For example i changed the material textures by hex editor into vmeshdata .
First you see in hex what hex value have the material (45E798FE for example ) and search into hex for FE98E745 - thats how is written into vmeshref .
Then add the new material name into CRC hash code and replace the old material name with the new one.
But this method i made few times and it`s takes some time .
S
Snake
@Snake