Ok, another question
I exported Armed Trawler through GR2 Editor to Blender, modified the model and imported it back. Everything went fine, except for one thing: one of hull parts keeps having its subsets switched during import back into .gr2. It goes like this:
1) Before exporting: subset0 is deck and subset1 is hull
2) In Blender: subset0 is deck and subset1 is hull
3) Exported from blender to .obj: subset0 is deck and subset1 is hull
4) After importing back to .gr2 file in GR2 Editor, suddenly:
subset0 is hull and subset1 is deck...
This causes each subset to use wrong material, and even if I switch the materials in GR2 editor, it seems only gr2 editor recognizes it - in Goblin, and in game, ship keeps using wrong materials for both subsets.
All other parts, which I exported/imported exactly the same way, work fine. I tried turning on the "force subset ordering" option, but it just gives me an "invalid input" error.