Actually, I'm curious about this too as I want to do something like this in the future. My problem is that most of the hardware/software I work with doesn't have hardware acceleration for the accumulation buffer so the performance is too slow. So what is the approach to this without the accumulation buffer?
Thanks, Eric
You want to use the accumulation buffer. See osgmotionblur for example. Just run osgmotionblur cow.osg to see if the effect works for you. Zach I'd like some of the objects in my scene tree to not be erased from frame to frame. If I move a small object marked this way across the scene, it'll leave a trail behind it. I'm not sure how to go about it.
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