Torque 3D 3.7
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AbstractPolyList::setInterestNormal Method
Syntax
C++
void setInterestNormal(const Point3F& normal);

@name Interest 

This is a mechanism to let you specify interest in a specific normal. If you set a normal you're interested in, then any planes facing "away" from that normal are culled from the results. 

This is handy if you're using this to do a physics check, as you're not interested in polygons facing away from you (since you don't collide with the backsides/insides of things).

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