I know Petrel & Ocean 2012.1 release is right around the corner. Hence I am wondering which version of Open Inventor will be used, and where I can find more information about it.
Petrel 2012.1 will be based on Open Inventor 9.0
** Full documentation of OIV 9.0
oivdoc90.vsg3d.com
** Release notes, explaining what's new :
oivdoc90.vsg3d.com/content/open-inventor-90
In particular please read the section related to .NET API Specific
** Compatibility Notes (.NET specific)
oivdoc90.vsg3d.com/node/22246#NETAPI
oivdoc90.vsg3d.com/node/18333#NETAssemblies
** New behaviour of Dispose and exceptions
oivdoc86.vsg3d.com/content/release-notes-86#OpenInventor.NET
Dispose method (since OIV 8.6) raises an exception if the node is still referenced in the scene graph. To avoid it, you should first disconnect the node from the children list of the parent. This new Dispose will also recursively visit the scene graph and call dispose on each node. It was not the case in OIV 8.1 (Petrel 2011)
You may also find interesting to read the release notes of all versions between 8.1 and 9.0 to find out what's new between OIV 8.1 (Petrel 2011) and OIV 9.0
8.5 (January 2011) : oivdoc90.vsg3d.com/node/18773
8.6 (June 2011) : oivdoc90.vsg3d.com/node/18867
You may also find interesting to read the compatibility notes of all versions
8.5 : oivdoc90.vsg3d.com/node/18333
8.6 : oivdoc90.vsg3d.com/node/18867