WEB 3D – A PEEK UNDER THE HOOD Keerti Joshi

WHAT’S THE FUTURE? Web 3.0 = ?? The Web ain't just for 2D any more !

WEB 3D What is it? Combination of two powerful forces

the internet 3D graphics

The result: interactive, realtime 3D graphics delivered over the web with applications in online gaming CAD, product demos, education, virtual tourism,

real estate, and interior design

TECHNOLOGY DRIVING WEB 3D

X3D (eXtensible 3D Graphics)–Third Generation Web3D Standard ISO open standard for (Web-enabled) interactive

3D Started in 1995 with VRML 1.0 VRML 2 or VRML 97 X3D now and in the forseable future

Aims to overcome the shortcomings of VRML

X3D ARCHITECTURE

**Img courtesy:3d image processing standards and formats

X3D FEATURESHARDWARE INDEPENDENT

X3D FEATURES (2) Backward compatible with VRML Modularized Improved APIs, more language/object model

bindings (e.g. DOM) and many clarifications to event model for better conformance

Extensible MPEG-4 has streaming interactive 3D using

VRML

SUPPORT

Encodings supported XML,VRML Classic, Binary compressed

File formats supported(jpg, png, gif, cgm,wav, midi,GeoSpatialreference frames)

Protocols(http, Distributed Interactive Simulation (DIS)

Languages(Java,ECMAScript,Preliminary work on C/C++ bindings)

X3D AUTHORING TOOLS Commercial:

VizX3D www.vizx3d.com Open-source:

X3D-Edit www.web3d.org VRML to X3D translator ovrt.nist.gov/v2_x3d.html

Exporters for Maya, 3DStudio (under development),

Blender, MilkShape www.web3d.org

X3D – WHAT IS IT FOR THE WEB? Light weight plug-ins for browsers

Flux™Player, Xj3D ™, Octaga™, BS Contact ™ Visual integration with existing web browsers

(IE) Data integration with standard web

infrastructure (XML) An open way to build on-line “worlds,”3D

documents Highly scalable Interoperable

CONCLUSION Factors enabling X3D growth

Royalty free open source Sharing between applications Availability of authoring tools and environments Easily understandable standard

X3D offers a way to do more cool things on the web- Something we all want!!

QUESTIONS?

THANKS

X3D SUPORTS 3D graphics

Polygonal geometry, parametric geometry,hierarchical transformations, lighting, materials and multipass/multi-stage texture mapping

2D graphics Text, 2D vector and planar shapes displayed within the

3D transformation hierarchy Animation

Timers and interpolators to drive continuous animations; humanoid animation and morphing

Spatialized audio and video Audiovisual sources mapped onto geometry in the scene

• User interaction Mouse-based picking and dragging, keyboard input