Getting HDT vagina collision to work again with SAM

[yorishimo-san]

I am using "All-in-One UUNP HDT Animated Pussy 4.0" with SAM and the latest SexLab. Everything was working fine until recently. And tbh I have no idea what I did that made it stop working.

 

This has happened countless times before:

Back then the only way of fixing it was by starting a complete new character. Which is not really an elegant way of solving the problem.

Reinstalling the Animated Pussy mod does not! fix it.

Running FNIS (which is not even required for AIO Animated Pussy) does not fix it either.

The Animated Pussy mod is placed last in the mod load order in MO2. It worked just fine before with it being placed higher up though...so that is neither the cause nor the solution.

 

Now here are a few things that I have recently done ingame which might or might not be related to it:

- changed my character's weapon and genitals scaling via racemenu; however, I have done this many times before and it did not break anything back then.

- changed an NPCs body scales with the Body Scaling Randomizer mod; same as above, I do this frequently and it has never been an issue; also, all NPCs are affected by the collision issue, not just the ones I altered.

- changed my characters body scaling via the SAM mod menu; this might be the culprit, the strange this is that one time when I had the same problem changing my characters SAM scalings again and then loading/exit and restarting the game used to fix the problem. Not anymore though!

<- I cannot think of anything else I might have done that could have caused the HDT collision to stop working...

 

So...I am at a bit of a loss over this. The main problem being that I do not know/understand WHAT is causing it...; various fixes as described above sometimes work, but they are all of the "trial-and-error" nature, not informed/targeted fixes...

 

Does anyone have any idea what might have caused the collision to stop working, seeing as they worked just fine before ?

 

The one thing I know for certain is that this issue is CHARACTER SPECIFIC! Starting a new character always! fixes it.

[Mez558]

First, Please someone correct anything I say here that is wrong, this is my understanding of it and is pretty basic.

 

So the female body collisions are dictated by an xml file that is attached to the head. You can check this with nifscope or manually add it yourself but if you are using Leyande's AIO then it should already be done.

 

(I'm pretty sure that the branch should be NiStringExtraData and not NiStringsExtraData but it seems to work fine)

 

The xml for male genitals is attached to where you would expect it to be, the genitals. In SOS they under the SOS directory in data/meshes/character assets but for SAM I think they are actually in the character assets dir.

 

 

If those are in place then I don't know where else to look I am afraid. That's the first place I would check.

Also make sure you haven't installed something that would replace hdtPhysicsExtensionsDefaultBBP.xml

 

Also custom races, these would need to be added to any standalone custom races (by Standalone, I mean ones that use their own mesh and texture assets, not the games assets or assets from another mod.. I am certain this is what standalone always meant but apparently not any longer on the follower mods I've recently seen)

 

[yorishimo-san]

Thanks for the reply!

No custom races being used;

I just started a new game with a new character...and everything is working just fine! It is cleary hardwired to the character as even loading older saves from which I know that the collision worked do not! work anymore.

 

As for the " hdtPhysicsExtensionsDefaultBBP.xml" file, there is one in the AIO Vagina mod, the only folder overriding it is the Overwrite folder, but there is no such file in there. And as I have said, this issues is CHARACTER specific. Which is super weird.

 

Are there any files aside from save files that store HDT specific information about characters ?

 

As for NifSkope:

the collision meshes for SAM are part of AIO Vagina; NiStringExtraData shows the proper HDT Havok Path and the hdtm.xml file attached to.

 

So...?

 

Again, the most confusing thing about all this is the fact that it is character specific...

[yorishimo-san]

UPDATE:

 

I have created a new character and teste the collisions with it; everything is working for that! character!

When I now go and load up the save of my other character that I am having trouble with the collision works again, but! for some reason that screws up all the NPCs' facegen...

 

In other words, something is being carried over from one character/save to the other that is making the vag collision work again, no idea what though...

[yorishimo-san]

UPDATE 2:

 

Managed to fix it!

Still no idea what caused it to stop working but I found an easy and reliable solution thx to https://www.loverslab.com/profile/385614-scivirus/ !

 

Basically, create a clean new save game with a new character and load it whenever collisions stop working, then load up your previous save.