Found that on 'making 3d character work'
First issue is that the character registration won't work. Enabling the #DEFINE PLAYERS_3D line will make every script that was previously ignoring it, start to use it. But there are 3 functions that are imported from the character registration script into client_main , that will cause a problem, and the script won't compile at all, making the game crash. If you are smart and find a way to fix it, that's very nice. I just cancelled those three functions inside the client_main script, and the problem was solved for me.
But I don't find these functions...