Changing Guild Wars textures programmatically (1)

In this video I show the result of hooking a specific python in Guild Wars and changing the texture data. This texture data seem to only be visible when close to a vertex with said texture. 1st part of the video is with texture replaced. In the 2nd part I log out and disable the hook. In the final part I log out one more time to reenable the hook. Just to show it works. I wrote a python program using Frida. My project is called GWTerrainReplacer and is just meant to be proof of concept code and can be found on my github.