How to stop Body Part Movements in Animations for Morphed Body Parts like Breasts still moving around the Chest ?

[Lione]

Now that i use MOCAP Animation Presets i notice a Issue with Breast Size Morphed Models.

As a example if you have a near flat breasted Woman i noticed that the Nipples and pre Source Breast Shape still move around as it would be the default Breast of the Source ATOM Person.
This looks really bad since it moves around in unmatching no longer matching Chest regions.

I checked for the ATOM Nipples L and R Atom Controls and tried Lock and Hold etc which makes it even worse.

Isn't there a possibility to fix the Breast in a position as it is morphed or lock it for example for a more flat breasted Woman?
In detail to lock the Chest animation or Breast / nipples animation in Body movement?

 

[DJ]

I'm not totally sure I understand the problem, but it sounds like the issue is with the breast physics settings. A small breasted woman with breast physics settings designed for a large breasted woman could look wrong. Check out the two "breast physics" tabs, and maybe the breast presets.

 

[Lione]

Ok i will have a look at this too. I mean if you reduce a breast from big to smaller size then once the body moves you shouldn't see the pre BIG Breast Under SKin parts to move around which still are the ones of the BIg Breast.
its so off looking ;D

Easiest to reproduce that technical :
If you use a Flat Chest Morph on a more or less bigger breasted Model and load that look then to a Mocap Animation like Dance.
Then you see what messy Breast / Chest behavior i mean
There is Body wise no Breast anymore now because its flat chested but the Under Breast Parts are still floating / Moving around like the Breast would still be there.

In Still i didnt realize that at all of course but now that i use Mocaps it is really something which must be fixed tech wise.
If you morph a breast then the new reduced size Morphed Meshes should be locked somehow ?
What you see here first place in size reduction is not how the actual Body will behave once you use them animated.
The Pre Breast mesh seems to be still there in its "bigger Source Size" and that is displayed on the Chest once the character is in movement.




Breast Physics wise.
Can that be set per Character ?
This sounds logic what you say. But is that what you always have to set for each character you create?
I so far did not reach that Settings at all or thought about them.
Interesting of course.

 

[DJ]

Wait, you reduced the breast size, but then the large breasts are visible when the model is animated?

I think you should post some screenshots.

 

[TToby]

Hi Lione,

There is a bug in VaM, where sometimes the breasts are completely distorted after using some breast physic settings/ custom breast presets (that makes the breast stiffer) then closing VaM and load them again. It seems like the nipples stays in the standard place which is way off if you will use a different body height. You can solve this by frantically clicking through the different breast physic presets and switch on/of soft body phsics, untill they will snap in place. Though, this is something that should be visible even without animations. Therefore I think you are talking about something else.

As you know, there is the feature "soft body physics". This will make the breasts and butt whiggle, but doesn't affect other body parts. As you have a flat breast morph in use, those whiggeling may look very strange. If you say it is "under the breasts" could mean, that the flat breast morph flattens the lower breast more than the upper part, but is still in the area that does those whiggeling while moving. Try to disable "soft body physics" on the females person menu main tab. Is it still moving? If yes, try to play around with the breast physic settings and maybe try to disable those "advanced physics", too, as this is affecting the breasts a lot.

Is it still moving strangely? Then it is maybe because of the animation is moving the bones or joints around, and your figure's shape is way different from the standard figure. But that is only a wild guess and normaly an animation should not move the nipples or breast bones. Does this happen to all figures with flat breasts or only this one? Is it only one certain animation? Do you maybe have used some settings on the breast joints that keeps those joints from moving correctly? Try to set them to default. It maybe is a completely different bug, but we eighter don't have found it now, or we just can't imagine what your issue really is. Maybe you can post an image?

 

[Lione]

Hi thx for your reply TToby and DJ

@DJ

I now know its the Breats "Mass" which still is added to the Models Presets once you morph the Breasts.
This is kinda wrong technical ?
Or perhaps its expected and one has to configure it regarding the changes which i didn't know so far.

@TToby

Soft Body Physics is activated as i see.

I just checked the Breast physics and indeed from my first trials the "Mass" Slider helps to stop that behavior.
The Soft Physics helps a bit but not as much as the "Mass" Slider.
This removes the behavior to near 100% once i set it to near Zero.
Technical Issue wise is use the fully FLAT Chest Setting because that showcases the behavior with still available Pre Breast "Mass" from scratch
and is sure easiest to reproduce the behavior.

I also tried the Reset to Defaults ( Explosion etc ) but it had no effect here.

Yes its on all models i reduce breast sizes which previously had bigger Breats.

I see i can vary the Settings for each Model
VAM is so awesome, i mean sure i have this and that what i do not like but it has so many Settings you can tweak.
And once i thought i now run into a global only setting issue i notice i can set them individual

If its a bug please tell me of course.
I dunno if the DEV(s) would even fix that now with 2.0 in planning.
But now that i know i can configure it per Model i have a workaround if its even one and not expected behavior.

So VAM Rule 76153761523761523
"People If you touch the Breasts sizes do not forget the Breast Physics correction in motion"

 

[DJ]

The morphs affect how the breasts look. The breast physics affects how the breasts move and bounce. These are independent, so no, changing the appearance with a morph isn't going to automatically adjust the breast physics.

I'd bet most creators never even adjust breast physics when they make a look. When things obviusly aren't working right, your best bet would be to go through the breast physics tab putting all the sliders to "default", and then go from there.