Download COLLADA: sailing the gulf of 3D digital content creation by Remi Arnaud, Mark C. Barnes PDF

By Remi Arnaud, Mark C. Barnes

COLLADA is a COLLAborative layout task for setting up an open common electronic Asset schema for interactive 3D functions. This publication explains intimately find out how to use the COLLADA know-how in a venture using 3D resources, and eventually how one can create an efficient content material construction pipeline for the main complicated improvement. Errata are published at http://collada.org/mediawiki/index.php/COLLADA_book.

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Extra resources for COLLADA: sailing the gulf of 3D digital content creation

Example text

Within a document, elements relate to each other along canonical axes: hierarchical and referential. The document hierarchy creates a parent-child relationship. The parent element contains the nested child element exhibiting aggregation or composition of information. Document elements can also refer to other elements using an addressing scheme. There are two such addressing schemes used by COLLADA documents: Uniform Resource Identifier (URI) and Scoped Identifier (SID). In this section, we will briefly explain both of these mechanisms.

Extensible Markup Language (XML) was chosen for COLLADA because it met the development language requirements. XML is well defined by the World Wide Web Consortium (W3C®) [33] and is supported by a large number of tools and applications. It provides a standard language to describe the structure, semantics, and content of a document. XML provides a very well-defined framework for creating and storing structured information. Issues such as character sets (ASCII, Unicode, Shift_JIS) are already covered by the XML standard, making any document written in XML internationally useful.

The goal, however, was a higher-level description of COLLADA that would enable a wide range of adopters to leverage it using well-established technologies. For this approach to work, we needed to develop COLLADA using a high-level language that provided the principal features of structure and internationalization. Extensible Markup Language (XML) was chosen for COLLADA because it met the development language requirements. XML is well defined by the World Wide Web Consortium (W3C®) [33] and is supported by a large number of tools and applications.

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