On Mon, 21 Jan 2002 18:38:29 +0100, Christoph Hormann <chr### [at] gmxde> wrote:
> 
> 
> Claude Mench wrote:
> > 
> > The only program that seems to implement subsurface scatering not by a
> > fake seems to be finalrender a new plugin renderer for 3dsmax4.2.
> > 
> 
> It seems you have not completely understood this, 'real' subsurface
> scattering with the model explained in the van Jensen paper is in fact
> much more fake than participating media, of course it's much faster than
> media without serious quality problems due to some neat approximations.
> 
> Christoph
> 
> -- 
> Christoph Hormann <chr### [at] gmxde>
> IsoWood include, radiosity tutorial, TransSkin and other 
> things on: http://www.schunter.etc.tu-bs.de/~chris/

That may be true, but using media requires a number of things. Like a clear 'inside'
and
'outside' for object. In some circumstances, including using meshes, the method of
employing media could be probamatic at the very least. Not to mention that there is a
major difference between adding a single keywork like 'sub_scatter .5'  and fiddling
with
media settings, which I for one don't have a clue about. I want to be able to
realistically
model a human, but would definitely prefer not to have to spend 4 times longer trying
to
learn how to do it the hard way and getting a useful set of media to produce the
desired
effect, than I would just dropping in one or two keywords. I am not that good at
either
model buidling or the complexities of things like media. Nor being somewhat lazy am I
going to spend a lot of time playing with them to figure out how they work. Also for
those
that do 'need' it, for professional work, the extra time needed to tweak media and
render
can become expensive in terms of time needed to complete a project.

I could be wrong about it not being functionally possible in a mesh though, since I am
by no means an expert. ;)

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