What about making a shader to convert any normal map texture from a simple png image (Used by the game files) to actual effect in game, like the images used in GTA TXD files,
Example
We use cookies on our website. Some of them are essential for the operation of the forum. You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.