I am having a problem getting a Billboard to function correctly. My world
includes objects which may potentially be viewed from any angle (not just
from the y-z plane.) Occasionally I would like to display data about those
objects using Text2D objects floating next to them. I added a Billboard
behavior to act upon the TransformGroup associated with such an object. I
though that if I specified that the Billboard should ROTATE_ABOUT_POINT that
they would end up always facing the user. This only works correctly if the
user is in the y-z plane. If the user moves up or down in the y direction,
the Billboard does not tilt with them. In fact, the Billboard rotates about
it's y-axis, as though they'd moved in the x direction.
Is their something fundamental that I'm missing here, or does
ROTATE_ABOUT_POINT just not work, or at least not work in the way that I
guessed it worked? (Seeing as the API does leave you guessing about some
things like this... Source code ????)
John Brecht
Department of Physics and Astronomy
Michigan State University
brechtjoATpilotDOTmsuDOTedu
=====================================================================
To subscribe/unsubscribe, send mail to [EMAIL PROTECTED]
Java 3D Home Page: http://java.sun.com/products/java-media/3D/
