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Hi,
This is the result of my first Clothray experiment. Unfortunately, I haven't
yet managed to work out the effect that each variable has on the cloth's
behaviour, so this is more the result of trial and error than planned
outcome. I hope you like it anyway.
--
Andy Cocker
---------------------------------------------------------------
listen to my music at:
www.mp3.com/lunarland
---------------------------------------------------------------
'I spilled spot remover on my dog. He's gone now. '
'I went to a restaurant that serves "breakfast at any time."
So I ordered french toast during the Renaissance. '
- Steven Wright.
---------------------------------------------------------------
Post a reply to this message
Attachments:
Download 'Cloth_A.mpg' (620 KB)
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As always with these cloth things it makes for a nice animation, however it
also has the usual over-stretched appearance which I've seen of others in
the past. Can see it best at the apex where the squares become much larger
than adjacent ones. Since cloth seldom stretches much even under tension it
makes it look more like a thin membrane, or act as a loose netting were it
only strings along the checker lines.
Unfortunately I haven't tried anything like this myself, I'm just pointing
out what I see wrong about it. I would think preventing the stretching
while keeping conformation to shapes, and still folding, might be possible
somehow by not allowing for much proximity change in some way.
Bob H.
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Yes, the stretching is a problem, and it was only after much experimentation
that I stopped the cloth tearing completely. As I said, I couldn't work out
precisely which parameter affected the spring strength. I agree, it does
tend more towards the appearance of a thin sheet of rubber than cloth.
--
Andy Cocker
---------------------------------------------------------------
listen to my music at:
www.mp3.com/lunarland
---------------------------------------------------------------
'I spilled spot remover on my dog. He's gone now. '
'I went to a restaurant that serves "breakfast at any time."
So I ordered french toast during the Renaissance. '
- Steven Wright.
---------------------------------------------------------------
Post a reply to this message
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very impressive, i wouldn't worry about the rubber look, all CG cloth tends
to look a little like that :)
--
Rick
POV-Ray News & Resources - http://povray.co.uk
Kitty5 WebDesign - http://kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
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Hi Andy,
Nice test, and nice test scene/environment.
The slight crinkly motion reminds me of clay-mation or stop-mo. It has a real
quality to it, kinda like a perfect mix between frame-to-frame hand animation
and simulation.
By crinkly motion, i mean the sudden changes from frame to frame in the form of
the creases. It looks just like aliasing in time - is that what it is?
It's good to see how well the cloth behaves when colliding with dynamic shapes.
do more tests!!
benp
Andy Cocker wrote:
> Hi,
>
> This is the result of my first Clothray experiment. Unfortunately, I haven't
> yet managed to work out the effect that each variable has on the cloth's
> behaviour, so this is more the result of trial and error than planned
> outcome. I hope you like it anyway.
>
> --
> Andy Cocker
>
> ---------------------------------------------------------------
> listen to my music at:
> www.mp3.com/lunarland
> ---------------------------------------------------------------
>
> 'I spilled spot remover on my dog. He's gone now. '
> 'I went to a restaurant that serves "breakfast at any time."
> So I ordered french toast during the Renaissance. '
>
> - Steven Wright.
> ---------------------------------------------------------------
>
> Name: Cloth_A.mpg
> Cloth_A.mpg Type: QuickTimePlayer File (video/mpeg)
> Encoding: x-uuencode
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"Ben Paschke" <ben### [at] rsp comau> wrote in message
news:3A95A623.AD0D521A@rsp.com.au...
> Nice test, and nice test scene/environment.
Thankyou.
> The slight crinkly motion reminds me of clay-mation or stop-mo. It has a
real
> quality to it, kinda like a perfect mix between frame-to-frame hand
animation
> and simulation.
> By crinkly motion, i mean the sudden changes from frame to frame in the
form of
> the creases. It looks just like aliasing in time - is that what it is?
I know exactly what you mean.. I was thinking along the same lines.
Basically, all I did was to rotate the cloth x*-90 and let it drop, then
once it had stopped moving, I rotated the cloth 'on the spot' back to x*0.
Not that this action could ever happen in reality, and I guess it's that
that gives it the stop-frame quality. As I said..I felt like I was just
fumbling around until I ended up with this anim.
> It's good to see how well the cloth behaves when colliding with dynamic
shapes.
Well, the fact is that it doesn't behave all that well with a lot of
shapes.. sharp edges of any kind can 'cut' through the cloth.. even hanging
the cloth on a small sphere causes the cloth to stretch too much and the
cloth cuts through the underside of the sphere.
> do more tests!!
I shall.
--
Andy Cocker
---------------------------------------------------------------
listen to my music at:
www.mp3.com/lunarland
---------------------------------------------------------------
'I spilled spot remover on my dog. He's gone now. '
'I went to a restaurant that serves "breakfast at any time."
So I ordered french toast during the Renaissance. '
- Steven Wright.
---------------------------------------------------------------
Post a reply to this message
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Ben Paschke wrote:
>
> Hi Andy,
>
> Nice test, and nice test scene/environment.
I agree too.
> The slight crinkly motion reminds me of clay-mation or stop-mo. It has a real
> quality to it, kinda like a perfect mix between frame-to-frame hand animation
> and simulation.
> By crinkly motion, i mean the sudden changes from frame to frame in the form of
> the creases. It looks just like aliasing in time - is that what it is?
> It's good to see how well the cloth behaves when colliding with dynamic shapes.
Well, it's not really collision with dynamic shape (I think that it
doesn't work in most cases).
It seems that Andy re-run totally the simulation at each frame (and not
from its previous position), so the cloth seems to follow the shape
modification.
Am I right ? (Am I Clear ???)
Bouf.
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"Christophe Bouffartigue" <Chr### [at] nanterremarellifr>
wrote in message news:3A9633B4.F4986686@nanterre.marelli.fr...
<snip>
> Well, it's not really collision with dynamic shape (I think that it
> doesn't work in most cases).
> It seems that Andy re-run totally the simulation at each frame (and not
> from its previous position), so the cloth seems to follow the shape
> modification.
> Am I right ? (Am I Clear ???)
Yes, that's correct.
--
Andy Cocker
---------------------------------------------------------------
listen to my music at:
www.mp3.com/lunarland
---------------------------------------------------------------
'I spilled spot remover on my dog. He's gone now. '
'I went to a restaurant that serves "breakfast at any time."
So I ordered french toast during the Renaissance. '
- Steven Wright.
---------------------------------------------------------------
Post a reply to this message
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