loadtexture will load anything in JPG, BMP or PNG format.
Your problem is most likely elsewhere. You need to be more specific with the error message you're getting, i.e. "they're not true textures" isn't a blitz error message.
Your problem is most likely elsewhere. You need to be more specific with the error message you're getting, i.e. "they're not true textures" isn't a blitz error message.