Quick question... Based on digging through the source, it seems all PixelBufferObjects are currently automatically set to GL_PIXEL_UNPACK_BUFFER_ARB by default and there's no way to change this to GL_PIXEL_PACK_BUFFER_ARB, correct? Meaning they can only be used for writing to the framebuffer, not reading from it? The application I'm writing is going to do a lot of reading colors back from a FBO as part of a pre-processing step, and based on my limited understanding reading pixels to a PBO is supposed to be significantly faster...
Since it's a pre-processing step, speed isn't of utmost importance, but later on this step may end up being run relatively often (~1-5Hz or so), so should I try and take the time to extend osg::Image and osg::PixelBufferObject to support PACK operations or am I worried over nothing? :) -Chris B
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