Building 3D Models for the Web Roll Ball Example

This example uses a TouchSensor and an interpolator, in particular PositionInterpolator. These are described on pages 127-134.

The example allows you to click on a ball and watch it roll along the edge of a plane.

Roll Ball Example

1. Log into one of the SGIs, cheetah.ma.iup.edu, jaguar.ma.iup.edu, leopard.ma.iup.edu, or puma.ma.iup.edu.
2. Change to your public_html directory:
   

   leopard 1% cd public_html

3. Copy the example from the ls499 directory and give public read access to it.
   

   leopard 2% cp /usr/people/ls499/rollball.wrl .
   leopard 3% chmod 644 rollball.wrl

4. Edit the example, adding the correct routes.
   

   leopard 1% pico rollball.wrl
   

5. View the changes in your Web browser by going to the URL http://cheetah.ma.iup.edu/~username/rollball.wrl, where username is replaced by your own username.
6. Now click on the ball and watch it roll!
7. Now modify your example to make the ball roll along the entire perimeter and back to its original position.
8. If you finish early, see if you can make the ball bounce or have two balls chase one another around the perimeter.

Maintained by H. Edward Donley <hedonley@grove.iup.edu>
Last Modified Monday, 13-Aug-2001 16:53:27 EDT