Hi Everybody!
I'm trying to create an open box.
For this I use several box objects to create plates, these are created using
the following code:
Primitive blk = (Primitive)new com.sun.j3d.utils.geometry.Box (
(float)dim[find(DimensionNames.UNQUALIFIED_WIDTH)]/2000,
(float)dim[find(DimensionNames.UNQUALIFIED_DEPTH)]/2000,
(float)dim[find(DimensionNames.UNQUALIFIED_HEIGHT)]/2000,
com.sun.j3d.utils.geometry.Box.GENERATE_TEXTURE_COORDS
|com.sun.j3d.utils.geometry.Box.GENERATE_NORMALS|Geometry.ALLOW_INTERSECT|
com.sun.j3d.utils.geometry.Box.ENABLE_APPEARANCE_MODIFY,//added for picking
app);
These five Box objects (plates) are joined to create a cuboid with five
faces.
I again place two small plates on the four faces of the box created above.
When I rotate this system, at some position one of the plates becomes
transparent and I can see through it.At other position one of the faces of box
becomes invisible but small plates are visible.
I'm using the following appearance node :
Appearance app = new Appearance ();
app.setCapability (Appearance.ALLOW_COLORING_ATTRIBUTES_READ);
app.setCapability (Appearance.ALLOW_COLORING_ATTRIBUTES_WRITE);
Material mat = new Material (objColor, black, objColor,white, 50.0f);
mat.setLightingEnable (true);
app.setMaterial (mat);
ColoringAttributes ca = new ColoringAttributes ();
ca.setCapability (ColoringAttributes.ALLOW_SHADE_MODEL_WRITE);
ca.setShadeModel (ColoringAttributes.FASTEST);
ca.setColor (new Color3f (0.0f, 1.0f, 0.0f));
app.setColoringAttributes (ca);
I'm using lights as recomended by the tutorial.
I've tried setting the TransparencyAttributes to make it opaque as follows
app.setTransparencyAttributes (new
TransparencyAttributes(TransparencyAttributes.BLENDED,0.0f));
I created my own Box object and generated the normals for the edges, increased
the No. of vertices but this all did'nt work.
Is it because of lighting, rendering order or Z Buffer?
How I can correct this?
Thanks
Vikas
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