When creating a crowd simulation, I have been importing geometry in the File Op as OBJ.(s). I would like to bring in pre-animated FBX files, however the File import op. doesn't look at FBX. Like Maya is there a way to add a “plug in” to allow for FBX import using the File op?

Not that I am aware of.
But you get better performance using bgeo files anyway.
So you m ight want to bake your animated FBX into a bgeo sequence and reference this in your crowd.

Aha, RDG. So what your saying is I can either write the animation using bgeo or convert an fbx animation to bgeo and then bring this into the File op. for my simulation. Expound please.

For FBX, it's under File menu > Import > Filmbox FBX…

Cheers!
steven

http://sourceforge.net/projects/cgru/ [sourceforge.net]

Not all tool are documented, yet.
But if you download a release, you can find in cgru/bin folder
“fbx2clip” - FBX to HOUDINI clip command line converter

Ultravizn
Aha, RDG. So what your saying is I can either write the animation using bgeo or convert an fbx animation to bgeo and then bring this into the File op. for my simulation. Expound please.

After importing your animated FBX - like Steven posted - you would use a ObjectMergeSOP to merge the FBXnetwork into a new SOP.
In the ObjectMergeSOP set the options to merge @Into This@ object.
The Object to import would be something like: /obj.myFBX/*

Now add a FileSOP and write the Geometry do disk.
To get a file sequence put a $F into the filename like: myAnim.$F.bgeo

Hope this helps.
Georg

Thank you one and all for your solutions
-Ultravizn