connect light to shader 2005-03-11 - By Alan Jones
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Ahhh you're wussing out with the easy way ;-) I figured he was after a
non-pass based solution - after all the question isn't really
challenging if you use passes.
Do you think a pass-through shader could pull it off?
Cheers,
Alan.
On Fri, 11 Mar 2005 14:12:48 +0100, luc froehlicher <lulu@(protected)> wrote:
> this is very easy with passes :
> -one pure lambert
> -one with only specular soft and one light
> -one with only sharp specular and the other light
> add everyone in FXtree.
>
> luc
>
>
> Alan Jones wrote:
>
> >Hi Vic,
> >
> >Standard I'd say you can't. You could mess around with building a
> >shader with some rendertree nodes based on manipulating the incidence
> >with a given light, but that would be some stuffing around.
> >
> >As far as coding shaders for it I'm not sure about a passthrough
> >shader - it would require messing mental ray's scene database to alter
> >the array - which of course you'd need to restore afterwards. Possibly
> >doable, but I couldn't say for sure without trying it.
> >
> >Or you could build your own surface shader and have a light list as
> >one of it's parameters. This would definitely work with little
> >challenge. Actually, *insert pause for brainwave*, you might not even
> >need to code your own shader - just modify the existing phenomenon
> >inside the phong spdl to expose a light list.
> >
> >Cheers,
> >
> >Alan.
> >
> >
> >On Fri, 11 Mar 2005 10:03:42 +0000, Chris Marshall
> ><chris@(protected)> wrote:
> >
> >
> >>Vic,
> >>Could you give a bit more information about what you want to do?
> >>Thanks,
> >>Chris
> >>
> >>
> >>-- -- Original Message -- --
> >>From: Victor Luckysov <vic@(protected)>
> >>To: XSI@(protected)
> >>Sent: Fri, 11 Mar 2005 08:59:47 +0000
> >>Subject: connect light to shader
> >>
> >>
> >>
> >>>Hi All!
> >>>
> >>>How I can connect light to shader ?
> >>>is it possible?
> >>>
> >>>p.s. see the picture in mail.
> >>>
> >>>/vic/
> >>>senior animator
> >>>dr.Picture Studios www.drpicture.com
> >>>personal web: www.vic3d.com
> >>>
> >>>
> >>>
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> >>
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> >
> >
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