it seems like my scene is empty :(  
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m.moczyrog
PostPosted: 2005-12-24 20:28:00 Top
java-programmer, it seems like my scene is empty :( I'm a beginner. I know nothing more than I read in some tutorials. So
pelase be patient and forgiving ;-)

So when I try to construct the scene, the only thing I see is black and
probably empty area :( My code is similiar to what I've seen in those
tutorials but it simply isn't working, while the examples I tried gave
good results. This is code of my createScene function:
meshX and meshY are constants. int intensity[][] keeps values of y
coordinates. These values can generally be anything between 1 and 255.

public BranchGroup createScene()
{
TransformGroup tg = new TransformGroup();
BranchGroup objRoot = new BranchGroup();
TriangleArray tri;

for(i=0;i<meshX-1;i++)
for(j=0;j<meshY-1;j++)
{
tri = new TriangleArray(3, TriangleArray.COORDINATES);
Shape3D shape = new Shape3D();
tri.setCoordinate(0, new Point3f(i+1, intensity[i+1][j], j));
tri.setCoordinate(1, new Point3f(i, intensity[i][j], j));
tri.setCoordinate(2, new Point3f(i, intensity[i][j+1], j+1));
shape.setGeometry(tri);
tg.addChild(shape);
Shape3D shape2 = new Shape3D();
tri = new TriangleArray(3, TriangleArray.COORDINATES);
tri.setCoordinate(0, new Point3f(i+1, intensity[i+1][j+1],
j+1));
tri.setCoordinate(1, new Point3f(i+1, intensity[i+1][j], j));
tri.setCoordinate(2, new Point3f(i, intensity[i][j+1], j+1));
shape2.setGeometry(tri);
tg.addChild(shape2);

}

Transform3D cc3d = new Transform3D();
cc3d.setTranslation(new Vector3f (0f ,0f ,10f ));
tg.setTransform(cc3d);
objRoot.addChild(tg);

return objRoot;
}


can you help me?

Marcin

 
mike.jacobs
PostPosted: 2006-1-6 5:12:00 Top
java-programmer >> it seems like my scene is empty :( Marcin, Check out this article for examples
(http://jdj.sys-con.com/read/46231.htm). I notice that your code does
not include the full scene graph. Be sure you have at least an ambient
light added to see your scene.

 
 
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