so the actual calculation of the variable must be done on the CPU since its a serial process anyway. Now if the variable itself requires the evaluation of computes those could be done on the GPU.
I am currently working on the framework to support this, turns out this is slightly more difficult than anticipated (but what is not?).
I'll let you know when I got it done, and send will send you some preview code then.
fix_move shouldn't be too hard to implement either, fix_deform might be a bit more tricky, but their is no principal reason why it should not work.
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