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#1 2018-01-22 09:25

Making MMD models with strippable clothing.

What advice or secrets you guys can give me on making proper strippable MMD models?

2018-01-22 14:39

Depends on what kind of stripping you want to do, which piece of clothing, how, etc.

However, Ademar's Izumi-chan can be a good reference for you. She is completely strippable, wonderful model tbh.

2018-01-22 17:30

Depends how much you know already about how MMD models work and how to use PMXE.

Do you know how bone hierarchies work and the different types of bones there are?
Do you know what weight painting is and how to change the weights a vertex has for certain bones?
How good are you at making vertex morphs in PMXE?
Is the article of clothing you're trying to make strip-able dependent on physics objects like a skirt or a loose shirt or more rigid like a pair of panties or shoes?

As an easy example, for panties, usually they are weighted entirely to the lower body bone, so what we can do is create a "panty" bone as a child bone of the lower body bone. Then, we can change the weight of the panty vertices from being for the lower body to being for this new panty bone. If we make the panty bone freely movable (square bones like the center and feet in normal models) the panties will be strip-able. In MMD you can OP register bones to the "ground" which is always static. That way they can stay on the ground.

To get fancier with the panties, you might want to add some morphs to the panties to stretch them out as they're being stripped. Use the scale tool in the editor to stretch it in a direction. You'll probably want a left/right morph and a separate front/back morph.

Alternatively (I think Izumi's model does this), if you're good at weight painting you could try to extend the panty bone idea further and make separate bones in different areas of the panties like front, back, bottom, sides that are all child bones of the panty bone and will give great control over the shape of the panties as they are stripped off.

2018-01-22 17:32

The panties I can do no problem with a little learning, but what I'm concerning is shirts and possibly dresses.

2018-01-22 22:27

Well, what kind of shirt? A blouse will probably take more work than a T-shirt, for example.

I don't know how much harder a dress would be from a skirt, but with skirts, there's usually a skirt bone already because of the way that physics objects work. All bodies are one of two types, bone and physics. Physics bodies are the ones that bounce around and account for gravity and other forces. Bone bodies are for stuff like arms, legs and torso and always follow the bone. Physics bodies need to be linked some way or another to a bone body or else they'll immediately fall to/through the floor. If we check we can find the first bone type body that the skirt links to. This is probably the body that links to the skirt bone. If we find this bone in the bones list and make it visible and movable, we can move the skirt wherever we like in the same way we did with the panties.

2018-01-23 11:38

What about a t-shirt? How can I make it a strippable piece?

2018-01-23 13:58

Maybe it would be easier if I knew what model you were trying to do this for.

2018-01-23 14:58

Let's say I want to make my SeeTrU model have a strippable shirt?

2018-01-23 16:33

Make a copy of your original model that has no physics bodies whatsoever. Remove the joints as well since they will crash MMD if they aren't deleted. Erase pretty much everything except the shirt and the relevant bones. Make the first torso bone movable. Maybe make others movable too while you're at it. Make morphs to stretch it around in different ways depending on how you want this shirt to be removed, probably one around each of the neck, underboob and waist. Back in your original model, make a transparency morph for your shirt if you haven't already.

Now, in MMD, load the shirt model in and make it transparent. You can also check the checkbox that says "display" in the model manipulation tab at the bottom. When you want to strip, make the original shirt transparent using your morph and copy the pose at the moment she starts stripping. Go to the shirt model and paste the pose into the shirt. The shirt model should now be replacing the shirt we erased. Now it's just a matter of animating the shirt stretching and moving as needed.

2018-04-30 14:32

Well I'm going to try and jump in on this one.. and In fact i got a few questions (and a model that might be used as a Tutorial if someone wants to show us how it's done.. (And yes this is something I created so I don't mind sharing!)

but let's get on to the first question.. and it's a good one..

"Make a copy of your original model that has no physics bodies whatsoever. Remove the joints as well since they will crash MMD if they aren't deleted. Erase pretty much everything except the shirt and the relevant bones. Make the first torso bone movable. Maybe make others movable too while you're at it. Make morphs to stretch it around in different ways depending on how you want this shirt to be removed, probably one around each of the neck, underboob and waist. Back in your original model, make a transparency morph for your shirt if you haven't already."

Now my first question is in regards to this is, how do you turn off physics ? is this in MMD (The Program) or is it in PMX (The PMX Editor)? And if it is the latter, how would you do this?

(Also if anyone wants to try this with the model I have just ask.. or mabye we can get something like it to work.

Just a thought

Tucsoncoyote

2018-05-02 04:24

So there is a way to turn off physics in MMD, and I'll get to it, but technically speaking, that's not what that paragraph you quoted was about. I said to completely erase all physics bodies from the copy of the model. In PMX Editor, go to the "Body" tab and highlight everything in the big box on the left and press the Delete key. Go to the "Joints" tab and do the same. You now have a piece of clothing that does not do anything with the physics engine. That's how you "turn off" physics of a model using PMXEditor.

Outside of the context of this topic, you can still turn off physics in MMD as well. If you want nothing in your animation to use physics, then you can just go in the top menu to "physical operation" -> "no calculation." This will make everything from boobs to skirts to hair completely stiff. If you only want one thing to not use physics, you need to first go into no calculation mode like before, or trace mode, which is right next to it in the menus. Your model will be a lot more cluttered with bones now but you need to then select the bone that you want to turn off physics for. Then in the bone manipulation tab you need to click "physics" until the button is not highlighted. Then click register, and that part of the model will not use physics.