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Extended 3D
Presented by
Petar Chobanov chobanov_at_in.tum.de
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Plan
Web 3D

• Fundamentals
• X3D Requirements
• X3D Proposals
• Weaving X3D into Web Pages
• X3D ML / XML

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X3D is a Trademark of theWeb3D Consortium
Web 3D

• Web3D Consortium
• The Web3D Consortium is the ONLY industry forum
  for defining Open Standards for 3D on the Web.
• Web3D Consortium is the same organization that
  developed VRML. As the successor to VRML, X3D
  allows 3D content to be expressed through the
  XML.
• X3D is the newest of all Web3D technologies.
• Home Page http//www.web3d.org

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Members are Industry Leaders
Web 3D
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X3Ds Extensible Architecture
Web 3D

• VRML 97 is first profile.
• X3D will consist of a reasonably sized core (
  between the sizes of Flash and RealPlayer ).
• ADD Components to create market-targeted
  Profiles
• X3D plug-in would Read the profile identifier at
  the start of a X3D file, determine which
  components it needed, and get them.
• Some new Capabilities profiles support for
  higi-quality rendering, higi-performance
  rendering and large data sets.

VRML 97Profile
Preserves VRML97 content
X3DCore
Small download, compact browser
Cooperative framework to implement and
distribute future components and profiles
Extension Framework
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Primary Target Applications
Web 3D

• E-commerce Product and TechnologyDemonstration
  Visual Simulation Database Visualization
  (Large-scale of data) Advertising and Web Page
  Animation Training (Education and other uses of
  3D on the Web) Multi-User (Virtual meetings)

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X3D (VRML-NG) Requirements
Web 3D

• Market Requirements
• VRML 97 Compatibility (through converters or
  profiling).
• Time to Market (sooner is better)
• File Format Issues (including streaming)
• Interoperation with Other Relevant Standards
  (including XML MPEG4)
• Component-Based Approach
• Technical Requirements
• The X3D Technical Requirements document contains
  Functional Requirements that describe what X3D
  must be able to do, as well as process
  requirements.

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Technical Requirements
Web 3D

• GENERAL Platform Independence. RealPlayer
  Streaming media. Aggressive Schedule.
  Components/ProfilesCORE Unified Typing System
  (VRML has strongly typed fields) Metadata
  Prototype Nodes Deterministic Design
  Declaration of Profiles (Name of the profile will
  be declared) Write-Once/Run-Anywhere

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Implementation
Web 3D
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Weaving X3D Into Web Pages
Web 3D

• Introducing X3D Markup Language
• (X3DML)
• X3DML Fundamentals
• Exampling the X3D Document Type
• Definition (DTD)

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Introducing X3DML
Web 3D

• To define these, ML provides concepts from the
  parent language, Standard Generalized Markup
  Language (SGML), known as Document Type
  Definitions (DTDs)
• Extensible Markup Language (XML), which specifies
  SGML features that Web markup applications share.
• XML has quickly become the most implemented of
  the W3C.
• The X3D XML tagset is a lightweight 3D media
  file format supporting an API and runtime. That
  is interoperable with 2D Web standards.

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X3DML Fundamentals
Web 3D

• VRML 97 is defined as a set of nodes and files.
• X3DML provide a set of XML entities and element
  type declaration
• X3DML is an application of a metalanguage VRML
  97 is not.
• An XML Element Type Definition can explicitly
  define a tree of elements and the members of the
  tree.
• The VRML 97 database are included in the VRML
  definition
• The XML Element Type only provides XML database.
• The implementation of related standards for X3DML
  and more integration with other emerging XML
  markup language is likely.

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X3DML Document Type Definition (DTD)
Web 3D

• Document Type Format (DTD) means to define an XML
  vocabulary
• Document type Declaration (Doctype)
• Markup Declarations (a tree of Nodes)
• Processing Instructions
• Element Type Declarations
• Special Declarations
• Attribute List Declarations
• CDATA Sections (Character Data)
• Notation Declarations
• Conditional Sections
• Character References

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X3D (VRMLNG)
Web 3D

• The next generation Open Web3D standard
• X3D will replace VRML 97 when approved as at ISO.
• Concerted action by key VRML browser companies
• Blaxxun, Nexternet, OpenWorlds, ParallelGraphics
• State-of-the-art Extensible Architecture
• Enables small core plus flexibility to meet
  diverse market needs
• Provides full compatibility with VRML 97
• Protecting existing content
• A key influencer on other industry standards
• MPEG-4, XML

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X3D Priorities
Web 3D

• Preserve VRML 97 Content
• First X3D shipments will include VRML 97 profile
• Significantly improve inter-browser conformance
• Tighter cooperation and definition of
  functionality
• Better conformance testing in short term and
  long term
• Open source reference implementations
• State-of-the-art functionality
• Advanced rendering components
• Tight integration with the next generation web
• Significant work on XML integration
• Rapid and parallel innovation for almost any
  vertical market
• Extensible framework

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The Future of Open Web3D
Web 3D

• A foundation stone in the infrastructure of the
  web
• A lingua franca for 3D broadcast and web
  applications
• Enabling for both VRML and proprietary-based
  companies

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Web 3D

• Thanks for your attention!

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