Ok, this is how to add bump mapping to MW models. Please note that this is best on surfaces that could be damp or wet, or otherwise should be glossy. Using it on surfaces that are supposed to be dull is not recomended as the effect of using the bump mapping here always ends up with something that looks at least semi gloss like.
You can add bump map within a seconds in Nifscope. Morrowind doesn't support true bump maps, only pseudo ones, so you'll need the bump map texture and environment map texture, which will simulate the effect.
1. Open mesh in Nifscope
2. Locate NiTriShape containing the desired part of the mesh
2. Right click on NitexturingProperty -> Texture -> Add Bump Map (here goes bump map texture)
3. Right click on the NiNode containing this NiTriShape -> Node -> Attach Node -> NiTextureEffect (here goes the environment map texture)
Notes:
- left click on the NitexturingProperty, then take a look at the Block Details window. Filter mode parameter in Bump Map Texture section should be set to FILTER_TRILERP;
- a bit down Bump Map Luma Scale and Bump Map Luma Offset parameters are normally set to 1.0000, but you can play with them.
Below is the attached image showing the Block Details.