HelveticaFanatic wrote:
> 
> Is the height field just for the landscape? Splines can go up and down, too, so
> I assume that I should use that. This is a subway, so I think that there
> wouldn't be height fields, right?
> 
>
Yea! Your right! When I thought of a train I though of wide open spaces 
with smoke blowing as it clumb up a mountain.
But if your doing a subway Splines are better!
I used a 'sphere sweep' for a tunnel in my animation 'Free Knight Out'
     http://www.irtc.org/anims/2002-07-15.html

Have Fun!

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