For a character that wears a hood about 50% of the time outdoors, that one better have hair under the hood.  +Immersion

LOAD ORDER:

This mod must overwrite ANY other mods that change Serana.

User Keitsoru reported that BOSSE changes Serana and causes her to be bald. According to the mod author, Kalambre, you should make an exemption for Serana so she does not get affected by BOSSE. The HDT-SMP hair is now build into the FaceGenData, so Serana should not be bald anymore with BOSSE.

Do not install Zhalroth's "Serana - Hair Physics" patch with this mod.

Higher numbered mods must overwrite lower numbered mods:

#1 - Seranaholic 1.8 (required for textures, etc) or 1.8 compatible AIO mod
#2 - Hood Plus Hair for HDT SMP Hair Physics Serana

Use a mod manager like Vortex.
https://www.nexusmods.com/site/mods/1

The ESP is ESL flagged, mimics all records from Seranaholic to allow the hair color change for compatibility with AIO mods, modifies the hood item to show ears etcetera, and adds KSWigsCassyAA to Serana just like Zhalroth's mod does now does not include hair in the hood item. The short Cassy hair can get away with not replacing the hair since no hair hangs below the hood. The hair physics will no longer be reset when the hood is equipped and removed as a bonus.

UPDATING THIS MOD:

Starting with version 1.3, this mod changes Serana's facegen headpart content.

If you are on an existing save and have met Serana before upgrading to v1.3 or higher:
1) be near and look at Serana,
2) open the console,
3) click on Serana so her ID shows up near center of screen, &
4) run command "disable" and then "enable" without closing the console.

Serana should disappear and reappear and she should look correct.

COMPATIBILITY WITH OTHER REPLACERS:

Don't try it. The very fabric of reality may be torn asunder.

Ok. If it uses KS Hairdos Cassy with HDT SMP physics and does not edit Serana's NPC record, then it may work.

This mod is a standalone extension of Seranaholic and Valerica - Hair Physics Patch (KS Hairdos - HDT SMP).

Version 1.1+ cannot be used with the Serana patch of Seranaholic and Valerica - Hair Physics Patch (KS Hairdos - HDT SMP).

This mod replaces Seranaholic's ESP to make it lightweight. So, the patch would be applied to this mod. Don't let that happen.

RECOMMENDED MODS:

The Eyes Of Beauty - Vampire Eyes SSE
https://www.nexusmods.com/skyrimspecialedition/mods/15910

^ The glowing red version was used in the screenshots.

OTHER MODS:

Hood Plus Hair for Seranaholics
https://www.nexusmods.com/skyrimspecialedition/mods/40175

Hood Plus Hair for Vanilla Dawnguard
https://www.nexusmods.com/skyrimspecialedition/mods/41082

Hood Plus Hair for High Poly Vanilla Hair Serana
https://www.nexusmods.com/skyrimspecialedition/mods/43005

Hood Plus Hair for VHR Serana
https://www.nexusmods.com/skyrimspecialedition/mods/43046

Hood Plus Hair for Pandorable's Serana
https://www.nexusmods.com/skyrimspecialedition/mods/40972

Hood Plus Hair for Serana Re-Imagined
https://www.nexusmods.com/skyrimspecialedition/mods/43495

Hood Plus Hair for LeelooMinai Serana
https://www.nexusmods.com/skyrimspecialedition/mods/45740

HISTORY:

According to file timestamps, I first started playing around with making this mod around September 3, 2020.

Carbo16 first requested this mod on 30 September 2020.

I had some trouble getting Serana to not melt from this mod that delayed release. Cassy_HOOD.xml builds on Ousnius' KSWigsCassy HDT configuration without interfering with the cassy wig, adds support for collision with the hood, and adds tracking of the clavicle bones so HDT does not melt Serana.

As of v1.1, this mod has a FOMOD installer with weight choices and this mod's ESPFE replaces Serana.ESP to reduce the number of mod slots used. It replaced all of it's functionality anyway. Seranaholic is still required for assets. Doing so broke compatibility with Zhalroth's "Serana - Hair Physics" patch. The Valerica one should still work.

May 21, 2021: figure out how to not break facial expressions and eye movement while integrating HDT-SMP hair into version 1.3 the FaceGenData.

CREDITS:

RachelAmber1993 & TheShiningAbsol for reporting and resolving the original hair
color difference bug on previous Hood Plus Hair mods.
Also: https://www.creationkit.com/index.php?title=ColorForm

Thanks to Todd Howard and the Bethesda Crew,
Rxkx22 for Seranaholic-LE, bchick3 for the Seranaholic-SSE-port, Zhalroth for the HDT SMP patch,
big thanks to Ousnius and crew for Outfit Studio and KS Hairdos - HDT SMP (Physics),
NifTools team for http://niftools.sourceforge.net/wiki/NifSkope,
KS Hairdo team for "Cassy",
PsychoSlammer for pointing me in the right direction to fix the HDT SMP XML config file, &
Lord and Lady Immersion for every so often pulling me back into Skyrim mods.