Hello.

How could I change the default view transform for the viewport and Mplay only?

Every time I launch Houdini, the view transform is set to un-tonne-mapped, even if I change it to ACES 1.0 SDR-video in the OCIO Editor during a previous Houdini session.

I know I can edit the .ocio file in the Houdini config folder, but when I do that, I encounter some errors with Redshift during rendering.

I'm using Houdini 20.5.322 and Redshift 2025.0.2

You could do it with some python to automatically run on start-up. Under Color Correction, hou.SceneViewer has a method called setOCIODisplayView() which should do what you want.


https://www.sidefx.com/docs/houdini/hom/hou/SceneViewer.html#flipbookSettings [www.sidefx.com]