Just for the irony, last time I saw black pixels in rendered images was
with Soft 3.x network rendering with DEC Alphas!
-=mb.
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
Behalf
> Of kim aldis
> Sent: Thursday, March 16, 2006 7:21 AM
> To: XSI(at)Softimage.COM
> Subject: RE: displacement artifacts
>
> No, nasty little black bits. About a pixel in size.
>
> > -----Original Message-----
> > From: owner-xsi(at)Softimage.COM
> > [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Chris Marshall
> > Sent: 16-March-2006 12:21
> > To: XSI(at)Softimage.COM
> > Subject: Re: displacement artifacts
> >
> > The artifacts aren't shadows are they?
> >
> >
> > Chris Marshall wrote:
> >
> > > What about increasing the size of the images? Maybe
> > doubling the size?
> > > Also, you know I'm going to say this, have you tried
> > Parametric? Don't
> > > give up on it!
> > > Chris
> > >
> > >
> > > kim aldis wrote:
> > >
> > >> I wouldn't think so, there's only a small amount of height there
-
> > >> re-ranged to 0-0.08 from a full range image.
> > >>
> > >> _____
> > >> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > >> Behalf Of Michaël Bentitou
> > >> Sent: 15-March-2006 17:01
> > >> To: XSI(at)Softimage.COM
> > >> Subject: RE: displacement artifacts
> > >>
> > >>
> > >> Yeah it was just a shot in the dark, I know you know
> > better than that
> > >> Kim
> > >> ;-) It can?t be something like not enough information in your
> > >> Trans/disp image like 8Bit/16bit issue, can it ?
> > >>
> > >> -=mb.
> > >>
> > >>
> > >>
> > >> -----Original Message-----
> > >> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > >> Behalf Of kim aldis
> > >> Sent: Wednesday, March 15, 2006 11:28 AM
> > >> To: XSI(at)Softimage.COM
> > >> Subject: RE: displacement artifacts
> > >>
> > >> no, I tend not to do that. ;), but the level of detail is
> > quite fine.
> > >>
> > >>
> > >>
> > >>
> > >> _____
> > >> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > >> Behalf Of Michaël Bentitou
> > >> Sent: 15-March-2006 15:30
> > >> To: XSI(at)Softimage.COM
> > >> Subject: RE: displacement artifacts
> > >> Could your objects be insanely small or large in terms of
> > Softimage
> > >> units ?
> > >>
> > >> -=mb.
> > >>
> > >> -----Original Message-----
> > >> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > >> Behalf Of kim aldis
> > >> Sent: Wednesday, March 15, 2006 10:01 AM
> > >> To: xsi(at)Softimage.COM
> > >> Subject: displacement artifacts
> > >>
> > >> I'm using displacement maps in a way that requires a degree of
> > >> accuracy. I'm making small, slightly raised lumps using a
> > matte image
> > >> to drive transparency. For the displacement I'm using a slightly
> > >> shrunk and softened
> > >> - few pixels - version of the transparency map. This gives
> > me a nice
> > >> rounded edge to the raised, circular lumps. As you might guess,
> > >> though, I'm getting some artifacts. Unusual ones, though. Slight
> > >> pixelation around some of the rounded edges and little
> > black marks on
> > >> the inner areas; where you wouldn't expect them. upping the
length
> > >> doesn't help but increasing the subdee on the mesh - stupidly
> > >> increasing - does. I'd rather not do this because it's hitting
the
> > >> render times.
> > >>
> > >> has anyone seen this; any thoughts?
> > >>
> > >> cheers.
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> kim(at)aldis.org.uk
> > >>
> > >>
> > >>
> > >>
> > >>
> > >
> > >
> > >
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