Known Issues

List of known issues or limitations with Houdini or the Carbon plugin, and their workaround when known.

For the latest list, please visit: https://numerion-software.com/index.php/forum/technical-creative-houdini/37-known-issues

multiparm warnings in DOP with Carbon Binding or Carbon Welding

Loading a scene with DOP Carbon Binding / DOP Carbon Welding, or creating a DOP Carbon Binding / DOP Carbon Welding causes warnings similar to the ones below to be printed to the Houdini Console.

<internal> Warning(33): incorrect number of #s in 'objectA' for multiparm depth of 1

It has no known effect on the simulation.

Invalid parameter name sharedata warnings in DOP with Carbon Rigid Body

Loading a scene with DOP Carbon Rigid Body, or adding a DOP Carbon Rigid Body causes warnings similar to the ones below to be printed to the Houdini Console.

emptyobject OP_Parameters::evalIntT(): Invalid parameter name sharedata

It has no known effect on the simulation.

Geometry Guides don’t update.

Reset the simulation to see the Geometry Guides correctly drawn.

Relationship nodes such as Carbon Binding, Carbon Stitching, … etc. don’t respond well to be included inside a digital asset as the list parameters don’t call their callback scripts when they are modified programatically.

Use either opparm -C or hou.Parm.pressButton() on the list parameters such as cloth#, group# …etc.

Renaming obj nodes such as cloth/colliders breaks relationship setup as they keep the old names.

There are currently no known workarounds to this issue.

Houdini Help browser prevents downloads.

The default Houdini Help browser does not support clickable links for file downloads. Fix by setting environment variable HOUDINI_EXTERNAL_HELP_BROWSER = 1 to use your system browser rather than Houdini’s internal one.