Difference between revisions of "X3D Binary Compression Capabilities and Plans"
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* [http://www.web3d.org/x3d/workgroups/cad CAD Distillation Filter (CDF)] technique allowing successive refinement of large X3D scenes into tighter X3D scenes | * [http://www.web3d.org/x3d/workgroups/cad CAD Distillation Filter (CDF)] technique allowing successive refinement of large X3D scenes into tighter X3D scenes | ||
| + | ** Extensible, repeatable [http://www.web3d.org/files/specifications/19776-3/V3.2/Part03/concepts.html#OverviewIntroduction compression-decompression data flow/production chains] | ||
** Multiple filters implemented in open-source [http://www.xj3d.org Xj3D], [https://savage.nps.edu/X3D-Edit X3D-Edit] | ** Multiple filters implemented in open-source [http://www.xj3d.org Xj3D], [https://savage.nps.edu/X3D-Edit X3D-Edit] | ||
** Multiple other [http://www.web3d.org/x3d/content/examples/X3dResources.html#Conversions conversion and translation tools] available with supporting capabilities | ** Multiple other [http://www.web3d.org/x3d/content/examples/X3dResources.html#Conversions conversion and translation tools] available with supporting capabilities | ||
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*** Submitters can restrict patented submissions to working group while under consideration, if desired | *** Submitters can restrict patented submissions to working group while under consideration, if desired | ||
| − | * Web3D's X3D and CAD Working Groups each have member commitments to pursue this continued innovative work in 2012 | + | * Web3D's X3D and [http://www.web3d.org/realtime-3d/computer-aided-design-cad CAD] Working Groups each have member commitments to pursue this continued innovative work in 2012 |
* X3D appears to have have an '''80% solution already available''' that meets various requirements for a general 3D transmission format | * X3D appears to have have an '''80% solution already available''' that meets various requirements for a general 3D transmission format | ||
Revision as of 15:55, 10 December 2011
- Approved ISO standard Compressed Binary Encoding (CBE) for X3D
- .x3db file extension
- Based on ISO standard Fast Infoset (FI) for XML compression
- Two independent open-source implementations available
- C++ codebase: XIOT X3D Input Output Tool library
- Java codebase: Xj3D
- CAD Distillation Filter (CDF) technique allowing successive refinement of large X3D scenes into tighter X3D scenes
- Extensible, repeatable compression-decompression data flow/production chains
- Multiple filters implemented in open-source Xj3D, X3D-Edit
- Multiple other conversion and translation tools available with supporting capabilities
- X3D Canonicalization (C14N) provides standardized formatting so that digital signatures are not thwarted by whitespace variations
- Plan to add a further-improved X3D Compressed Binary Encoding using now-approved W3C Recommendation for Efficient XML Interchange (EXI)
- Web3D contributed to EXI working group and XML Binary Characterization working group efforts, ensuring that 3D Model Compression, Serialization and Transmission use-case requirements are defined and met
- Design includes compatibility with CDF techniques, XML Encryption, and XML Digital Signature for author authentication
- Relevant example scenes maintained as part of X3D Basic Examples Archive - Security
- This meets most needs of digital authors for digital rights management
- Several capabilities are available for flexible network transmission
- Anchor, Inline, LOD, LoadSensor, Script and Prototype nodes support successive retrieval of content once initial model is displayed
- Willing to consider further addition of progressive-mesh geometric streaming technologies, perhaps by a public Call for Contributions
- Intellectual Property Rights (IPR) protections for X3D specification
- Patented technologies can be considered, but only when eventual use will be royalty free for X3D use (if eventually accepted)
- Submitters can restrict patented submissions to working group while under consideration, if desired
- Web3D's X3D and CAD Working Groups each have member commitments to pursue this continued innovative work in 2012
- X3D appears to have have an 80% solution already available that meets various requirements for a general 3D transmission format
