[Tutor] visualizing a point on a 3-dimensional surface

[Shwinn Ricci]

Say I have a point that I want to visualize by placing a small marker there
on the surface of an object. However, what if it's a 3-dimensional object?
Would you just use a 3-D coordinate system and then use a rotatable camera
script to wheel around and get a better view of the point?
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