Bodies Burn Brightly - Fire Effect and Light

With this mod, if an enemy dies while on fire, their body will remain on fire and cast a light for a little while.  That's essentially it.  If you'd prefer to have only the light or only the fire effect from this mod, these options are also available with the main download, packed as a FOMOD.

Here's what this looks like ingame:

Credit goes to gavwhittaker and samueljaybrown for the mod idea.

Installation

SPID or its VR version is a hard requirement.  Theoretically a version of this mod could be made that does not require SPID, but I think this would involve either a less performant cloaking spell approach or patching for mod-added spells.  If you'd like to have a try at anything like this, permissions are open.

This mod can be installed at any time.  It should also be safe to change between SPID files in the FOMOD at any time.  If you wish to deactivate this mod temporarily or permanently, the cleanest way to do so would be to simply delete the SPID ini and leave the plugin installed for the remainder of the save file.

Compatibility

This mod ought to work with very nearly everything else; no base-game records were edited.

Mod-added fire spells should generally work out of the box, no patch needed.

If they don't, it's probably because they either (1) don't have the MagicDamageFire keyword that spell effects need in order to work with things like this mod and perks that scale fire damage; or (2) do damage instantaneously / have a zero duration, which can slip under this mod's radar (because by the time the NPC finishes dying they are no longer technically affected by fire damage).  I currently don't have a workaround for either of these situations apart from outright editing the other mod's spells.

Performance

This mod adds one script, which is responsible for adding the burning effect to an enemy after they are killed by fire.  This script makes a single latent function call per enemy killed and should not remain attached to any body for longer than a second or two.  All of the checking for when the script should proc is done by conditions instead.  Currently I believe this is the most performant way to implement a mod like this.  I would be happy to hear any suggestions for improving it.

In my testing, I didn't get any serious lag or other issues even when killing fifty enemies at once with the Fire Storm spell (beyond the normal frame drops from that many NPCs ragdolling at once).  However I have tested it only on my machine, so please let me know if you encounter any problems.

Alternatives

If you use ENB lights, this mod will still work, but you might also consider options like ENB Light or ENB