Presagis

The following is an outline of a topic discussed at the OpenFlight User Group Meeting I/ITSEC 2009.
We invite your comments…

Problem:
—Large (typically “tiled”) databases are composed of many OpenFlight files.  e.g., x-ref tiles of a master database file
—Disk access time to load can be prohibitive to runtime just because of operating system constraints

Proposed Solution:
—Add a “directory” record to OpenFlight which contains “offsets” to locate tiles/entities contained in file
—New File Open/Save Interface in Creator/OpenFlight API

Notes from discussion:
“Directory” Records at “root” of file could also be used to contain:
—Master Palettes for all entities/models that follow - in which case entity/model could omit that palette record (and inherit from the master palette)
—Other “context” data for all entities/models that follow

I am trying to see if I understand this correctly. Would this be basically loading a template for a particular OpenFlight file? In other words, the light point appearance, texture palette, color palette, etc… could be referenced in a separate file? Or is this trying to help loading a file that has tons of External References by not loading them to begin with?