In article <38f99d00@news.povray.org>, "Bob Hughes" 
<per### [at] aolcom?subject=PoV-News:> wrote:

> I've skipped using the 'hf_height_at' keyword so far but I might give 
> that a try in this animation later.

I personally prefer to use trace(), since it works on any object. If you 
decide later to have a flat area on the landscape using CSG or to use an 
isosurface as the landscape, trace() will still work, but hf_height_at 
won't...
Also, you can get the surface normal with trace(), which can be useful 
for some things.

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/

Post a reply to this message