I'm making a little freebie pack of fuzzy materials for P6, but I've run into this problem of holes in the fabric.  Here I've got the displacement set at 0.015 ... increasing that makes the holes bigger, a lower setting and the material looses the fuzzy effect that I want.  Is there any way to get around this?

Are these 100% procedural, or are you using a dsiplacement map?

If you are using a displacementmap, anything darker then mid color will displace IN, and if it goes in too far, you'll see poke-though or a hole.

**12/1/06

Gareee:

I believe that displacement maps can lower as well as raise the surface of an object. This displacement of the surface is controled by the shade of the map attached to the displacement channel. If the fabric of the clothing was lowered below the surface of the model/figure, then the skin if the model would show above the fabric of the cloth. Is that about right?

LMK**

Attached Link: maths node for positive & negative diplacement

However, 'cos I'm egotistic and hate to waste time, I'll post what I saved anyway...:-))

The above is a very simple set-up, seen in the pose room. Just a (green) cube and a one-sided square, offset very slightly from the cube.

12/2/06

Raven:

Thanks! That thread was very helpful. With Nodes and Channels Poser is so very versatile.

Diolma:

Post! Post! Some of the denser of us need all the illustration we can get!

LMK

To get back to the original question...
Neyjour, on looking as closely as I can at your pic, is the material intersecting the body around the neckline? 'Cos if so, that's the cause of the holes...

It looks like it is, no doubt as an attempt to add the illusion of "thickness" to the material.

The trouble is displacement only moves the surface geometry. it doesn't compensate for edges ..
I can't think of a quick'n'easy solution just now, but hope that what I've posted gives you some insight into the actual problem...

Cheers,
Diolma

Diolma, as far as I can tell, the material isn't intersecting at the neckline.  Going to try and attach a larger image.  crosses fingers  The holes are mainly over the left (our left) boob and arm.  With a dark skin texture, it doesn't show up too much, but is very noticeable with a lighter one.

Thanks again everyone!  I really do appreciate you trying to help, even though I couldn't get it.  :)

this is some great info from everyone. I appreciate it. Thanks diolma for posting those images. Neyjour, your fabric is awesome.
cheerio  lululee

Thanks lululee. 

I hope you don't mind me taking liberties with your pic...

I'd like to try to help, but 1st we need to narrow down exactly what the problem is, then it becomes easier to suggest solutions.
In my doctored pic, the area outlined in red is the area I think you're having problems with.
The area outlined in yellow is another possible area, but I don't think you're referring to that (that looks more like a lighting artefact).

What I think is happening is that the cloth near the neckline bends towards the figure, to give the illusion of thickness (the area highlighted in green is what makes me think this).

If what I have stated above is correct, then the effect you are seing is exactly what one would expect.
Displacement works right-angles from each face in the mesh (along the "normal"). You can see this happening where the cloth bends over the shoulder - there are low and high parts showing up, giving the "fuzzy" texture you want to get.
Unfortunately, the same effect is happening along the neckline (and for the same reason).
If all the above is true, then there is no quick'n'simple answer that I know of.

The most obvious answer would be to create a separate material zone along the neckline (as a hem) and apply bump to it, instead of displacement..

Are you working on your own mesh or on something created by someone else?
Is it dynamic or conforming cloth? (I suspect conforming).
Since you want to create a texture pack, I suspect that it's not your own mesh, so using the grouping tool to create a hem isn't a solution.
Do you have existing texture maps (IE .jpg images that can be applied to the clothing)?
If so, you could create a hem on the texture map (as a greyscale image) and use it to create a cross-over from the displacement to the bump.

The technique is not difficult to do, but difficult to describe in words. I'm not going to go into details here yet, since it presumes that all be assumptions above are correct...

Cheers,
Diolma

The yellow circle is what I was talking about!  The neckline is fine...and like you said, that's what it should look like with a fuzzy fabric.  Sorry for all the confusion...I should have tried to post a better pic.  :(

Anyway, yes, there are tons of little tiny holes all through the 'fabric'.  It looks like white bits of fluff in my pic, but it's actually the skin showing through.  It's like the displacement is causing the clothing mesh to tear apart in little bitty pieces?  Hope I'm explaining this right...I know nothing about any of this!  I also noticed that it only seems to do this with the darker coloured materials...the dark blue, the red, etc., and it's really bad with the black.  Of course, it might be happening with all of them but it's only noticeable with the darker ones.

I'm not using any kind of texture maps for these.  They're all done right in the material room.  And I'm using other people's clothes (conforming) to test them out.  I want whoever downloads them to be able to apply them to whatever they want.

Hmm....
That shouldn't happen.

May I suggest you try an experiment?

Clear the figure's textures in the relevant area (so there's no skin texture), then colour her a very bright red in diffuse only (set everything else to black/0).
Do the same again, except using bright yellow instead of red.
Do NOT change the lighting or anything else - I'm very curious about this 'cos as I said, it shouldn't happen.

Post the results. We'll take it from there:-)

(Afterthought - I'm not sure you should be worried about it anyway. OK, so it works slightly differently on different figure textures - but who's going to know? I didn't.. I thought it was a lighting effect..)
Errm.. What type of lighting set-up are you using anyway?

(Diolma is retiring for tonight - be back tomorrow)

Cheers,
Diolma

Attached Link: Matmatic fur

Here is bagginsbill's Fur script/thread.

Searching around here, and RDNA will turn up at least a dozen other scripts, if anyone wants the list that bagginsbill gave me, just IM!

Matamatic looks great. I'd love to have the list of the scripts Angelouscuitry.
cheerio  lululee

Matmatic Announcement and discussion:

http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=228105

Matmatic Download: http://loftydesigns.net/Beta/Beta/MatmaticBeta1.zip

Parmatic: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=226110

Deep Ocean Water: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=226110

Incidence SSS on Jessi: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=229578

Algroithmic Eye Makeup: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=229726

Reptile Scales: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=228528

Goldfish Scales: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=233907

Procedural Bruises: http://www.renderosity.com/mod/forumpro/showthread.php?message_id=2760455

 Polka Dots: http://www.renderosity.com/mod/forumpro/showthread.php?message_id=2774035

Monster skins: http://www.renderosity.com/mod/forumpro/showthread.php?message_id=2773712

Plaid: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=244503

Bricks: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=240354

Stars and nebulae: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=240500

Mixing nodes tutorial: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=237743

What render settings were you using? I've just had a play with this, and I get the same result when the settings are too low - noise used as displacement can cause problems 

Try increasing your pixel samples, and lowering the min shading rate - the problem seems to disappear with a min shading rate of under about 0.5 for me.

actually, I think the 'holes' make the sweater look more realistic. Most fuzzy sweaters have 'holes' where they are knitted together. cool material. have to go look it up now...