Difference between revisions of "X3D Binary Compression Capabilities and Plans"
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* Approved ISO standard [http://www.web3d.org/files/specifications/19776-3/V3.2/Part03/X3D_Binary.html Compressed Binary Encoding (CBE) for X3D] | * Approved ISO standard [http://www.web3d.org/files/specifications/19776-3/V3.2/Part03/X3D_Binary.html Compressed Binary Encoding (CBE) for X3D] | ||
| − | ** .x3db file extension | + | ** *.x3db* file extension |
| − | ** | + | ** Based on ISO standard [http://en.wikipedia.org/wiki/Fast_Infoset Fast Infoset (FI)] for XML compression |
| − | ** | + | ** Two independent open-source implementations in Java ([http://www.xj3d.org Xj3D]) and C++ ([forge.collaviz.org/community/xiot XIOT X3D Input Output Tool] library) |
* CAD Distillation Filter (CDF) technique allowing successive refinement of large X3D scenes into tighter X3D scenes | * CAD Distillation Filter (CDF) technique allowing successive refinement of large X3D scenes into tighter X3D scenes | ||
Revision as of 15:19, 10 December 2011
X3D Binary Compression Capabilities and Plans
- 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 in Java (Xj3D) and C++ ([forge.collaviz.org/community/xiot XIOT X3D Input Output Tool] library)
- CAD Distillation Filter (CDF) technique allowing successive refinement of large X3D scenes into tighter X3D scenes
- 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 will include compatibility with CDF techniques, XML Encryption and XML Digital Signature for author authentication
- This meets most needs of digital authors for digital rights management
- Some capabilities for network flexibility
- Anchor, Inline, LOD and Prototypes for successive retrieval of content
- Willing to consider integration of progressive mesh technologies, perhaps by a Call for Contributions
- Patented technologies can be considered, but only if eventual use will be royalty free for X3D use (if accepted)
- Web3D's X3D and CAD Working Groups each have 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 3D transmission format
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Our current specification is online via the Most Recent Standards page: http://www.web3d.org/realtime-3d/specification/current http://www.web3d.org/files/specifications/19776-3/V3.2/ http://www.web3d.org/files/specifications/19776-3/V3.2/Part03/X3D_Binary.html
