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DFORCE Problems

Bryan ValenciaBryan Valencia Posts: 55
edited February 2020 in Daz Studio Discussion

Got this setup, sweater on an hanger.

Sweater - whether parented to the hanger or not, exhibits HORRIBLE amounts of poke through.

Go to the Surfaces Tab (as I see in MANY dforce videos) and look for the dforce surface properties.

NOTHING THERE.

Procedure I used (as in this video )

  1. Import stuff
  2. Edit-Object-Geometry-Add Dynamic surface
  3. Look for bend-stiffness etc in Surfaces Tab.
  4. Extreme Dissappointment.

Just once I'd like this program to work as described.

 

 

 

sweater1.jpg
768 x 507 - 54K
sweater2.jpg
417 x 431 - 40K
sweater3.jpg
528 x 2500 - 135K
Post edited by Chohole on

Comments

  • barbultbarbult Posts: 24,243
    dForce needs fairly dense base geometry in order to calculate collisions adequately. Either your hanger, or your sweater, or both probably don't have enough well positioned polygons to calculate collision. Look at them in wire frame view. If the vertices are far apart, that is probably the issue. You can try changing the Simulation Settings to use Best and Viewport for collision calculation and see if that helps. You can create primitive cylinders the size of the hanger parts with lots of divisions. Then position those cylinders where the hanger parts are. Creating them with lots of divisions will give dForce more vertices to collide with. After simulation, you can hide or delete the cylinders.
  • ZilvergrafixZilvergrafix Posts: 1,385

    use Cinema4D or Marvelous Designer for that if Dforce had dissapointed already

    Dforce is not a realistic cloth simulator but an aproximate and nothing else, believe I've had problem in dforce when my busty models taking place...due to forum politics I can't put examples...

  • cm152335cm152335 Posts: 421

    most of colisiion default can be fixed in "surfaces" tab
    you can set collision parameters! 

    another tips is to X-Z resize your objet before sumulate Dforce and restore after simulation
    also it need to disable "smoth modifier" and apply back after simulation

    i remember in a bed frame, i added "cylinder" primitive for some part where the sheet always passes some part

    cylinder was almost invisible with "0.00001" cutout opacity

  • cm152335cm152335 Posts: 421
    Zilvergrafix said:

    use Cinema4D or Marvelous Designer for that if Dforce had dissapointed already

    Dforce is not a realistic cloth simulator but an aproximate and nothing else, believe I've had problem in dforce when my busty models taking place...due to forum politics I can't put examples...

    Dforces is good for 'draping' objects where only one layer it used
    many clothes have more that one layer and they generate problem with self collision

     

  • Richard HaseltineRichard Haseltine Posts: 100,842
    cm152335 said:
    Zilvergrafix said:

    use Cinema4D or Marvelous Designer for that if Dforce had dissapointed already

    Dforce is not a realistic cloth simulator but an aproximate and nothing else, believe I've had problem in dforce when my busty models taking place...due to forum politics I can't put examples...

    Dforces is good for 'draping' objects where only one layer it used
    many clothes have more that one layer and they generate problem with self collision

    Using the Collision Layer setting in the Surfaces pane can help with overlapping objects (a single obect can have only one layer value).

  • cm152335cm152335 Posts: 421

    another thnig with dforce "hair" or most of clothes

    after a good one simulation, I changed pose and do another more simulation, 
    that procedure fail !

    don't know the reason but even i'm using the "reset" the hair or reset the simulation, it keep always some previous part in memory
    never the result is corrcet

    the solutuon for a second changed pose simulation  is to remove and re apply the hair (or clothes)
    99% succefull  

  • Bryan ValenciaBryan Valencia Posts: 55
    edited February 2020

    I think I got part of the problem - the sweater was just intersecting the hanger a tiny bit.  I lifted it up and re-simulated, and...

    I have subdivided the mesh, and will try the drape again, hey does dforce hate quads and like triangles?  This mesh is all quads.

    Sweaters.png
    1000 x 1000 - 1M
    Post edited by Bryan Valencia on
  • Bryan ValenciaBryan Valencia Posts: 55

    I think I got part of the problem - the sweater was jusr intersecting the hanger a tiny bit.  I lifted it up and re-simulated, and...

    I have subdivided the mesh, and will try the drape again, hey does dforce hate quads and like triangles?  This mesh is all quads.

    some yahoo said:

    Got this setup, sweater on an hanger.

    Sweater - whether parented to the hanger or not, exhibits HORRIBLE amounts of poke through.

    Go to the Surfaces Tab (as I see in MANY dforce videos) and look for the dforce surface properties.

    NOTHING THERE.

    Procedure I used (as in this video )

    1. Import stuff
    2. Edit-Object-Geometry-Add Dynamic surface
    3. Look for bend-stiffness etc in Surfaces Tab.
    4. Extreme Dissappointment.

    Just once I'd like this program to work as described.

     

     

     

    I found out something else about this:  I created the sweaters in Wings3D.  Wings hates "holes" It turns out that when you export them as DAE (Collada) it effs up the geometry, but as .obj (Wavefront), it seems to do better.

  • CyberdeneCyberdene Posts: 72

    I wish they could improve deforce, I tried marvelous designer but I cant afford that and it also doesn't work with everything either.

    If clothing can't drape or fall on a surface, then why dont vendors just make morphs for all clothing that have a drape or laying on floor morph dial?

    I dont understand why none of them won't do this so we don't even need deforce anymore. It's the same thing with how some sofas I own have morphs where if a character is

    sitting the cushion has squish morphs. Yet you have vendors still making sofas that dont even come with the most important feature. A sitting effect.

    It seems like no matter how many clothing items I try to deforce none of them wont work..

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