No problem! I've been with the modding discord for a few months now. As a note, retrotool is unfinished and material information is still lacking. As a tip, normal maps are two channel with red inverted. This means there is no Z axis for depth and must be constructed with math. Also, anything relating to Phazon gives an error and exporting skeletons isn't possible yet. That being said, retrotool will link to all associated textures when ripping models so you don't have to hunt through the texture GUIDs.
A while back, I compiled a list of the objects within DuplicateData.pak. I have attached it below. Please, expand upon it if you wish or tell me if I should do so. I have also attached the current method for displaying normal maps, courtesy of the discord.
A while back, I compiled a list of the objects within DuplicateData.pak. I have attached it below. Please, expand upon it if you wish or tell me if I should do so. I have also attached the current method for displaying normal maps, courtesy of the discord.