Silgrad Tower from the Ashes

Is it possible to change which environment map is used by a mesh while using "Apply Hilight" in nifskope?

As far as I know, it's only possible to use EnvMap and EnvMap2 - doesn't seem like it's possible to specify a custom environment map.

This link is pretty definitive when it comes to environment maps in Oblivion.

Hmm though changing the name of the material does nothing it seems, perhaps one needs to copy the mat. branch from a nif that uses a particular envmap?

I believe the difference between the two settings is that EnvMap will apply the environment maps in both exteriors and interiors (so stuff with this will look like it is reflecting the sky even if inside), while EnvMap2 will apply the environment maps in exterior only and a simpler reflection map in interiors.