I´ll post a more or less technically interesting result (including
photons) if I can stand the waiting for it until tommorrow night,
cheers
tim
----- Original Message -----
From: "guillaume laforge" <guillaume.laforge.3d(at)gmail.com>
To: <XSI(at)Softimage.COM>
Sent: Saturday, January 27, 2007 5:59 PM
Subject: Re: photon emission shader?
Interesting feature, but I would use Sampled Environment Occlusion for this
kind of effect, or a light rig like the one from Binary Alchemy or Final
Gathering with multi bounces if the image really need to light somewhere
deep inside ( but in this case we can fake with a spotlight).
Guillaume Laforge
freelance TD | cg Artist
my blog ! http://vol2blog.blogspot.com/
On 1/27/07, Duncan Burch <duncan_burch(at)hotmail.com> wrote:
>
> Well its not super slow ;)
> I don't use it that much.
> But I just find is so handy that you can put an environment in using an
> image file.
> This can then be reflected in objects, like XSI. But it also can light
> your scene without using FG or GI. SO handy.
> You can also say, "emit photons". So your image lights your scene using
> GI.
> Surely this is a Mental ray thing, so why has maya got it, and has done
> for a while, but XSI hasn't?
>
> Dunk
>
>
> Duncan Burch
> Lead Lighter and Render TD
> www.LumiereStudios.co.uk
> +44 (0)7946013460
>
> ----- Original Message -----
> *From:* guillaume laforge <guillaume.laforge.3d(at)gmail.com>
> *To:* XSI(at)Softimage.COM
> *Sent:* Saturday, January 27, 2007 1:20 PM
> *Subject:* Re: photon emission shader?
>
> >In maya, you can emit light and photons from an enironment shader/texture
> (IBL).
>
> Is it fast ?
>
> On 1/27/07, Duncan Burch < duncan_burch(at)hotmail.com> wrote:
> >
> > Hi
> > In maya, you can emit light and photons from an enironment
> > shader/texture
> > (IBL).
> > Ive always wondered why you couldn't in XSI.
> > I know in xsi you can light a scene with an image using FG, but in maya
> > you
> > dont need FG.
> > I really miss this option in xsi.
> >
> > Dunk
> >
> > Duncan Burch
> > Lead Lighter and Render TD
> > www.LumiereStudios.co.uk
> > +44 (0)7946013460
> > ----- Original Message -----
> > From: "Tim Leydecker" < BauerOink(at)gmx.de>
> > To: <XSI(at)Softimage.COM>
> > Sent: Saturday, January 27, 2007 5:08 AM
> > Subject: photon emission shader?
> >
> >
> > > Hi guys,
> > >
> > > can´t sleep. Obviously. this means I have a chance to post
> > > a couple of threads asking for tools, tips and shaders.
> > >
> > > For a start, I´m looking for a photon emission shader,
> > > to cast photons based on a gradient/fileinput from either
> > > geometry or at least from an environment shader.
> > > (compareable to Maya´s IBL).
> > >
> > > Someone into that?
> > >
> > > How difficult would it be to create such a shader, where
> > > would I have to start, what tools would I need to do it?
> > >
> > > Cheers
> > >
> > > tim
> > >
> > >
> > >
> > >
> > > ---
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> > body:
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> > >
> >
> >
> > ---
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>
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