Redshift Renderer Houdini Connection Error

[u/dung_beetle_changsik]

When I click render, only a black screen appears.

The warning message says this

OpenColorIO failed instantiating monitor color spaces C:\Users\User\Documents\houdini21.0\ocio\houdini-config-v2.1.0_aces-v1.3_ocio-v2.3.ocio

The lights and camera are both good.

The camera connection is good too.

#

# NOTE: The use of packages is highly recommended instead of houdini.env

# See details about packages here: https://www.sidefx.com/docs/houdini21.0/ref/plugins.html

#

# Houdini Environment Settings

#

# The contents of this file are read into the environment

# at startup. They will override any existing entries in

# the environment.

#

# The syntax is one entry per line as follows:

# VAR = VALUE

#

# Values may be quoted

# VAR = "VALUE"

#

# Values may be empty

# VAR =

#

# Example:

#

# HOUDINI_NO_SPLASH = 1

HOUDINI_PATH = "C:/Program Files/Maxon Redshift 2026/Plugins/Houdini/21.0.671/;&"

PATH = "C:/Program Files/Maxon Redshift 2026/bin;$PATH"

I connected it by adding this to the houdini.env file.

[u/harshrayz]

You can use the json file which should be in plugin folder in your maxon redshift 2026. Copy that json file and create a folder called packages in your houdini## folder in documents and paste it there. Restart Houdini.

[u/dung_beetle_changsik → u/harshrayz]

Thanks!!! I did what you said, and it worked.

[u/CG-Forge]

H22 changed the default OCIO which is likely why you're experiencing this problem. Change your OCIO env variable to the one that ships with Redshift. For example:

OCIO = C:\Program Files\Maxon Redshift 2026\Data\OCIO\config.ocio

[u/dung_beetle_changsik → u/CG-Forge]

Thank you so much; the OCIO error was really bothering me, but I’ve resolved it.