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Rendering with Arnold in Houdini and Solaris using the HtoA plug-in.
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HtoA and HQUEUE

4 REPLIES 4
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Message 1 of 5
Anonymous
856 Views, 4 Replies

HtoA and HQUEUE

I`m trying to render with Houdini 17.5 HQUEUE and HtoA 4.4.0 on a small render farm but I have this error all the time.


Accessing "\\Desktop-u26ro1c\hq\houdini_distros\hfs.windows-x86_64\bin\hython" ...

Loading .hip file \\Desktop-u26ro1c\hq/projects/ArnoldIntro_new.hip.

PROGRESS: 0%ERROR: The attempted operation failed.

Error: No command specified for rendering

Unable to evaluate expression (

Traceback (most recent call last):

File "<stdin>", line 2, in expression

ImportError: No module named htoa.searchpath

(/out/arnold1/soho_pipecmd)).


any help ? Thanks

Labels (3)
4 REPLIES 4
Message 2 of 5
Stephen.Blair
in reply to: Anonymous

Looks like your Python environment isn't set up correctly. That's a standard HtoA module.



// Stephen Blair
// Arnold Renderer Support
Message 3 of 5
Anonymous
in reply to: Anonymous

Thank you Stephen. I don`t understand way this happening. Houdini is 17.5.391 and HtoA is 17.5.391. Render farm is working fine with mantra. The ENV are there in houdini.env as well. Arnold is working fine also in Houdini but i have this message in HQ when Arnold start rendering the first frame. I did try to add these ENV in hq_render advance but there is no difference.

Any ideas ?

Message 4 of 5
Anonymous
in reply to: Stephen.Blair

Thank you Stephen. I don`t understand way this happening. Houdini is 17.5.391 and HtoA is 17.5.391. Render farm is working fine with mantra. The ENV are there in houdini.env as well. Arnold is working fine also in Houdini but i have this message in HQ when Arnold start rendering the first frame. I did try to add these ENV in hq_render advance but there is no difference.

Any ideas ?

Message 5 of 5
Stephen.Blair
in reply to: Anonymous

I'd say it's probably a Python path problem. I'd use Process Monitor and Process Explorer: where is it looking for the HtoA modules, and what are the env var settings in the Hqueue processes...



// Stephen Blair
// Arnold Renderer Support

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