Initial position.
Cone is pointing towards viewer.
After the viewer has moved the cone still points in the direction of the
viewer
If the viewer moves off the ground plane (XZ plane) the cone
will not point towards the viewer.
VRML 2.0 world file
[ billboardEx1.wrl ]
Code for Billboard Example 1
[ source ]
DEMO
using Liquid Reality
[billboard_LR]