have seen this on some production shots.
because of massive scene size (as in: things happening a long way from the
origin) we ran into limits of floating point precision.
The solution was to offset the whole shot (parent whole scene under a null) so
it was centered around the origin, and rebake all pointcaches.
incidentally it was hair for feathers on birds – with the erratic random jitter
they were kind of like flapping around in the breeze – and with the fixed and
stable caches the hair/feathers ended up too stable to my taste.
this was all long before ice and strands – but floating point precision limits
still exist.
if your scene is very big or very small (size not complexity), or action is
happening very far from the origin – that could be the cause.
From: Mirko Jankovic
Sent: Friday, June 12, 2015 10:00 AM
To: softimage@listproc.autodesk.com
Subject: Re: Paul Smiths Fuzz for animation
Maybe it is not only with fuz.. I'm actually having same issue but with
softmiage hair.
with animated character hairs jitter like changing places in every frame...
so it maybe is not something from the fuzz...
On Fri, Jun 12, 2015 at 9:55 AM, Alok Gandhi <alok.gandhi2...@gmail.com> wrote:
I have no idea of the tool and I can be absolutely wrong but just out of the
blue do zero out any epsilon values in the greater than / smaller than nodes
(if any).
On Fri, Jun 12, 2015 at 1:20 PM, Morten Bartholdy <x...@colorshopvfx.dk>
wrote:
I have had the pleasure of testing Paul Smiths excellent Fuzz for applying
fur - great tool with comprehensible controls for grooming short fur.
Unfortunately it looks like the strands orientation jitter when the generator
surface is animated - deformation as well as SRT. It is set up for animation,
so the strands stay on the deformed surface, but I have this jitter. Did anyone
here succesfully find a fix for that?
I did write to Paul BTW, but I guess he is busy, so no reply yet. After all
this is a free (donationware)tool so I am certainly not expecting him to
provide support :)
It would be awesome if I could get it working, as it will be hard to redo
the grooming with other tools , plus I have no time for looking into Kristinka
or Melena.
Cheers
Morten
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