[Radiance-general] 'Alias' material modifier questions...

[Jeffrey McGrew]

Hello all,

So I hate to ask a stupid, basic question (yet again :)
however I've read all I can, and not being able to find
a copy of the 'Rendering with Radiance' book anywhere,
this is the only place I can turn to.

I can't figure out what application the 'alias'
material modifier is for. I understand how to
apply modifiers, and patterns, and I've read the old
tutorial, the new tutorial, the help files,
and the man pages, and still can't get my head
around what this is for or where you would apply
it.

If anyone could point me to a help file,
or just give a few quick examples of what the
alias modifier would be used for in application,
I would be incredibly grateful.

Thanks a ton,

Jeffrey