[Sidefx-houdini-list] Point clouds

François Duchesneau sidefx at trinix.ca
Thu Apr 2 08:51:51 EDT 2009

Usually what I do is look at the example in the help of pcopen or 
pcfilter and it gives you an example of how to open it and extract data 
out of it.

In you case you will probably need "point.distance" keyword in pcimport. 
For the rest, you can create any point cloud with the Scatter Sop and 
write any custom attribute you want. I don't know if it's better to use 
a .pc format but I've always saved that to .bgeo and it works fine.

Test it out with a simple shader that extract the distance and pipe it 
to Cf before going into the Voroinoi coding.


Andy Nicholas wrote:
> Hi,
> Can anyone help, I need to get get point clouds working with a shader but
> so far I've been unable to make it work. All I want to do is to be able to
> create a Voronoi cell type pattern based on the point cloud. It should be
> simple.
> I had a look at the example on the Odforce Wiki, but it doesn't work
> either. Does anyone know of a tutorial or example of a simple point cloud
> shader working?
> Thanks a lot
> Andy
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