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SimTenero's Thread o' dForce Tips o' Controvertible Verisimilitude

simtenerosimtenero Posts: 383
edited October 2017 in The Commons

I may update this thread routinely, or there may be this one lonely tip at the top (the tippy-top, if you will) for all time.

 

Tip The First

Splodies and Collision Offsets

 

In the Surfaces pane, among the other dForce settings, you'll find something called Collision Offset.  This is the distance the simulation will try to maintain between the cloth and whatever its colliding against.  It's measured in centimeters.  If the clothing you are trying to drape starts off closer to the figure than that Collision Offset distance, the simulation will forcefully eject it at impossible speeds and explosive unhappiness will ensue.

image

This can be remedied one of two ways.  First, you can reduce the the collision offset (though going too small with this can result in small amounts of pokethrough if the cloth has big ol' polies).  Second, and usually your best bet, morph or scale the clothing so that it sits farther away from the figure to begin with.  If you're worried about this causing unwanted baginess, remember you can dial back the Expansion-Contraction surface setting to effectively shrink the cloth back down if needed (more on that later.. possibly wink).

image

The same goes for self collision.  If areas of the clothing start off intersecting or at tiny, sub-Collision Offset distances, things may wonkify.

Post edited by simtenero on

Comments

  • Aave NainenAave Nainen Posts: 1,108

    Lol, love the expressions to go with the sad/happy dForce experience!  Keep the tips coming please!

     

  • DaWaterRatDaWaterRat Posts: 2,885

    Indeed.  Following this thread for tips.

    Thank you.

  • josephlemons69_4db0991b45josephlemons69_4db0991b45 Posts: 423

    The first tip you should post is how do I use this

  • simtenerosimtenero Posts: 383
    josephlemons69_4db0991b45 said:

    The first tip you should post is how do I use this

    laugh

  • JackFosterJackFoster Posts: 143

    Any tips on how to get dForce to work with figures which have geografts applied?

  • simtenerosimtenero Posts: 383
    JackFoster said:

    Any tips on how to get dForce to work with figures which have geografts applied?

    Is it the cloth getting draped that has the geograft, or the figure?

  • JackFosterJackFoster Posts: 143

    The figure. Even if I have clothing fit to a different figure without a geograft, if the cloth is colliding against a figure which does have one, it won't follow the pose of the figure it's fit to.

  • simtenerosimtenero Posts: 383

    Hmmmm, that's weird!  I just did a test with G8M Nethers geografted on, then draped a baggy t-shirt.  It worked great.  Any chance you can screenshot or share more detail?

  • JackFosterJackFoster Posts: 143
    edited October 2017

    Here's one. Base G8M, attempting to simulate the basic t-shirt. Geograft was hidden and shorts were added after simulation. I'm using the Start Bones from Memorized Pose setting, so the figure is moving during the simulation. If the figure doesn't move, it works, but that's very limiting.

    Edit: Added screen shot of the same exact simulation with the geograft deleted before the simulation was ran.

    dforcegeo.jpg
    1224 x 796 - 194K
    dforcegeo2.jpg
    1224 x 796 - 205K
    Post edited by JackFoster on
  • simtenerosimtenero Posts: 383
    JackFoster said:

    Here's one. Base G8M, attempting to simulate the basic t-shirt. Geograft was hidden and shorts were added after simulation. I'm using the Start Bones from Memorized Pose setting, so the figure is moving during the simulation. If the figure doesn't move, it works, but that's very limiting.

    Ok, I just recreated the issue, definitely a bug!  Good catch!!!  I can report the bug, I'm glad you spotted it :-)

  • AllenArtAllenArt Posts: 7,175

    Thank you for this :)

    Laurie

  • LlynaraLlynara Posts: 4,772

    Great tips! I will try that on the Santa pants that I made explode earlier. LOL

  • beachlegsbeachlegs Posts: 524

    Will keep an eye on this thread thank you :)

  • JackFosterJackFoster Posts: 143
    edited October 2017
    simtenero said:
    JackFoster said:

    Here's one. Base G8M, attempting to simulate the basic t-shirt. Geograft was hidden and shorts were added after simulation. I'm using the Start Bones from Memorized Pose setting, so the figure is moving during the simulation. If the figure doesn't move, it works, but that's very limiting.

    Ok, I just recreated the issue, definitely a bug!  Good catch!!!  I can report the bug, I'm glad you spotted it :-)

    Thanks to jdavison67, there is now a workaround for this issue. If you want to use dForce on a figure with a geograft attached, just start the simulation while the Node Weight Brush Tool or the Geometry Editor Tool is selected.

    Post edited by JackFoster on
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