Furry and moving objects

• AN

  Allen Nogee

  3/23/25, 3:38 PM

  I don't usually see this mentioned. How does the THREE work on furry objects, like animals, maybe lighter-colored ones, at least. And how about of an object moves slightly during scanning, human or animal?  I know it has a turntable synced to the scanner, but how about with use with other turntables for bigger objects not synced?  

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• TT

  M&F Staff

  M&F Staff

  Matter and Form staff

  Trevor Townsend M&F Staff

  3/24/25, 9:12 PM

  Hi Allen,

  THREE will not capture geometry very well off most furry objects. It might do a little better with light-colored fur, but it's not going to be great. 

  If the object moves during the scan, what typically happens is the scan will look like it has ridges all along it, where it should be smooth. That's with small movements. If there are large movements then the scan will be a mess.

  As you've said, the scanner uses a synced turntable, with the scanner sending commands to the turntable to move specific amounts. This could be replicated with a larger turntable, but it would require quite a bit of work to program the larger turntable to behave according to the same commands. Otherwise, it is totally feasible to use a larger turntable with "single shot" scans from THREE. Just scan, turn the turntable so that the next scan will overlap the first by about 35%, do another scan, turn the turntable again the same amount, scan, and continue until you've done the whole way around. Then in the software you'd align the 2nd scan to the 1st, then the 3rd to the combined 1+2, then the 4th to the 1+2+3, etc. It sounds like a lot of work, but it's actually not that bad. Provided you have the good overlap between the scans, the auto align will work nicely.

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