by PapaXpress » Sat Jul 14, 2012 3:24 pm
You can have a 32bit BMP with Alpha, however RWAceTool does not like them. If you need to use BMPs and you have PhotoShop you can use the ACE plugin to make them.
I can't remember for sure, but I think there is a problem with the RWAceTool using TGA with Alpha. I think it always turns it white (not really what you want).