Hi Rich_Art,
> Would it be best to model in real world scales?? I know
> Vray works best when using real world scales.
The best thing for MoI is to model at a scale that avoids either too large or too small numeric values.
It doesn't really matter what physical scale it's at, you want to avoid doing things like generating fillets that use a radius of 0.00001 units. It doesn't matter if the units are miles, or millimeters, it's that large or small numeric value itself that you don't want to use.
So if your object has very large or very small numeric values in its real world scale then you would not want to use real world scale for that particular model.
But for a lot of things the real world scale that you would typically use can be good - like things of the size that you might find on your desk you would probably in the real world measure with centimeter units and that will yield not too large or small numeric values so that's good.
If you start to see numbers that you're trying to use that have a whole bunch of zeros in them on either side of the decimal point, then that's the kind of thing that you want to avoid and you want to work with such things at a scale where you're seeing numbers more like 50.2 rather than 0.000000052
-Michael
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