Kym watts

Kym Watts

About Me

Snr Pipeline TD @ Gurustudio in Toronto



Houdini Skills


Not Specified

Recent Forum Posts

Python and USD Stage July 6, 2023, 7:09 a.m.

Every node in solaris outputs a usd stage.

The folks over at Nvidia-Omniverse have this great resource, which has clear examples and well as easy explanations to follow here: []

If you follow along with these, you can pretty much copy/paste the example code directly into a python script lop, just make sure to comment out the line that declares the stage variable, as you want to take the stage variable the python script lop has already provided to you.

You can also remove the Export at the end, as Solaris will keep the stage that you have created or modified in the python script lop and make it available to any of the downstream nodes.

This then makes it easier to use the usd api docs in practice in houdini.

Further learning if you want to see how some of houdini uses the python usd api directly, then taking a look at the usdaddassetstogallery hda in a topnet, shows some of the awesome utilities the devs have written to utilize the api and make our workflows more efficient.

My entry point for learning the python usd api was because i wanted to understand why our studio assets wouldn't work with the usdaddassetstogallery hda, i realized that we could tweak our asset publishing workflow and have them render the thumbnail and update the asset gallery directly.

Hope this helps.


half complete on a single work item Dec. 10, 2021, 11:17 p.m.

Hey folks,

I'm not sure what this icon means.
right now I'm testing with a Single work item , its running through a python script that pulls from our environment class and populates a environment edit node.
Running the code out side of houdini runs with out an exist code so I'm a bit stumped.
after running the python script node , i get some known verbosity/stdout that works fine in a shell, but im not sure i understand the reason as to why its failing on 1 thing ,but completing one 1 other thing ?
i have no errors in the console or in the %houdini_temp%, so like i said im stumped.


Houdini 19 doesn't load AT ALL on Ubuntu 21.10 Nov. 21, 2021, 9:41 a.m.

Apparently some users had luck installing some linux missing libraries:
sudo apt install libopengl0 freeglut3 freeglut3-dev

Using Pop_os 21.04, this fixed houdini 19.0.383 not showing anything in the sceneview and crashing when switching to a render engine such as karma in a solaris view.