 | | | pintable displacement | pintable displacement 2004-05-13 - By kim aldis
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There's absolutely no reason why there should be noise or why the
displacement shouldn't be clean and sharp using a displacement map. If you
want to break the polygons from the surface then you should create polygonal
discontinuity along the edges you want to break from the rest of the
geometry. Try a displacement map on a cube to see what I mean.
Ben's example is a good one but you should have view dependancy on, Ben, in
order to keep the geometry at optimum complexity. There's a danger of there
being either too many or not enough polygons in the view; you'll either get
memory problems or artifacts and moving closer or away from the object will
make matters worse.
> -- --Original Message-- --
> From: owner-xsi@(protected)
> [mailto:owner-xsi@(protected)] On Behalf Of +
> Sent: 12 May 2004 22:11
> To: XSI@(protected)
> Subject: Re: pintable displacement
>
> because this is not a clean solution and would create
> unwanted displacement noise on the geometry (wouldn't be
> perfectly sharp) i guess. as i asked, i'm interested to know
> how i can drive the displacement or extrusion of polygon
> faces (with the merge-off like way so they're independent)
> via displacement maps as seen on the example.
>
>
> Marc Bommersheim wrote:
>
> >Why don�t you prepare a texture in 2D.
> >Use a mosaic effect to create flat surfaces and a matte with
> the holes
> >to sparate them.
> >
> >Marc
> >
> >
> >
> >+ wrote:
> >
> >
> >
> >>hi all,
> >>
> >>does anyone of you know how i can make a
> pintable-like-displacement on
> >>objects... for example the faces are displaced like an
> extrusion with
> >>the option "merge off", but this displacement would have
> heights and
> >>depths which are caused by the different greyscale values.
> so i'd like
> >>to get a straight displacement that pushes the particular faces via
> >>the values of the displacement-map.
> >>
> >>this is a good example from sidefx:
> >>http://www.sidefx.com/community/download/samples/pin_table/i
> mages/pin_
> >>table.jpg
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