AIMS Workshop Heidelberg, 9-11 March 1998 3D - The New User Interface Asbjorn Rune Ousland Telenor...

AIMS WorkshopHeidelberg, 9-11 March 1998

3D - The New User Interface

Asbjorn Rune OuslandTelenor R&D

Kjeller - Norway


Overview

• 3D use in telecom services

• Technology, standards and market

• Why 3D interfaces

• 3D conferencing

• Implication for network traffic• 3D challenges


3D in Telecom Services

• User interface to services– a “natural” environment for selecting content– replacing menu hierarchies, lists and web pages– 3D as meta-media for multimedia services

• Conferencing application– multimedia conferencing in a 3D environment– avatars and 3D objects


Technology, Standards and Market

• 3D graphics cards are now available for consumer PCs

• OpenGL - the standard for 3D visualisation

• VRML 2.0 - the standard file format

• Growing market for 3D games

• Hype is over, a more realistic market


Why 3D Interfaces?

• We live in a 3D world

• New metaphors – world, room, environment– more advanced and “rich” interfaces possible

• Natural user interaction with “real” objects

• Better and easier navigation

• More entertaining interfaces, greater user satisfaction


3D Conferencing

• Interaction in a world of avatars and objects

• Perspective and position of each user and object is recognised by all users

• Changes to the world and objects in the world is easy

• The formation of groups and sub-groups is possible

• Co-operation is facilitated by users taking different perspectives


3D Conferencing World


Network Traffic - the DOVRE Case• Client server based

• The 3D world content resides on eachclient

• Navigation creates little traffic as just positions are updated

• Sound (and video) requires a certain bandwidth

• Introduction of new content often requires high capacity

• Broadcast to clients requires bandwidth depending on compression techniques


Server

IP network

Network Traffic in DOVRE

Clients

Server updates A/V,content or position on clients

Content added:Client sends new content to server

Avatar moves:Client sends new position to server

Audio (and video):Client sends A/V to server


Challenges to 3D User Interface Design

• Need more knowledge about when and how to use it

– 3D vs 2D

• Need to know more about user behaviour in 3D

• 3D worlds is more expensive and complicated to build

• Requires skilled programming

• Integrating 2D in 3D environments complicated

• Better design and development tools needed

• Moving in 3D is complicated with 6DOF


Conclusions

• 3D is promising and opens for new and exciting interfaces

• 3D will not replace 2D

• 3D conferencing applications will create network traffic with certain characteristics

• Design and implementation of 3D is not straight forward

AIMS Workshop Heidelberg, 9-11 March 1998 3D - The New User Interface Asbjorn Rune Ousland Telenor...

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