osg-users@lists.openscenegraph.org
Subject: [osg-users] Get pixels from a scene in a matrix in order to
modifypixels color

Hello all,


I would like to get pixels in a matrix of a zone in order to get colors
(yuv) and modify them.

Any way to do this quickly? 

I would like to use GPU and not CPU.

Using FBO...?


Thanks in advance.

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