Max 2026 OCIO Coronabitmaps

Been taking a look at shifting over from Gama 2.2 to the OCIO workflow in Max and Corona.

The biggest issue so far is finding that the render becomes quite sluggish if you have a ton of Max’s default bitmaps, no biggie, just use corona converter to convert them…

So once the maps are converted , there is still the issue where the maps are using the linear color space, regardless of what your color management settings are.

if you create a CoronaBitmap, this isnt an issue, its kind of crazy to select and set hundreds of maps to use Color Space sRGB in a single scene every time. Has anyone else run into this issue and found a workaround or solution? Issue still persists in Corona 13 hotfix 2

This is already fixed in Corona 14.
I am attaching two scripts which let you change the “RGB primaries” setting for all or selected Corona Bitmaps. You can change the number “3” to pick a different value.

Hope that helps. :smiley:
all-CorBitmap-set-rgb-primaries-auto.ms (81 Bytes)
selected-CorBitmap-set-rgb-primaries-auto.ms (377 Bytes)