I have one question about this great model: The instruction sheet says 1. You have to convert the files listet below to real Bump-Maps, otherwise you will receive many warning-messages while opening the character. ColtHolster_BumpMap.jpg Hat_USAF_BumpMap.jpg Jacket_USAF_BumpMap.jpg Pants USAF_BumpMap.jpg How do I do this conversion to real Bump Maps? (I am using a Mac: the model loads after using Maconverter, but I get a lot of error messages at the start).