Hi!
If you use an FBO you can just draw whatever you want into it and then grab the pixels using: http://openframeworks.cc/documentation/gl/ofFbo.html#!show_readToPixels
Hi!
If you use an FBO you can just draw whatever you want into it and then grab the pixels using: http://openframeworks.cc/documentation/gl/ofFbo.html#!show_readToPixels