If We Build It, Will They Come?

World Movers

30'th January '97

Mitra

Chief Network Technology Architect

ParaGraph International Inc.

Living Worlds

• VRML Evolution 
• Scenario 
• Requirements 
• Standardization v. Innovation 
• Process 
• Technology 
• Authoring for Living Worlds. 
• More information 

VRML Evolution

• Phase 1: Geometry 
• Phase 2: Behaviors 
• Phase 3: Multi-User 

Scenario

• Bob in his art-filled living room 
• Peter and Tania arrive - knock on the door. 
• Avatars from ... 
• Tania brought a puppy 
• Discussion ensues …. voice and text 
• Whiteboard 
• Puppy left a present 

Requirements

• Shared State and Position 
• Insertion and Deletion of Objects 
• Objects independent of technology 
• Persistence - object and behavior 
• Security 
• Inter-Object communication 

Standardization v. Innovation

• Minimal standardisation for Interoperability 
• Builds on VRML2.0 
• Maximal Innovation 
• Focus - Avatars; Components; Objects; Worlds 

New Nodes

Private vs. Public

MUtech

Avatars, Objects, and Bots

• Persistence 
• Human Control 
• Sent to Neighbors or Everyone 

Message Passing

• Sending Messages 
• between Machines 
• between Nodes 
• Authenticate messages 
• Pass Text, Attributes, Files, Streams 

Authoring for Living Worlds

• Worlds 
• Select technology 
• Add Zone, PrivateZone, and MUtechZone 

Authoring SharedObjects and Avatars

• Objects 
• Add SharedObject, PrivateSharedObject 
• ROUTE fields to AssociativeStringArray 
• Add MessageHandler 
• Avatars 
• Add Selectors 

More information

• http://www.livingworlds.com 
• http://www.mitra.biz/vrml 
• news.livingworlds.com 
• http://www.paragraph.com 
• mitra@mitra.biz