Arnold and HoudiniHairProcedural in Solaris

Community USD
1

Hi everyone,

I’m trying to apply a procedural approach in USD such as the ones in https://www.youtube.com/watch?v=u-VDbebW8Oc and https://www.youtube.com/watch?v=0Iv1NjM2nHs

Everytime that I try to switch from Karma to Arnold materials and rendersettings houdini crashes.

Am I trying something impossible because hair procedural is only meant to be used for Karma or amI doing something wrong?

Thanks in advance

2

The “HoudiniHairProcedural” in Solaris is processed using python code at the start of a husk render. This happens purely at the USD level before anything is sent to the renderer. You can do the equivalent in a LOP network using the Preview Procedural LOP. This procedural should be authoring perfectly normal USD basis curve prims, so Arnold (and any other render delegate) should have no issues with it.

Feel free to submit a bug to SideFX, especially if you have a simple hip file you can share. If you are getting a crash log, that would be really useful as well.

Thanks, Mark