In article <38C78FBC.E0929D84@nanterre.marelli.fr>, Bouf 
<Chr### [at] nanterremarellifr> wrote:

> Chris Huff wrote:
> > 
> > Note that your solution should be <sin(degrees(bla)), 0,
> > cos(degrees(bla))>, unless you specify your angles in radians. But
> 
> It should be <sin(radians(bla), 0, cos(radians(bla)))>, isn't it ?
> Assuming bla is in degrees...

Er, yes. My explanation? I was only on my second cup of coffee this 
morning. :-)

Oh, another way to do it(assuming you are using MegaPOV) would be 
vtransform(<1,0,0>, rotate bla*y). Not necessarily the best way in this 
case, but if you are using several transformations in a row, you can 
#declare them as a transform and use that to modify both the object and 
the vector. Like this:

#declare Vect = < 1, 0, 0>;
#declare Trans =
transform {
    rotate, scale, translate...
}

object {MyObj
    transform {Trans}
}
#declare startVect = vtransform(Vect, Trans);

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

Post a reply to this message