>
Hi,
I'm also trying to set the appearance of a scene created from a .obj file. I
tried to follow Dan Petersen's instructions, but I couldn't work out how to
apply the appearance object to a scene read in from the file.
The problem is that when I read in the objects, they come as a hashtable
containing String and SceneGraphObject.. There aren't any functions on
SceneGraphObject to set the appearance.
My code looks like this:
Scene s = null;
try {
s = f.load(filename);
}
catch (Exception e) {
System.err.println(e);
System.exit(1);
}
Appearance appearance = createAppearance();
Hashtable hash = s.getNamedObjects();
for (Enumeration e = hash.keys() ; e.hasMoreElements() ;) {
String st = (String)e.nextElement();
System.out.println(st);
SceneGraphObject sgo = (SceneGraphObject) hash.get(s);
}
This displays the name of each part of the image, e.g. for a flower it prints:
tem_red
leaf_yellow
center_green
wrinkle_blue
petals_cyan
Can anyone tell me how I can set the appearance and display each part of the
image? Do I need to cast the SceneGraph object to some other class, or do I
need to create a Shape3D object from the SceneGraphObject and the appearance?
From,
Greg.
>
> >
> > Hi there,
> > i've got wavefront .obj file loaded into a scene. there are some shapes
> > where the front and the back must be visible. to solve this problem i want
> > to disable backface culling. how can i do this?
> > so long and ...
> > clemenTs
> >
>
> You need to create a PolygonAttributes object, turn off culling and add it
> to your Appearance object. Something like:
>
> PolygonAttributes pgonAttrs = new PolygonAttributes();
> pa.setCullFace(pgonAttrs.CULL_NONE);
> appearance.setPolygonAttributes(pgonAttrs);
>
> Dan Petersen
> Java 3D Team
> Sun Microsystems
>
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