Displacement popping problem 2004-06-02 - By Dan Yargici
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Sorry, should read adaptive wherever I wrote parametric....
-- -- Original Message -- --
From: "Dan Yargici" <dan@(protected)>
To: <XSI@(protected)>
Sent: Wednesday, June 02, 2004 3:19 PM
Subject: Re: Displacement popping problem
> I understand fine is great Kim, but I just finished a job where fine was
causing us problems and
> with the parametric displacement I got a decent looking result with lightning
fast render times
due
> to it only tessellating once (and in this case speed far outweighed the need
for detail). I guess
> it just depends on the shot. Though I will conceed that parametric
displacement requires you to
> have geometry that suits it's way of working in some aspects, where with fine
it's mostly just a
> case of blah! tadaa! (technical term, that).
>
> I should add again that I'm talking about parametric displacement with view
-dependancy off. With
it
> on, I agree, it can be pretty kooky....
>
> -- -- Original Message -- --
> From: "kim aldis" <kim@(protected)>
> To: <XSI@(protected)>
> Sent: Wednesday, June 02, 2004 2:46 PM
> Subject: RE: Displacement popping problem
>
>
> > My experience has definitely been that length/distance/angle isn't that
> > reliable. In fact, fine came to us in 3.5 as an improvement on that method.
> > Fine along with view dependancy will subdee to sub-pixel level where you
> > won't see any of the crap that goes with the old adaptive method. My advice;
> > always use fine/view dependance.
> >
> > > -- --Original Message-- --
> > > From: owner-xsi@(protected)
> > > [mailto:owner-xsi@(protected)] On Behalf Of Dan Yargici
> > > Sent: 02 June 2004 12:02
> > > To: XSI@(protected)
> > > Subject: Re: Displacement popping problem
> > >
> > > Hi Chris, what displacement settings are you using? If
> > > you're using length/distance/angle with 'view dependant' on
> > > and the object is moving slowly into frame this could be the
> > > cause of your woes... just a thought. I find that if you use
> > > length/distance/angle it's always better to leave view
> > > dependant off anyway. Your renders will be much quicker as
> > > it won't re-tessellate before every frame. Unless you have
> > > anything animated in your render tree that is.
> > >
> > > DAN
> > >
> > > -- -- Original Message -- --
> > > From: "Chris Marshall" <chris@(protected)>
> > > To: <xsi@(protected)>
> > > Sent: Wednesday, June 02, 2004 1:05 PM
> > > Subject: Displacement popping problem
> > >
> > >
> > > > Hello all,
> > > > I have a spherical object thats surface is displaced by a
> > > cell texture to
> > > > make it look a bit like a spikey ball. All is fine, and
> > > I've managed to
> > > > render well over a thousand frames with no problems, but my
> > > client has just
> > > > spotted that in 1 scene where the ball slowly moves into
> > > frame, some of the
> > > > spikes look like they're masked by some invisible matte,
> > > for about 6 frames,
> > > > then they pop back on.
> > > > I've tried all sorts of stuff, and as I'm typing this, our
> > > DS guy is trying
> > > > to DVE the spikes back in, but it's not looking so good.
> > > > Any ideas would be welcome.
> > > > Cheesr
> > > >
> > > > Chris
> > > >
> > > >
> > > > Chris Marshall
> > > > Senior Animator
> > > > Eclipse Creative Limited
> > > > Tel: +44 (0) 29 2047 0070
> > > > Fax: +44 (0) 29 2047 0071
> > > > www.eclipsecreative.co.uk
> > > > www.eclipsecreative.tv
> > > >
> > > >
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