> 
> Love it!   Where's the first episode? 

Thanks. The first episode, I don't think I have posted it on this ng. It 
can be seen here : http://tuabiht.chez-alice.fr/PovEdgeEx/harold1.jpg
The caption reads "Of course it was a shortcut, but Harold knew he would 
need all his vigilance to go through the roadsign fields".

>  I'm curious what approach you took
>> for making the road.
>> 

The whole ground (road + landscape) is a single parametric isosurface. 
In fact, the curve of the road in the xz plane is a parabola, and I have 
computed "local coordinates" for points on the road (U : position along 
the road, V position across the road). This a kind of analytical UV 
mapping, which allow me to get easily the texture of the road, and 
placement macro for objects on the road.

Thibaut

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