 | | | Newbie texture+transparency question | Newbie texture+transparency question 2004-04-04 - By Lee Hallett
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I think I understand.
What you need to do is extract the Alpha channel and plug that into the
transparency node in the render tree. Open the rendertree and get a new node
from the drop-down men, called picker. this node lets you isolate a specific
channel, R,G,B or Alpha. You can then use this to control, in this case, the
transparency. So you should have a second branch from your image node.
Image -> Picker (default is alpha) -> Shader (e.g Phong/Lambert etc - plugged
into the transparency node)
If the alpha is wrong you can insert an 'invert' node between the picker and
transparency nodes.
Hope thats what you are after. I know it may seem overly complicated compared
to the Max way (and old SI|3D way), but the level of control and creative
options it gives you aremore than worth it.
-- --Original Message-- --
From: owner-xsi@(protected) on behalf of Marque Pierre Søndergaard
Sent: Fri 02/04/2004 02:52
To: XSI@(protected)
Cc:
Subject: Re: Newbie texture+transparency question
Thanks Jamie.
I tried quite a few of those tutorials over at Ed Harriss .com. But in the
end I just succumbed to making a separate image file with a transparency map
on. And that worked!
Thanks
Marque
>From: "Jamie" <edesignersinc@(protected)>
>Reply-To: XSI@(protected)
>To: <XSI@(protected)>
>Subject: Re: Newbie texture+transparency question
>Date: Thu, 1 Apr 2004 23:27:34 +0100
>
>Hi Marque,
>
>You need to Add the texture to your existing material, and specify the
>correct projection. This will
>produce the Decal effect I think you are after.
>
>Bags of tutorials on this over at www.edharriss.com
>
>Jamie McDonnell
>
>Animator / TD
>-- -- Original Message -- --
>From: "Marque Pierre Søndergaard" <marque_pierre@(protected)>
>To: <XSI@(protected)>
>Sent: Thursday, April 01, 2004 10:49 PM
>Subject: Newbie texture+transparency question
>
>
> > Making a good ol' .tif file as a texture with transparency keyed off in
>the
> > alpha channel was oh so simple (eventually!) in Max. It must be in XSI
>as
> > well. There must be something I am overlooking. All I get, if I enable
>the
> > alpha channel of the image, is that the alpha channel in all its
>greyscale
> > glory shows on the renders instead of the colour map.
> >
> > Please help!
> >
> > Thanks
> >
> > Marque Pierre
> >
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