Previously: a mod with different versions known as "Reworked Vampire Reflection".
Updated to collect all the version into one and remove the overrides. Remove the old mod if you have it in your game.
The mod requires THE CORE LIBRARY
UPDATES: Life&Death Patch (1.110.265.1030)
Using this mod, you can change how vampires appear in your game's mirrors. By default, they never do. Under Vampire - Mirror Reflection, you may select how you want them to reflect on mirrors: only while they are not in dark form, only during the day, only in sunshine, or always.
Every choice has a tooltip, and there are no limits on perks or levels, so you can change how the vampire looks from the start.
As of late, I've been using The Sims again for something that doesn't make me angry: writing (some unpublished work), and I really needed to fix this mod. Other things are waiting to be posted when I have more time and desire to interact online.