Dynamic sheet set
kaotkbliss
Posts: 2,914
So I just purchased this
http://www.daz3d.com/dynamic-sheets
for use in some scenes but I find I'm having some problems.
First, I couldn't figure out how to get the sheets to drape but after some digging I found it.
Now I'm having a problem with the sheets falling through everything. First I tried 2 genesis2 figures on the motel bed sleeping, but the sheet fell completely through one person and halfway through the other.
The other scene I tried was a genesis2 figure on the gurney from the west point series but the sheet fell through part of him and pretty much all of the gurney :(
How can I fix this? I tried selecting collision with everything as well as just the pieces the sheet was going to cover but that didn't make a difference. I also tried the "cancel" trick but that didn't work either. (this is where you keep canceling and re-draping, I guess it's supposed to help with collision detection or something)
I read that it may have to do with the models not having a high enough density, but I've not found where that could be changed.
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Comments
Be sure that you have them set to collide on the top level and check to make sure that what ever else in the scene has enough poly's to "catch" the sheets. If it doesn't you can fake it with some primitives that are higher poly count that cover the prop parts that the sheet will intersect with. You can hide them (close the eye) once you have them in place. Sometimes all you need is a primitive plane placed on top of the surface of the flat surface.
Sounds like an easy solution for flat surfaces, but what about a person?
I've been experimenting a little bit but you would think that a company that's got the corner on the market for Dynamic clothing for Daz would have better collision detection. Pretty sad really.
Anyways, what I started doing was layering sheets upon sheets. (I think for the simple scene of a person being pushed on a gurney down a hallway took 6 sheet props)
Each new layer of sheets had either less pokethrough or pokethrough that was in a slightly different position as the sheets collided with each other (draping 1 sheet at a time).
I created a plane the size of the gurney and with 500 subdivisions and the sheet still fell through the edges, but not as much as just having the gurney by itself so I had to scale the plane a little larger than the gurney.
What a P.I.T.A.
I would think that at least a human model would have enough poly's for the sheet's collision detection.
There's got to be an easier way as the sleeping person scene is going to take hundreds of sheets the way 1 falls completely through 1 of the people.
I have never had any issues with DAZ figure and Dynamics so it begs the question what is really happening. As for the other props yes many need to be Sub-Ded (subdivided) to add more polygons but depending on how the props were made that is not always easy and the prop can explode leaving a right messy mesh.
I don't think I was clear enough. That means that be sure that the sheet is set to collide with the figure by selecting the top level of the figure and un-checking the parts that don't need to collide rather than un-checking all of it and setting it to collide with the parts that it will be in contact with. There can still be issues with things like finger tips by the way. a good solution for that tends to be a pair of gloves that you hide on render.
I don't think I was clear enough. That means that be sure that the sheet is set to collide with the figure by selecting the top level of the figure and un-checking the parts that don't need to collide rather than un-checking all of it and setting it to collide with the parts that it will be in contact with. There can still be issues with things like finger tips by the way. a good solution for that tends to be a pair of gloves that you hide on render.
I first tried with having everything in the scene checked, but when that didn't work I figured that maybe there was just too much it was checking for, so I unchecked everything, then checked the top level of just the objects that it would collide with when it draped. Same result both times. I've also got hidden clothes on the objects but that didn't work either.
No clue what's going on :(
That is odd.. I checked to make sure it was working for me. I'm really not sure why it is not working for you. Sorry about that.
just one thing
have you already run a few sims?
I find dynamic cloth will stop working after a while falling straight through everything and you must close DS re-open and load a new instance of the item, you can save the rest of your scene as is.
it fills up the VRAM or something geeky.
If you have more than one sheet or more than one figure in the scene, are you sure you have the correct object selected before you go into the collide settings? This is a very easy mistake to make (I've certainly done it often enough...).
One gotcha when it comes to dynamics — you can't select them in the Viewport, you can only select them in the Scene tab. And if the object is a figure (made up of smaller body parts) rather than a plain object (no smaller parts), you must have the root body part selected, otherwise many of the dynamics functions won't work.
Ahh, but you can select them in viewport ;) in the scene tab, you have the eyeball, the mouse pointer with a check or x next to it, then an object symbol, followed by the name.
