Do we have all the tools yet in H16 to use a .cube file in the viewer? I noticed that RMB on the color correction bar give us the OCIO controls.
BTW the .cube is used in Nuke as an Input Process with sRGB.
.cube viewer lut/OCIO
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- anon_user_37409885
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- jsmack
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You need to create an OCIO profile. Houdini can't load cube luts directly.
Check out the documentation from the OCIO project.
http://opencolorio.org/ [opencolorio.org]
I recommend downloading the git repos.
Have fun
Check out the documentation from the OCIO project.
http://opencolorio.org/ [opencolorio.org]
I recommend downloading the git repos.
Have fun
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- anon_user_37409885
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- Olaf Finkbeiner
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You might be interested in this:
from H16 documentation (scroll down a bit):
http://www.sidefx.com/docs/houdini/render/linear [www.sidefx.com]
“Using OpenColorIO for display
OpenColorIO can be used for color correction by setting the environment variable OCIO to a valid OpenColorIO configuration file. The default colorspace can be set using the OCIO_ACTIVE_DISPLAYS and OCIO_ACTIVE_VIEWS environment variables. These environment variables are specific to the OpenColorIO library and are not Houdini environment variables, so they cannot be put in the houdini.env file.
When OpenColorIO is active, the gamma and LUT controls are replaced by Display and View menus. These define the output colorspace for the display. The colorspace within Houdini is linear, and the scene_linear role is used to specify the OpenColorIO linear colorspace.
MPlay can load both linear and non-linear files, such as OpenEXR (linear) and JPEG (sRGB). Renders from mantra are in linear space, and flipbooks from the viewport are either sRGB or linear, depending on the “Render Beauty Pass Only” option (linear when On, sRGB when off).
For sRGB files and sources, the source colorspace used for sRGB is defined by the Houdini environment variable HOUDINI_OCIO_SRGB_FILE_COLORSPACE. If this variable is not defined, the OpenColorIO config file is searched for a colorspace that matches srgb, either fully or partially.
This feature is still under development. The current functionality is unfinished and subject to change, and may have thin or no documentation. Please bear this in mind when using this tool.”
and
http://www.sidefx.com/docs/houdini/nodes/vop/ocio_import [www.sidefx.com]
greetings
Olaf
from H16 documentation (scroll down a bit):
http://www.sidefx.com/docs/houdini/render/linear [www.sidefx.com]
“Using OpenColorIO for display
OpenColorIO can be used for color correction by setting the environment variable OCIO to a valid OpenColorIO configuration file. The default colorspace can be set using the OCIO_ACTIVE_DISPLAYS and OCIO_ACTIVE_VIEWS environment variables. These environment variables are specific to the OpenColorIO library and are not Houdini environment variables, so they cannot be put in the houdini.env file.
When OpenColorIO is active, the gamma and LUT controls are replaced by Display and View menus. These define the output colorspace for the display. The colorspace within Houdini is linear, and the scene_linear role is used to specify the OpenColorIO linear colorspace.
MPlay can load both linear and non-linear files, such as OpenEXR (linear) and JPEG (sRGB). Renders from mantra are in linear space, and flipbooks from the viewport are either sRGB or linear, depending on the “Render Beauty Pass Only” option (linear when On, sRGB when off).
For sRGB files and sources, the source colorspace used for sRGB is defined by the Houdini environment variable HOUDINI_OCIO_SRGB_FILE_COLORSPACE. If this variable is not defined, the OpenColorIO config file is searched for a colorspace that matches srgb, either fully or partially.
This feature is still under development. The current functionality is unfinished and subject to change, and may have thin or no documentation. Please bear this in mind when using this tool.”
and
http://www.sidefx.com/docs/houdini/nodes/vop/ocio_import [www.sidefx.com]
greetings
Olaf
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