It seems I can’t use bumpmaps on models I brought over from Blender. How would I go about getting this to work?
well, i don’t really know how to do it,
but i do find a reference for this in Unity Manual.
How Do I Use Bump Maps?: http://unity3d.com/support/documentation/Manual/HOWTO-bumpmap.html
if you mean how to create what unity calls ‘bumpmaps’ in blender then you need to look into baking normal maps, for this you could either use an app such as xnormal or you could bake them in blender, although if you go with the later then you might need to invert some color channels in an app such as photoshop because in blender the up axis is z whilst unity uses the y axis as the up axis.