Thorsten Froehlich <tho### [at] trfde> wrote:

> These are different objects. A height_is is *not* represented as a mesh, it
> is just traced as if it were a mesh. In particular note that the
> documentation says a height field is solid, not a finite patch.

That's true; I guess I didn't understand the true difference between them.
Thanks.
>
> > So it seems that a height_field is the only
> > "triangle-based open surface" object that does this.
>
> Because it is a finite solid, not a finite patch. I am pretty sure the
> documentation somewhere...explains the
> plane below.

I haven't seen that, but I'll look more closely--perhaps at the on-line
documentation, rather that POV's own help files. (The only similar thing I
*have* seen in the docs is the disc/plane description.)

Ken

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