I absolutely LOVE VWD. But I have a few basic questions...

1. It seems that a simulation requires ONE collision object and ONE cloth object, is that true? And the collision object has to be a rigged character? I'm wondering if that is true, and if not, how can I use multiple collision objects (like a rigged character and associate props).

2. Does VWD have a preference regarding the mesh composition of the collision and cloth objects? Does it prefer square faces or triangles? Does it work best with a certain number of vertices? I ask because sometimes the mesh gets very messy during the simulation and I'm not sure why.

3. I thought rigged objects like clothing are actually comprised of multiple objects, so doing a cloth sim would cause the parts of the mesh to fall apart. How does VWD handle that? Because sometimes I noticed that the mesh DOES fall apart during a simulation.

By the way, thanks much for the recent tutorials. Especially the one explaining what the History does, and how you can re-run the previous sim just by modifying the history without shutting down VWD completely and starting from scratch. EXCELLENT !!!

Not a specialist but I can try some answers: 1: no: you can have as many collision objects as you want and they don't need to be rigged object (like furnitures: chairs, ...). Yes: you can have only one clothe object by simulation but you can use the result of the first simulation as collision object for the next simulation 2: I pass! but you can show some samples 3: Rigidify "use vertices neighborhood" avoid the mesh to fall aparts, if you only use "by vertices extension" you may have problems

Thanks ! So how do you get multiple collision objects for a single simulation? Multiple times I've tried selecting the first scene object, convert that to collision, then selecting the second object, and when I click the Collision button VWD freezes, and after a few minutes says the second "object not found", then freezes some more. And if I just keep clicking to start a sim (even though not all the buttons are visible), the sim only has the first collision object and the cloth object. But the second collision object is missing.

I did some tests, and clearly there are some issues with two OBJ's, one as collision and one as cloth. The simulation just locks up with the hourglass. Same thing happens when both objects are the internal DAZ primitives, or an external OBJ from Blender.

Every time I had to kill DAZ from the Task Manager.

Never had problem. Could you explain what you are doing with primitives and I'll try on my side. What are the versions of VWD and the Bridge to compare?

Thanks. Im using latest Windows 10, latest non-beta Studio 4.9.3.166, and latest VWD and bridge since I just downloaded them last week for the first time.

To reproduce just add a DS primitive sphere with 20 or so divisions into empty scene, then add a plane with 20 divisions, start VWD, convert sphere to collision, convert plane to cloth, turn off subdivide, and run the sim. On mine it locks with hourglass

Default VWD parameters? I'll try this evening! (european hour!)

Wow, I just tried it again this morning and it seems to work okay. Maybe I have a default setting that's causing a problem.

And I even tried two rigged collision objects with one OBJ cloth object and even that works today...strange...

I must have made a dumb setting somewhere. Though I think the first times I tried I set up two collision objects first, then the cloth. And this time I set up a collision, a cloth, and then the second collsion. Maybe that was the problem...

Perfect ! even a good sleeping night is good for VWD

I often apply the "reset default parameter" because it's sometimes better to start from a blank page.

@ebergerly : excuse me I didn't see your thread. Normaly, you can import the collision and dynamic object in the order you want. I will make some tests.

Thanks to Stef for this help assistance.