"jkennedy12" <jke### [at] cornellcollegeedu> wrote:
> "Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
> > "jkennedy12" <jke### [at] cornellcollegeedu> wrote:
> > > camera {
> > >         location Spline_Trans(Spline_1,0.0,y,0.03,0.95)
> > >         look_at Spline_Trans(Spline_1,0.2,y,0.03,0.95)
> > > }
> > > That should sum up what I want to start with. This gives me an error and sends
> > > me to the transform.inc file. Does anyone have a solution to this?
> >
> > A 3D-vector is expected both after location and look_at.
> > The Spline_Trans() macro returns a transformation, not a 3D-vector.
> >
> > If you want to apply a transformation to a 3D-vector, you can do it like this:
> >
> > #declare SplineTransform = Spline_Trans(Spline_1, 0.0, y, 0.03, 0.95)
> > #declare p0 = <0, 0, 0>;
> > #declare p0_Transformed = vtransform(p0, SplineTransform);
> >
> So if I wanted to place the camera 1 unit above the track, p0 would equal
> <0,1,0>, yes?


I would guess so (but I've never used that macro).

--
Tor Olav
http://subcube.com

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