Hi Pilou,

you wrote:
> I don't see problem

If you take a look at my image above that shows what the offset should look like, you can see that although those 3 vertices in the middle are distinct, they are not terribly far apart from one another, they are fairly close together.

So at a smaller distance, the error will be kind of hard to tell just by looking at the result, you would need to measure distances between shapes instead of just looking at them to be able to detect the difference.


> Maybe Scale 3D is different than Offset?

Yes - Scale3D is definitely different than Offset, that's what I was trying to show with the illustrations here: http://moi3d.com/forum/index.php?webtag=MOI&msg=1939.20

Only in special cases like a regular polygon or a circle/sphere are they the same. This is not one of those cases - it is close but not quite.

- Michael