Yes I've been doing that, but the light distribution's falloff is too rapid
(even if I play with the falloff in the render PPG). Its like a hack. And
also the fact that the FG accuracy for such small object light sources is
almost nill. I'm always dealing with over blasting right near the object or
no light at all away from the object.
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
Joe Laffey
Sent: Tuesday, May 30, 2006 5:29 PM
To: XSI(at)Softimage.COM
Subject: Objects as lights - was RE: Unwrapping chrome ball pictures...
On Tue, 30 May 2006, Martin Belleau wrote:
> As for why I'm getting into all of this, its because we have vray here at
> work, and it brings a tear to my eye. It does things with light that I
seem
> to have a real hard time doing in XSI. First off, the fact that I can't
use
> objects as light sources severely puts me at a disadvantage.
Being new to XSI I didn't want o comment on this. But you has me scared
that I just dropped a big chunk of change on XSI Advanced and a basic
feature was missing...
So I tried it out. I can easily make an object a lightsource using Final
Gathering. You just give the object incandescence. It may not be some
"physically accurate" (which is a fancy name for a rough approximation
based upon an oversimplification of the problem...) light like Maxwell
has, but it sure looks good.
I even attached a torus "light" to the camera to make that Ring Light look
that fashion photographers love so much (that look I despise...).
--
Joe Laffey | Visual Effects for Film and Video
LAFFEY Computer Imaging | -------------------------------------
St. Louis, MO | Show Reel http://LAFFEY.tv/?e01262
USA | -------------------------------------
. | -*- Digital Fusion Plugins -*-
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