I know there is not much sense on modding on a Mac when I can not play the game on Mac. But maybe you can help me, I didn'T find anything.
I want to change some textures (the dds files). I have a nice idea for Rook. I want to make him look like a Babylyon-Rook, like this:

Most times I am working with photoshop, so I would prefer a way to make the textures in PS. However I need a Programm that shows Rook in 3D with all the changes at the same time I am changing the Textures. I am not sure if you can follow me (my English is horrible, I know)
Something like the Dreamweaver where you can change the html code and see at the same time the changes on the homepage. Like this I want to change the Texture and see the changes in 3d on Rook.