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COOL BEANS> looking forward to seeing this implemented! :-)
now that i'm back from the aiko-shoe-making detour
i'll resume work on the shrinkWrapper script or plugin
here you see in blue the profile of ... something wrapped onto something
and in magenta, the convex hull that is supposed to give us a tent / spandex effect
--- the second image clarifies the situation
the line in green would be like a cloth stretched on top of the something
and the line in magenta would be a hammoc on which the something lays
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and you know what all this reminds me of ? .... this ... http://www.youtube.com/watch?v=AOiuh2Upa8s
---
Turns out what i want has a name, it's called Andrew's Monotone Chain Algorithm
http://en.wikibooks.org/wiki/Algorithm_Implementation/Geometry/Convex_hull/Monotone_chain
My head hurts from the technical stuff! lol Still watching and hoping you can get all this working even better than before. :coolgrin:
some progress! i caught the moon in a net
not there yet but that's progress, the curve shows how the "spandex" part of the script would treat a cloth shrink-wraped onto a ball+floor
Very nice but do you think there is a way to even out the curvatures where the verts on the ground are more gradual up to the verts where they are more populated on the moon ball??
Looking at your dialog your working in what would happen if you spaced out the dots more evenly from the ground to where that first dot is up on the curve on either side??
i had an experimental version where, as a last step, i reconstructed the curves/loops by first measuring the loop. then spreading the vertices at constant distances, i could add that as an option.
but this wont affect the shape of the curves which are like rubber-bands under tension
it's not a simulation of an elastic knitted cloth, in fact for now its just rows or columns of rubber-bands along one axis
when i'll combine 2 axis it should give interesting results
one thing i may also do is a tapering effect based on something like the D-Form's weights
in the distant dream future i'd like to add semi-random wrinkle/folds in the areas that are not in contact with the wrappee
oh but actually in the script, ( my laboratory version, that is ) presently, there IS a system that "re-populates" the curve, it's just that in the previous plot they were not computed , but in a forum post before that one you could see how the curves had the same number of vertices at the end of the process
so it would look more like this
Ooo, now were talking! That's lovely!
Fig 1 - a momentous event, the first time the script came up with an acceptable rubberband effect for ribbon/plane wrappers
Fig 2 - corrected interpolation issue
Fig3 - complex case
Fig 4 - improved
Fig 3 - stuff to look into
This is just awesome! WOW!
had some fence issues to solve ( is a flat line concave or convex? asked the computer )
next time i should have the first example of lets call it a spandexish mesh
WHOA, that's looking perfectumundo! Getting the shrink wrap to work over many areas of the body will greatly benefit from the new improvements.
Still here too. Haven't got a clue how you do all that, but it looks like it'll be fun to play with ... web wires, forcefields, ...
i think my characters are getting tired of the spiderman tests but they wont mind having new clothes done with it
i think my characters are getting tired of the spiderman tests but they wont mind having new clothes done with it
Okay :-)
That last one with the kick is just unbelievable. WOW!
another lab test which was a good idea since it let me discover a tiny rarely ocuring bug in the phase where the script discovers the architecture of the wrapping cloth
( it holds in place using nanotechnology )
I like the third image with the red as the verts look more nicely spread out under the breast area! Perhaps there is a way to include a spreading smoothing option to make sure tighter areas won't get bunched up??
Considering the hours I just spent trying to get a uvmap in Hexie for that area "presentable" ... WANT!!!!!
to get this result, i made a first shrink pass, then i decimated and subdivided the bustier/shield
then i re-shrunk it
maybe there will be "rebuilding " of the curves to spread out the vertices ... maybe soon maybe later :)
didn't advance the script but i made a little demo video !
http://www.youtube.com/watch?v=mpC8fFnq8vg
? would there be a better result for the box if it was tessellated a lot ... like the sphere was?
Yea, exceptional examples but the box was a little weird.
? would there be a better result for the box if it was tessellated a lot ... like the sphere was?
the wrapper is projected onto the wrapped objects at a perpendicular angle from the wrapper plane (normals )
some collider rays hit the box others hit the floor, then the script pulls them back a little - to reduce poke-trough
but in this case the poke-through is as tall as the box so it doesn't work, then the spandex effect is (optionally ) applied
and this too isn't enough to solve the poke through
to really really solve poke-trough, the script would check each one of the 4096 edges of the wrapper plane and move them so that they
don't pierce the cube .... but i'd leave that for later
for now the air-gap is enough to fix poke-trough enough to help make clothes for figures
by pre-shrinking the wrapper plane and using a larger air-gap we get rid of the poke-trough
note here that the spandex / rubber-band effect is still only along 1 axis but should be available along 2 axis
Very nice. Perfect even!
You know, it occurred to me that perhaps you might actually develop a dynamics engine for DAZ Studio that can take simple obj's and drape them and then work up to more complex or outfits that were previously made. One of the factors that is gravely missing from DAZ Studio is a way use common and complex shapes to drape at the end users convenience rather than relying on that other system (which to me is too limiting).
an important step for the script ( though i was holding it by the hand )
the sort-of-spandex effect along 2axis
the the script does
- push the cloth against the cube, as if it was a wet t-shirt
- stretch the cloth fibers along the X axis
- stretch the cloth fibers along the Z axis
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Figure 2
maybe the essence of this script is cup / hat / tent making
a first garment-ish result with the 2 axis sort-of-spandex effect!
Oh that's going to be popular!