How do you attach an effect to a unit? Can you do it via ODF, or must you hex-edit the msh, or make an entirely new msh? An example of what I mean is that the bomb flans in Spira: Besaid had fire and smoke coming out of them. How does that work?

i'm a little knowledgeable on this but i can only talk about props on a prop .odf you attach effect to a hardpoint ie

AttachToHardPoint = "hp_steampipe_a"
AttachToHardPoint = "hp_steampipe_b"
AttachToHardPoint = "hp_steampipe_c"
AttachToHardPoint = "hp_steampipe_d"
AttachToHardPoint = "hp_steampipe_e"

i'm not sure if units have harpoints but you could open their .msh and search for hp_* and see

I searched for hp_* and didn't find anything. Here's something, though:

From the bomb's odf:

In particular it's ChunkTrailEffect that I'm interested in. Is that the answer?

Those were invisible chunks I added so that the unit could have an explosion (units must have chunks to explode). They were unrelated to the flame effect I had on them.

What I used to attach an effect to the units is the same thing used to attach damage effects (like sparks or flames) to vehicles. The only change I made was that the "damage effect" starts when the vehicle is at 100% (undamaged) and lasts until 0% (death). You want to do it this way (also from the ffx_inf_bomb .odf):

Thanks, but what would I set as the AttachPoint? I want the effect originating from a Wampa's torso. I'm not sure what label that has.

I'd use "bone_ribcage."

Thanks for that, Mav. Actually, I got it to work before I read your response. I went into the Wampa's lightsaber's odf and got out hp_fire_lightsabre bone_head. Anyway, this can be marked as solved.

Thanks again!