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GLBDAZ Quickie: dForce and the hidden things
187
Most of you will know that the fewer visible objects a scene contains, the faster the simulation is completed. But do you also know HOW MUCH FASTER simulations can run?
I tried out different settings and noted the times. I used one of my last scenes to experiment:
https://www.renderhub.com/gallery/69353/summer
Standard dForce Settings ON
"Start Bones From Memorized Pose" is the default setting for simulations. For most dForce actions, I personally think this is excessive, as it hardly makes sense for regular poses. But here you go ...
181 seconds when nothing is hidden
166 seconds when the environment is hidden
21 seconds when everything that is not needed is hidden: hair, bandeau top ... and with G9 models also the eyes, brows, eyelashes and mouth
Standard dForce Settings OFF
As mentioned above, in my opinion, the "Start Bones From Memorized Pose" option can be switched off for simple poses and the clothes will still drape well.
12 seconds when nothing is hidden
10 seconds when the environment is hidden
6 seconds when everything that is not needed is hidden: hair, bandeau top ... and with G9 models also the eyes, brows, eyelashes and mouth
Of course, the total time depends on your system and the clothing to be simulated. But the fact remains: the less visible fuss, the faster the simulation.
Happy simulating
I tried out different settings and noted the times. I used one of my last scenes to experiment:
https://www.renderhub.com/gallery/69353/summer
Standard dForce Settings ON
"Start Bones From Memorized Pose" is the default setting for simulations. For most dForce actions, I personally think this is excessive, as it hardly makes sense for regular poses. But here you go ...
181 seconds when nothing is hidden
166 seconds when the environment is hidden
21 seconds when everything that is not needed is hidden: hair, bandeau top ... and with G9 models also the eyes, brows, eyelashes and mouth
Standard dForce Settings OFF
As mentioned above, in my opinion, the "Start Bones From Memorized Pose" option can be switched off for simple poses and the clothes will still drape well.
12 seconds when nothing is hidden
10 seconds when the environment is hidden
6 seconds when everything that is not needed is hidden: hair, bandeau top ... and with G9 models also the eyes, brows, eyelashes and mouth
Of course, the total time depends on your system and the clothing to be simulated. But the fact remains: the less visible fuss, the faster the simulation.
Happy simulating
! REPORT
So true, special the hair, first thing I hide always!
So the scene and if there is another figure close I move it away, cause a tiny piece of the cloth that could touch a hand can cause an explosion.
So the scene and if there is another figure close I move it away, cause a tiny piece of the cloth that could touch a hand can cause an explosion.
REPLY
! REPORT
Pushee-Ri
Karma: 36,837
Thu, Jun 05Wow - 36 seconds online and already the first answer. I know why I call such info / tutorial " Quickie " 
The explosions can have different reasons - but mostly it is the wrong simulation parameters (or those specified by DAZ).
I have an overview of this. Have a look here:
https://www.renderhub.com/forum/5398/daz-control-of-the-simulation-behavior
The explosions can have different reasons - but mostly it is the wrong simulation parameters (or those specified by DAZ).
I have an overview of this. Have a look here:
https://www.renderhub.com/forum/5398/daz-control-of-the-simulation-behavior
Beautiful Misfits
Karma: 16,066
Thu, Jun 05Bookmarked 
Serious, the last explosion was caused by a hand, I moved the figure a bit away, cleaned the simulation, started new and all went fine
Serious, the last explosion was caused by a hand, I moved the figure a bit away, cleaned the simulation, started new and all went fine
Hair is generally a render bottleneck. Hiding it until final render will save lot of time. And depending on the complexity of the environment, hiding it for simulations makes sense. Even if the drape will make contact with the floor. I use a simple plane instead for the simulation and then hide it.
REPLY
! REPORT
Pushee-Ri
Karma: 36,837
Thu, Jun 05Thanks for the tip about the floor
What I personally find most amazing about G9 is how extra time can be taken out by hiding eyes, brows, mouth etc.
What I personally find most amazing about G9 is how extra time can be taken out by hiding eyes, brows, mouth etc.
Any idea how to get something that meant to be a quilt or duvet from deflating totally? I have a bed from DAZ which comes with what's probably meant to be a duvet that's a DForce object but it goes flat when using the settings it comes with. Makes a great blanket, but I dont think its meant to be one & it doesn't come with alternative DForce settings
REPLY
! REPORT
Pushee-Ri
Karma: 36,837
Sun, Jun 08Without knowing the product, it is difficult for me and others to say anything about it. Perhaps you can provide a link to the product? That is allowed in this case.
Basically, dForce (aka cloth simulation) behaves like a big, fat steam iron. This means that everything that can be flattened is flattened ... unless the producer has built a dForce Weight Map into the object. As an end user, however, you will not be able to access this.
Perhaps the producer has provided a documentary, tutorial or readme? If this cannot be called up directly from the product, you could search for it - either in the installation directory -> Documentation or -> Runtime -> Documentation.
As mentioned above - if you post a link to the product, I or others could take a closer look.
Basically, dForce (aka cloth simulation) behaves like a big, fat steam iron. This means that everything that can be flattened is flattened ... unless the producer has built a dForce Weight Map into the object. As an end user, however, you will not be able to access this.
Perhaps the producer has provided a documentary, tutorial or readme? If this cannot be called up directly from the product, you could search for it - either in the installation directory -> Documentation or -> Runtime -> Documentation.
As mentioned above - if you post a link to the product, I or others could take a closer look.
Andrew_C
Karma: 1,500
Mon, Jun 16Hi sorry about the late reply, Its the Ultimate Dforce Bed 2 https://www.daz3d.com/ultimate-dforce-bed-2 it doesnt come with any alternative DForce settings & has no documentation, not even a readme with licence details. Which is odd even by the standards of DAZ3D.
Ive seen renders with it that seem to get a thick duvet effect, but mine come out more like a blanket. Nice and wrinkly, though.
Ive seen renders with it that seem to get a thick duvet effect, but mine come out more like a blanket. Nice and wrinkly, though.
Pushee-Ri
Karma: 36,837
Mon, Jun 16OK - I took a quick look at the product. Everything seems to be right: the dForce blanket (I call it a dropper) drapes over objects as desired (see also the example from BM below). I think your problem is because you are trying to simulate it after using the morphs. Then the fat steam iron (see above) comes into play and flattens all the wrinkles etc. that you have created with the morphs.
This means that you can use the morphs shown on the " DUVET MORPHS " promo ... just don't drive a simulation afterwards!
You should be able to find the morphs in the " Parameters " pane with the object selected in the " Scene " pane.
Good luck
This means that you can use the morphs shown on the " DUVET MORPHS " promo ... just don't drive a simulation afterwards!
You should be able to find the morphs in the " Parameters " pane with the object selected in the " Scene " pane.
Good luck
Andrew_C
Karma: 1,500
Tue, Jun 17Thanks! So despite the objects name, best to treat it as a blanket like I have been.
I made a fast render and it worked as (I think) it's supposed to work.
and looking at the promo render, it's all like a blanket.
But it's late, I'm tired and need some sleep.
Will take a closer look tomorrow and hope, I can help you a bit more.
and looking at the promo render, it's all like a blanket.
But it's late, I'm tired and need some sleep.
Will take a closer look tomorrow and hope, I can help you a bit more.
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! REPORT
