Vector question 
Author Message
 Vector question

What formula/function do I use to update a vector to reflect the difference
between two other vectors?
I am moving a point across/above a face, and when entering a new face
(tested using Intersect) i want to update the direction-vector of the point
to reflect the difference between the normals of the two faces (in order to
get my point to maintain a fixed path, parallel to the faces it passes).
These two face-normals I calculate by averaging (+normalizing) the normals
of the face's 3 vector-normals (by the way, is this the correct way to do
Thanks for helping (and please forgive my poor math)....

Mon, 18 Apr 2005 06:39:01 GMT  
 [ 1 post ] 

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