hi gnat thx for you answer
im really fan of your addons submarine and missile very nice job
i have found solution in face properties and fix a probléme now my p3d works ingame
i have now one other problems with geometry lod and fire geometry lod ^^
i have read a tutorial and follow steps but this not working.
1: i copy my lod 0.000 and paste in geometry lod
2: aplly a mass of object
3: i find non convex hull and convex him
4: i find components with topology and find component
5: copy my geometry lod and paste in firegeometry lod
I've followed the right steps at the right time?