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Problems on making a shrinking woman scene using dForce

Aperture1101Aperture1101 Posts: 1
in The Commons

So recently, I am trying to use the daz to make some shrinking woman images, similar to Bare-Faced-Cheek on the DA, and I study the RGcindy's guide on how to make loose clothes. But I am still not confident on the process of making it, should I start simulation using a bigger figure scale like RGcindy to create loose clothes effect, or just simply shrink the figure down as the simulation goes? Please give me some tips since I am a noob on dForce.

(Image 1 is using the RGcindy's method, I start from 164%, and change it to 100% at frame 30, the rest are just for simulation)

Image 1

(Image 2 is using my way, starting from 100%, change to 36% at frame 30)

Image 2

Image 1.png
2559 x 1368 - 1M
Image 2.png
2559 x 1368 - 1M

Comments

  • felisfelis Posts: 4,344

    As I see it either method should work.

    Personally I thnik I would go for shrinking the woman, so the sizes corresponds to other objects in the scene.

    But what is the effect you are trying to achieve, since you are not satisfied with your result?

    You might consider having more steps in the simulation, e.g. a pose at frame 20 and start shrinking from there towards another pose. By using more steps it might be easier to get the result you are after.

  • Aperture1101Aperture1101 Posts: 1

    I want to achieve the effect that the dress spreads out around the figure instead just piling up on the floor, and I do not think I have achieved this.

  • felisfelis Posts: 4,344

    If that really happened, I can't think of why the dress should spread out instead of piling up. There is no forces making the dress to spread. You have to remember dForce is trying to emulate what would happen if normal gravity affected it.

    You could consider using some helper objects to drag the dress out. I would use downscaled spheres. Places the helper objects so they cover a part of the edge of the dress, and then drag them outwards along the timeline. It might look a little odd as the drag will be on the areas where you have the spheres.

    Another option would be to place a cone that the dress can slide on, and then lower it along the timeline.

  • LinwellyLinwelly Posts: 5,947

    Aperture1101 said:

    I want to achieve the effect that the dress spreads out around the figure instead just piling up on the floor, and I do not think I have achieved this.

    I'm not knowledgeable of animation but when you said the dress should spread instead of bulk up I though maybe you could try a wind node from below, not too forcefull so that d-force effectively takes it down?

  • Richard HaseltineRichard Haseltine Posts: 101,010

    You could have a plane under the figure, and scale that up centred on the woman, so it will drag the edges of the skirt get pulled out uniformly - set Visible In Render off so you can see it while working but not in the final render.

  • crosswindcrosswind Posts: 6,999
    edited October 2023

    OP see if you wanna have the draping results like the attached SS... In most of the similar cases, giving the clothing a good pre-simulation shape could be a trick.

    For this gown with such a fabric, it's not natural to make it much stretching other than making it better drape, otherwise that'll be a sort of anti-physics... And with tweaking properties on dynamic surface(s), you can make the draping quite a few subtle change.

    SNAG-2023-10-2-0069.png
    2560 x 1400 - 1M
    SNAG-2023-10-2-0070.png
    2560 x 1400 - 1M
    Post edited by crosswind on
  • FirstBastionFirstBastion Posts: 7,762
    edited October 2023

    Youshould try to run the simulation with just the dress by itself,  to see what the weight control nodes do to the draping. They sometimes restrict the dress from falling to the floor. 

    Post edited by FirstBastion on
  • RGcincyRGcincy Posts: 2,834

    There's a few helper objects that could potentially move the bottom of the dress so it spreads during simulation:

    One is to use a torus on the floor sized so the dress covers it at frame 0. Scale the torus in the X and Z direction over time. If it works it would do so by pressing out the bottom hem, but the cloth may ride up and over it. If the hem of the gown you are using is fairly circular, you would do better if you can embed the hem within the torus at frame 0, then when the torus scales it will have trapped the gown and move it with less likelihood of the cloth riding up and over.

    Another option is to try a cone that is sized within the dress at frame 0. Over time, widen it in the X and Z directions and shorten it in the Y direction until it is flat. Compared to the torus, this should help push out not only the hem but much of the dress above the hem.

     

  • ArgleSWArgleSW Posts: 145

    Try scaling down the character and load the clothing in its original size without parenting it to anything (Dont have the character selected when you load the dress). Move the clothing manually so there is no clipping with the body before running the sim and just keyframe it as the character scales down. 

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