Re: Vector behind camera

[Jeff Quan <jquan at mindspring dot com>]

On Jun 26, 2004, at 4:38 PM, Asher Dunn wrote:

> I'm still struggling with the "is this vector behind the camera?" 
> question.
> I tried "if view.camera.orientation.transform(theVector).z < 
> view.camera.z then", but this doesn't make logical sense to me, and it 
> doesn't work either.

Oops, I think I made a mistake -- you don't need to calculate the 
angle, just get the worldToObjectTransform (or is it 
ObjectToWorldTransform, I always get them confused) vector of the 
camera and do a test for whether z is positive or negative.

==
Jeff Quan
jquan at mindspring dot com

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