I am wondering if somebody can help me with this problem -
I've tried to set a the texture within an instance of the Appearance class
for a Java3D object by using this:
Appearance floorApp=new Appearance();

Howdy,
 I need to be able to deturmine whether points are inside a 3D
object.  Also I need to deturmine the intersection points of a 3D line
and a 3D object.  I don't really need to display these objects

Hi people,
Anyone know why when I put together a simple 4 wall quad array to be used as
a room, only the last wall in the array seems to react to collisions?

  I want to create a simple display that will read data from an
external source and show update of an obects position in 3d.   For
example, read a file containing (x,y,z) values and show a particles
movement.  I have looked through several examples and looked at

i'm attempting to write a rendering engine but i'm stuck.
what i can't figure out is how to compute where a ray hits the visual
screen.
for example:

I'm not sure if this is the right gorup to be posting to, som my
apologies if this isnt relevent.
I'm a 2nd year Computer Science Student and I've just been set an
assignment on a java unit im taking.