If I use Reaction for a GUI to my program, am I by definition using hardware compositing, assuming I have a compositing supported graphics card? or do I need to do something else to get hardware compositing?
And when Mesa becomes available, will Reaction transparently support whatever added benefits offered by Mesa compared to current hardware compositing? Or will something special need to be done for a Reaction GUI to benefit from the appearance of Mesa?
Does/will mesa have any further benefits beyond current compositing for a GUI and other 2d graphics stuff?