 | | | Subject: Re: Newbie texturing question | Subject: Re: Newbie texturing question 2003-12-17 - By Dru Abrams
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Robert-
As has already been said, you most likely have an alpha chanel in your file
texture. Try
opening the image up in photoshop. Open up the Chanel Window (window>channel).
If you don't want to use the alpha chanel as a transparency mask you'll have to
delete the
connection btwn. the file texture and the material node. In you hypergraph,
graph the
network for the shader in question. A standard shading network would be
something like a
blinn, a file node, and a place2dTexture node. You should see 2 blue blines
going from
your file node to your blinn node (or phong, lambert...whatever). If you trace
you mouse
over each of these blue lines one at a time your should see that one says
something like
"file23.outcolor to lambert1.incolor". That's the connection that delivers the
color
information from your file texture to your material node. The 2nd blue line
should say
something like "file23.outTransparency to lambert1.inTransparency". If you
click exactly
on this blue line and then hit the "DEL" key on your keyboard you can kill this
connection.
Back in the day Maya (3? and earlier) didn't do the automatic hook up for you.
You had to
manually add an extra connection to transparency if you wanted transparency and
were
providing an alpha chanel. I think deleting the connection when you don't need
it,
nowadays, is probably quicker then adding it when you do. Maybe its just a
tradeoff and
annoying both ways.
Anyway, hope that helps. GL.
Dru
--
Dru Abrams
3D Artist
Persistent Visions
http://www.persistentvisions.com
Instructor
Expression Center for New Media
http://www.expression.edu
Robert Rusick wrote:
> David Perteet wrote:
>
> > I have a polygonal model that I'm trying to texture.
>
> > ...[W]hen I try to change the 'color' attribute to a painted .tif image,
> > it assigns the image to both the 'color' attribute and the 'transparency'
attribute.
> > What I end up with is a colored wireframe, both in the panel and in test
renders.
>
> > Any thoughts on what I'm doing wrong?
>
> Possibly "Alpha is Luminance" is checked on for your file texture node?
> ---
> Robert
>
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--
Dru Abrams
3D Artist
Persistent Visions
http://www.persistentvisions.com
Instructor
Expression Center for New Media
http://www.expression.edu
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