Rev. Bob's VRML JavaScript Tutorial

Problem: make a working lightbulb

• Without a script ( Text [1] | World [3] )
  • VRML Event Model [2]
• First script - click to turn on ( Text [4] | World [9] )
  Breaking this script down
  • Script lies between the sensor and the effector[5]
  • eventOuts[6]
  • eventIns[7]
  • Passed Values[8]
• Second script - click one object for on, another for off ( Text [10] | World [11] )
• Third script - click the same object and turn light on and off ( Text [12] | World [13] )
• Final script - change the appearance of the lightbulb ( Text [14] | World [15] )

Other script tricks

• initialize() method ( Text [16] | World [17] ) -- Works weirdly in Blaxxun Contact
• Call to Browser method ( Text [18] | World [19] ) -- Doesn't work in Blaxxun Contact
• Getting silly ( Text [20] | World [21] ) -- Doesn't work in Blaxxun Contact
• A fiendishly complicated script using every trick under the sun ( Text [22] | World [23] ) -- Does work in Blaxxun Contact, but you may have to back up to avoid the bot

All these examples (zipped)
Chat log from first presentation 15 April 1999
Chat log from secont presentation 18 April 1999