custom variables

[hatrick]

Hi,

Please see the attached example scene. I ve setup a custom attribute which is getting mapped as a custom variable. Could someone please explain how to use that custom variable for further simple operations. I thought setting a parameter $VARIABLE should work but ... ?

Thank you

HT

pointdistance_v01.hip

Edited March 5, 2012 by hatrick

[magneto]

I think for it to work on PolyExtrude SOP, dist has to be a primitive attribute, not point. If you do this, then it works.

But I am not sure if that's correct

[hatrick]

thank you magneto.... could you please explain ... why is that )? ... and how about a transform sop ... i.e how to drive the scale parameter. i ve no specific goal here, just a matter of interest.

please see the example

thank you

pointdistance_v02.hip

[hatrick]

better example

pointdistance_v03.hip

Edited March 6, 2012 by hatrick

[magneto]

I am not really sure of the actual reason but I thought PolyExtrude working on polys/prims, it works with prim attributes only.

In your example, now it's correct, but the DIST attribute is too small to see any effect.

[gaurav]

and how about a transform sop ... i.e how to drive the scale parameter. i ve no specific goal here, just a matter of interest.

Try promoting it to class detail and use it.

Transform sop needs a single value for the entire geometry.

Cheers,