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Rendering with Arnold in Houdini and Solaris using the HtoA plug-in.
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Missing Arnold Shaders with htoa- py37 Houdini 19.5.303 on Ubuntu 20.04

Message 1 of 4
1022 Views, 3 Replies

Missing Arnold Shaders with htoa- py37 Houdini 19.5.303 on Ubuntu 20.04

Screenshot from 2022-08-08 13-07-03.png

Screenshot from 2022-08-08 13-05-09.png

Screenshot from 2022-08-08 13-06-04.png


These are my env file, Houdini variables and the version of Arnold I installed.

For all I can tell everything in Arnold is working except for the shaders which are all missing from both /mat and /shop.

Even the Arnold VOP network is not there, and I have no "Arnold" at the top of the Tab-menu in any of these contexts.


I tried removing all my other plug-ins but nothing seems to fix the issue.

I also checked the license and everything is up.

There is no traceback error when opening or closing Houdini.


However when I try to create an Arnold light I am met with this error:

Screenshot from 2022-08-08 13-11-06.png


Same thing happens with the Arnold Volume node in /obj:

Screenshot from 2022-08-08 13-11-57.png


Other than that the Arnold menu is showing at the top and I can create Arnold ROPs in /out.


How can I go about fixing this?


Thank you for reading and have a nice day.


EDIT: One more thing; I also switched the ACES and Arnold orders in the .env file but to no avail Im afraid.

Message 2 of 4
in reply to: mats_nyman

The default Houdini 19.5 install is the Python 3.9 version of Houdini

You have the HtoA for Python 3.7


What Houdini did you install? 3.7 or the default (3.9) ?

// Stephen Blair
// Arnold Renderer Support
Message 3 of 4
in reply to: mats_nyman

Oh that seems to have fixed it. Didn't think of that!

Thank you so much Stephen

Message 4 of 4
in reply to: mats_nyman

Thanks, I had the same problem and was able to fix it!

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