[Sidefx-houdini-list] Point cloud rendering

Simon Kapeniak szymon.kapeniak at gmail.com
Mon Oct 27 11:11:54 EDT 2008


There is a fake AO shader using similar technique that you can find on
odforce.
http://forums.odforce.net/index.php?showtopic=5114&hl=point+cloud+ambient+fake+shader


2008/10/27 Olex P <hoknamahn at gmail.com>

> Yes you can do it. Use pcopen()/pciterate() functions and "distance"
> channel
> from the cloud.
>
> On Mon, Oct 27, 2008 at 2:10 PM, Andy Nicholas <andy at andynicholas.com
> >wrote:
>
> > Hi,
> >
> > Does anyone know if it's possible to use point cloud techniques to render
> > a grey scale map on an object according to how close points from a
> > separate point cloud are to its surface? I guess the effect would be
> > similar to creating light instances at the point positions with linear
> > fall off, but I can't use this method as it'd be too costly in render
> > time.
> >
> > Maybe there are other methods I could look at using?
> >
> > Thanks
> >
> > Andy
> >
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