I don't know how things are done in other 3D modelling softwares, but in 3D 
Studio, each effect has a seperated mapping channel.  For example, if you 
want transparency in certain areas of a texture, you need to assign a map to 
the transparency channel of that texture inorder for those certain portions 
of the latter to possess true transparency.  Usually, the map can be the same 
file as the texture itself, though you have to play around with the options a 
bit so that the transparency is based on the Alpha instead of RGB.

Check this out: http://waylon-art.com/uvw_tutorial/tut401_a.jpg
Notice the various mapping channels: ambient, diffuse, specular color, 
specular level, glossiness, self illumination; the list is quite long.

As I said, I don't know how things are done in other 3D modelling softwares.  
Your best bet will be looking for the dialog box that allows you to apply 
different effects to a texture in the 3D modelling software that you are 


On June 4, 2004 06:25 pm, Lee Elliott wrote:
> On Friday 04 June 2004 21:44, Roy Vegard Ovesen wrote:
> > Here is a shot of the King Air cockpit i'm modeling:
> >
> > http://home.tiscali.no/rvovesen/king-air-cockpit.jpg
> >
> > Also I have a question: The fuel panel texture on the left has two "semi"
> > circles that have alpha 0% (transparent) in order to show fuel level
> > gauges that are supposed to be placed slightly behind the panel. The fuel
> > level gauge that is visible on the right side of the fuel panel actually
> > has a textured face, but it is not visible through the transparent "semi"
> > circle. Note that the "Fuel system circuit breakers" panel texture is
> > visible through the transparent "semi" circle.
> >
> > The fuel level gauge has been included in the model xml file as a <model>
> > tag. Could this be the reason why the gauge face texture is not visible?
> > I believe David Megginson's Piper cockpit uses the same technique: A
> > panel texture with transparent "holes" and instruments behind those
> > holes, so I guess it should be possible.

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