Hi,

I have a scene created in Max with a free camera and a target camera.  I get them oriented similarly and I notice in the FBX export, I get the following properties:

Free Camera:

Properties70:  {
P: “PreRotation”, “Vector3D”, “Vector”, “”,-90,0,0
P: “PostRotation”, “Vector3D”, “Vector”, “”,-0,-90,0
P: “Lcl Rotation”, “Lcl Rotation”, “”, “A+”,90,0,0
}

Target Camera:

Properties70:  {
P: “PreRotation”, “Vector3D”, “Vector”, “”,-90,0,0
P: “Lcl Translation”, “Lcl Translation”, “”, “A”,-10,0,0
P: “Lcl Rotation”, “Lcl Rotation”, “”, “A”,90,0,0
}

Note that I’ve deleted other props that aren’t related.

I was wondering where the -90 y post-rotation comes from.  Anybody know?  Hopefully I haven’t missed anything obvious!!  :)

Thanks,

Will

FBX is used to exchange data between DCC softwares. The initial FBX camera is designed from MotionBuilder, which is incompatible with 3ds Max, Maya, etc. So when export camera from Max or Maya, we will add a post rotation automatically.
Attention should be paid to this if you develop FBX importer or exporter.

Nian Wu
AutoDesk FBX Team