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Goal Offset

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Jack Napier
Goal Offset
on Sep 11, 2009 at 7:03:40 am

I have got particles moving along a curved NURBS surface using goals and animating the goalU & goalV values.

I am happy with the general result but what I want is the ability to adjust how far above the surface the particles move.

Since i want them spread out over the surface, i cannot just offset the surface, use the offset surface as the goal and hide it. Since the surface is curved, I cant use a static value for the goal Offset. Using sphrand for the goalOffset did not produce good results either.

I would imagine I need an expression to determine the surface normal based on the goalU and goalV for each particle and then offset that particle along the normal.

Appreciate any help


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