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Regarding vectors:
Why do vectors (when displayed) for points on an object originate from the world space position of the point and not the origin? If a cube has a point on it (e.g. 1,1,1) then it would be reasonable to represent the vector of the point as a line drawn from the origin to the point in space. What we see is a line originating from the point in space 1,1,1 heading outwards.
If the global position of a null is brought into an ice tree, its position in space is represented as a line drawn from the origin.
This confuses me when you, for example, subtract the position of a point from the position of a null; the result is not the same as subtracting 2 nulls with the same worldspace coordinates.
I'm sure there's a very good reason for this, although I'm a little concerned that I won't be able to understand it.
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