question

Tim Harding avatar image
Tim Harding asked

Houdini installation issues

I am installing HtoA for the first time with Houdini FX 17.0.352 and HtoA 3.2.0. The Arnold ROP and obj menu (Arnold Procedural, Arnold Volume, etc.) are there, but none of the SHOP nodes, such as the Standard Shader, are available. I am also unable to start a render in the Render View, it spends some time on "Generating Scene" and then shows "Error: Failed to save output to file." When I try to create a light from the shelf menu, I get the following output:

Traceback (most recent call last):
  File "arnold_skydome_light", line 7, in <module>
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\objecttoolutils.py", line 535, in genericCameraLightTool
    camlight = genericTool(scriptargs, nodetypename, nodename, clicktoplace)
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\toolutils.py", line 1383, in new_func
    return function(*args, **kwargs)
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\objecttoolutils.py", line 494, in genericTool
    exact_node_type = exact_node_type)
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\objecttoolutils.py", line 428, in genericObjNodeGeneratorTool
    exact_node_type )
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\objecttoolutils.py", line 366, in createObjNode
    exact_type_name = exact_node_type)
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\houpythonportion\ui.py", line 706, in decorator
    return func(*args, **kwargs)
  File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.352/houdini/python2.7libs\hou.py", line 8319, in createNode
    return _hou.Node_createNode(*args, **kwargs)
MatchDefinitionError: Failed to match node type definition.
Error:       Bad node type found: arnold_vopnet in /obj/arnold_skydome_light1/shopnet.
             Bad node type found: arnold_light in /obj/arnold_skydome_light1/shopnet/arnold_vopnet.
             Unknown operator on load "arnold_skydome_light1/shopnet/arnold_vopnet/OUT_light".
             Unknown operator on load "arnold_skydome_light1/shopnet/arnold_vopnet/OUT_light".
             Unknown operator on load "arnold_skydome_light1/shopnet/arnold_vopnet/OUT_light".

On the console, I see the following Arnold-related message:

00:00:00    52MB         | [rlm] authorized for "arnold 20181110" from server 10.0.1.201 in 0:00.04
00:00:00    52MB         | [rlm] expiration date: 10-nov-2018 (11 days left)
The file 'C:/Users/tim/Documents/houdini17.0/toolbar/default.shelf' is already loaded.The file 'C:/Users/tim/htoa/htoa-3.2.0_r9e1313b_houdini-17.0.352/htoa-3.2.0_r9e1313b_houdini-17.0.352/toolbar/arnold.shelf' is already loaded.The file 'C:/Users/tim/htoa/htoa-3.2.0_r9e1313b_houdini-17.0.352/htoa-3.2.0_r9e1313b_houdini-17.0.352/toolbar/arnold_lights.shelf' is already loaded.

I have tried the installation manually and automatically with the same results. Any help would be appreciated.

8 comments
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Can you post your houdini.env, and the details from Help > About Houdini > Show Details ?

0 Likes 0 ·

Thanks, I don't see anything wrong in those files.
What's logged in the Output Window when you start Houdini and it loads HtoA?

For the Shop nodes, you don't see Arnold > Arnold Shader Network at the top level?

You have to go into that vopnet to add things like Standard Surface

0 Likes 0 ·
Show more comments
Stephen Blair avatar image
Stephen Blair answered

Remove C:\solidangle\mtoadeploy\2018\bin from PATH

Having other Arnolds in PATH always causes problems when you use different apps (eg Houdini and Maya)

10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Ilarin75 Ilarin75 avatar image
Ilarin75 Ilarin75 answered

I hope it will help somebody with the same issue.
https://www.sidefx.com/forum/topic/77814/?page=1

10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Welcome to the Arnold Answers community.

This is the place for Arnold renderer users everywhere to ask and answer rendering questions, and share knowledge about using Arnold, Arnold plugins, workflows and developing tools with Arnold.

If you are a new user to Arnold Answers, please first check out our FAQ and User Guide for more information.

When posting questions, please be sure to select the appropriate Space for your Arnold plugin and include the plugin version you are using.

Please include images, scene and log files whenever possible as this helps the community answer your questions.

Instructions for generating full verbosity log files are available for MtoA, MaxtoA, C4DtoA, HtoA, KtoA, and Kick.

If you are looking for Arnold Documentation and Support please visit the Arnold Support site.

To try Arnold please visit the Arnold Trial page.

Bottom No panel present for this section.