EffectOffset .ini entry - starting position?

[+swambast 601]

Hey fellow modders...

When an EffectOffset is defined for a building model in the _Types.ini (say SmokeStackEffect) - where is source of the originating start point that is offset?  For example, 0.00,-32.86,24.81:  is the offset relative to the model's pivot point, center mass, etc,?  And how is it handled for models with multiple mesh parts?  

[Wrench 9,461]

world center of the object, iirc (like the smokestack effect on the GeneratorBuilding1) . 

for the stand-alone smokestacks I've been using, it also the 0/0 point (center), but 100 meter up. Even then, they're not always perfectly centered

I assume you're using Mue's Lod View for coordinates? 

also, don't forget I have "fake smokestacks" if you need them -- for building with multiple venting solutions