If you look, the dynamic cloth (I assume for all dynamics) has the mouse pointer with an x (meaning it's not selectable) but if you click that mouse pointer, the x changes to a check, allowing you to select the object in the view (I use this to turn off selecting walls, floors, ceilings, etc. when trying to move around my scene and those large items get in the way and highlight completely blocking my view)
She may have been talking about in the dynamic tab. When you are draping you sometimes swap between different ones and need to pay attention to just which one your draping and what it is colliding with. Especially since it is better to go off and deselect as much as possible to speed things up. For example if I am draping a dress don't need it to collide with the head or eyes and often I don't need feet or hands turned on either.
Ahh, ok. Yeah I've been very careful about that since I'm trying to get it to work. I did find (through your suggestion) that the Urban Warrior outfit does a pretty good job creating collision so Now I think I just need to experiment with poke-away and the Urban warrior outfit to see if I can get the sheet to fall where I want.
I had tried a few other outfits but all had the same effect of the fall-through/pokethrough so I figured a full body outfit might have more pollys, especially if there was a lot of detail in it.
So I got the figure on the gurney to work mostly. Still had a tiny bit of pokethrough but I was able to position the camera enough you couldn't see it.
The bed scene however, has really got me steamed as it seems no matter what I do the sheet just doesn't want to listen.
I've tried selecting everything in the room, just the parts it would collide with, adding multiple layers of clothes, adding planes, I've tried increasing the model's sub division level in the parameters, I've tried going into the geometry editor and grouping every part of the model into 1 whole group, I've tried the sheet at different heights
But it's always the same, it falls completely through 1 of the 2 models and halfway through the other.
Do you have the advanced plug in for dynamics or just the basic one that is included as part of studio? If you have the advanced one (the pay for one) be sure that the version number is correct for your version of studio. Other than that I am at a loss as to why it is not working properly for you. I did a test drape on g2f and other than some minor poke through (I'd run a couple of iterations with internal pressure to clear that if it were more than a test render) I didn't have any issues. The division on the primitive was 50 and I didn't futz with anything else. I turned off collision on her mouth, eyes and hands to speed up the drape.
Unfortunately only have the basic.
What do you mean by "internal pressure"?
The advanced plug in has internal pressure as a preference. A couple of itterations with some internal pressure can "puff" it enough to cover the intersection without getting carried away and making it balloon out.
BTW.. I had both self intersection and face body intersection unchecked during my drape
So it seems getting the advanced options will make dealing with sheets easier.
I did make some headway after my first post today though.
It seems the less you select for collision the better, so 1 king size sheet covering 2 people was too much.
I used 2 sheets set to twin (1 for each person) and I think I'm getting somewhere. Next I'll try to remove collision for all parts of the body covered by clothing that's already being checked for collision.
I've always found the advanced stuff very handy. I also started thinking about the cloth settings and you may want a less fluttery "fabric". Martin has some cloth settings (denim might be good for heavy sheets for example) on this page http://www.optitex-dynamiccloth.com/FreebieDownload04.php
Holy-moly! thanks for the link :)
I did finally manage to get it to work using my above method. For example, if the person was wearing pants and boots, I would have the sheet collide with the pants and boots, but not the persons hip, legs or feet.
obviously I wanted 1 sheet to cover both so after doing the 2 separate sheets, I did a 3rd at the king-size and had it collide only with the other 2 sheets and the bed.
I couldn't hide the other 2 sheets though since the 3rd did fall through a bit, but the pattern I used on all 3 blended together pretty well and it looks like a single sheet over the whole bed.
Pretty frustrating getting to this point but now that I know, it will hopefully be easier in the future.
I'm glad you got it sorted..sort of. I wish that it were working properly for you though. I know how frustrating crazy drapes can be.
Not working at all for me. I've got two characters seated on a bed - regardless of what I do, the sheet falls through their toes... and feet... and shins... and pretty much everything else.
The key is to have the sheet collide with as little in the room as possible and I found the sheet collides better with clothing than it does with parts of the body. If I still get complete fallthrough, then usually resetting the sheet, saving the scene, then closing and reopening Daz helps. Although I've not had a chance to mess with the sheets yet in the new 4.7 so I may have to adjust my method.
Thanks for the tip. Yes, now and again it catches on the legs of the pajamas pants that one of the characters is wearing. I might try and put on some tights and socks on them... but then I also get some weird bubbling on the bed surface...
I was hoping draping dynamic clothing won't take several hours of work just once in a while!!