I asked on the Quake Wars forum:
http://community.enemyterritory.com/forums/showthread.php?t=7315
They sort of danced around the issue and said that changes to the geometry can not be made if the UV mapping changes. Apparently the UV mapping is done in your own program, so it's your responsibility to unwrap the mesh. And if you make any changes to the geometry that your unwrapping technique can't handle, you lose texturing.
I think id's going to lose on this one. You cannot have a workflow where your terrain has to be edited in an external modeler, and can't be changed once texturing begins.
http://community.enemyterritory.com/forums/showthread.php?t=7315
They sort of danced around the issue and said that changes to the geometry can not be made if the UV mapping changes. Apparently the UV mapping is done in your own program, so it's your responsibility to unwrap the mesh. And if you make any changes to the geometry that your unwrapping technique can't handle, you lose texturing.
I think id's going to lose on this one. You cannot have a workflow where your terrain has to be edited in an external modeler, and can't be changed once texturing begins.