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Virtual World Dynamics F.A.Q (Last Updated: 2024 Nov 05 5:09 pm)




Subject: VWD Tutorials


VirtualWorldDynamics ( ) posted Sun, 28 May 2017 at 1:12 PM · edited Tue, 05 November 2024 at 1:18 PM

Hello, I just created a new tutorial showing a simulation made with Bow skirt for Genesis 2. Here is the link : https://www.youtube.com/watch?v=paU_eK2-spg&t=220s I want to continue to make other tutorials. This method is not perfect because my english is not a reference, but it is fast to do, to me. I wanted to make tutorials on 😀

  • VWD Interface
  • Vertices selection
  • Self-collision. A bit described in Bow skirt tutorial
  • Basic workflows (dress or hair)
  • Force field
  • Wind
  • Self-collision on a character and auto-correction for animations.

If you have other ideas, feel free to add some wishes.

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube


Smaker1 ( ) posted Tue, 30 May 2017 at 3:29 PM

Hello Gerald

thanks for this tutorial. I learn two things today 😃

  • the useful Animation history!
  • self collision by extension :that give amazing results for layered clothes !

I really like this tutorial as it shows the progress between simulations: what's the default and then what is the answer to correct it.

Great job!


itou31 ( ) posted Tue, 30 May 2017 at 3:49 PM

Merci Gérald, c'est très instructif. Still learning something new with your tutorials...


headwax. ( ) posted Thu, 01 June 2017 at 12:29 AM

thanks for that :)


VirtualWorldDynamics ( ) posted Mon, 05 June 2017 at 12:05 PM

I don't know if you have seen the tutorials showing three methods to simulate Hinata dress. Hinata dress is very interesting because it allows to show the advantages and the defaults of each method.

Do you think it would be helpful to redo old tutorials in French like a woman who sits on a chair by wearing a dress. Or other ones.

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube


Writers_Block ( ) posted Wed, 07 June 2017 at 5:09 PM

Great tutorials Gerald.


ebergerly ( ) posted Thu, 08 June 2017 at 2:25 PM

Bonjour Gerald. I do like your tutorials, but even though I've used cloth simulations in other software, I'm having difficulty understanding what the settings are in VWD. My basic understanding is that cloth simulations convert cloth into a simple web of masses and springs. And generally "softness" and "stiffness" are just how stiff the springs are. But the other settings, like stiffness by neighborhood, and many of the other settings, are very unclear to me.

It would be great if you had a tutorial that gives a simple graphical model of what each setting represents. I've seen most of your videos, and still I'm not quite sure what exactly the settings do or what effect they have.

Thanks !!


VirtualWorldDynamics ( ) posted Fri, 09 June 2017 at 11:22 AM

Hello ebergerly,

Yes, you are right, VWD has more settings as other Cloth simulators. The main difference between other simulators and VWD is that VWD can simulate conforming clothes. These clothes are made with a lot of separate parts which have no relations between them. A simple rigidification on the mesh structure of the cloth will not link these different parts together. The rigidification by neighborhood generates, for each vertex, springs with all the vertices placed in a sphere defined by a radius. This solution allows to link all the parts during the simulation.

You are right a video tutorial will be very useful to show this, but you can look precisely to the great documentation made by WimVDB. It explains well the difference between these two methods of rigidification.

My dream would be to be able to create presets which would work always perfectly, but the clothes found at Renderosity or Daz3D are so different in their meshes structure, number of parts, etc... that it is almost impossible to do so.

Personally, I use VWD to test some clothes but I am unable to know, by advance, what are the settings I will use for the simulation.

The only thing I can tell you, it is that a solution exists. It can be very simple but It can also be non-intuitive and it will ask many tests.

I just can tell you all the parameters are useful and I am sure other parameters will come later.

I hope I don't discourage you.

Have a great day.

 Gérald

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube


erik-nl ( ) posted Sat, 10 June 2017 at 3:46 AM

Thank you VERY much for those video tutorials Gérald! And for VWD itself of course : ) I still have a lot to learn, but boy, what an improvement over that aging OptiTex plugin this is.

Erik


ebergerly ( ) posted Sat, 10 June 2017 at 1:18 PM

Thanks Gerald.

Where would I find the documentation by WimVDB? I searched my harddrive and this forum but can't seem to find anything.


VirtualWorldDynamics ( ) posted Sat, 10 June 2017 at 2:26 PM

Hello ebergerly,

You can find the "vwdmanualRev11a.pdf" file in the same folder as the "VWDClothAndHair.exe" program. This documentation is more professional, with a better english as mine.

Tell me if you don't find it in the ZIP file you downloaded from Renderosity.

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube


ebergerly ( ) posted Sat, 10 June 2017 at 6:20 PM

Wow !! Excellent !!! I had no idea such a nice manual came with the software.

thanks


itou31 ( ) posted Tue, 20 June 2017 at 2:12 AM

Hi Gerald, I just go back to the software that I let apart for 3 months and get the new version. Thanks. Just a question on the "Utilities/Animation correction", what is it for ? As I mostly do animation (about 3000 frames), I use to record animation from DAZ to speed up the simulation. I also have weird experience with recording daz amination when daz is minimized (animation is not synchronized when sending back simulation) and sending animation takes about 2 hours long. Do you have this issue with Daz bridge ? or is it something wrong with my configuration ?


VirtualWorldDynamics ( ) posted Tue, 20 June 2017 at 3:51 PM

Hello Itou31,

I am like you, I love to do animations and simulations on animated characters.

Sometimes, the simulations takes 15 minutes or less and the transfer into Daz Studio takes one hour or more. You certainly will tell me the rendering will take still more time, and you are right, but I don't understand why the importation takes a so long time when we press the "Send animation to Host" button. In poser, it is almost immediate.

In fact, Philippe told me he choiced to use a fully compatible method to animate the cloth or the hair in Daz Studio. It would be possible to write a PC2 reader, for example, the transfer would be very fast, but the compatibility with Daz Studio would not have been perfect. I am sure Philippe has made the right choice but this don't explain why this transfer is so long. It is an internal problem in Daz Studio. Perhaps, it is possible to ask to the developpers to improve and accelerate this part of the program.

About the Animation correction, this function don't work correctly in the version you have. It works perfectly in the version I currently write. The goal of this function is to use the self-collision on a character to correct or apply a deformation from the character to the character, like for a cross-leg pose. In the current version, it is possible to use a self-collision on a character by using a self-collision by "Normals" and "By exterior". This new function expands this possibility to an animation. Tell me if it is not clear enough.

Gérald

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube


itou31 ( ) posted Fri, 23 June 2017 at 6:40 AM

Thanks Gérald, It's clear for me. I'm waiting for your next tutorial on this feature. And about animation, do you used to record animation or go on the fly ? And while recording animation, do you note more or less transfering time when Daz studio is on foreground or minimized ? Transfering back as morph always takes time with Daz studio. I don't know that there is a faster method.


VirtualWorldDynamics ( ) posted Sun, 25 June 2017 at 2:40 PM

Hello itou31,

Excuse me I was not at home during the weekend.

This method uses the recorded animation. You have to manage the settings for the self-collision, then you record the animation for the collision and you press on the new button.

In the new version, there will be a checkbox asking if you want to apply directly the modifications in the host. For now, this functionnality works only for Daz Studio or Carrara. I will send this version to WimVDB who told me it is perhaps possible to apply this functionnality in Poser.

 Gérald

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube


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