Hi,

In my Render View the image looks fine, but when I'm saving to disk (doesn't matter if exr, jpg or png) it looks wrong. Somehow washed out and with wrong gamma.
I'm rendering with arnold and applied the ACES workflow, so Houdini should be setup correctly.

The Arnold Rop is set to ACES Colorspace aswell, but it seems that it just works in Render View, not in the final render to disk.
I tried various things in the “save Frame” Context such as tick/untick the “Convert to Image Formats Colorspace” or trying some Gamma values. Still the same.

Thanks in advance

Ok nevermind.
I had to apply the “sRGB for ACEScg Houdini” - Lut that comes with ACES in the “save Frame”-Context, and untick “Convert to Image Formats Colorspace”. That seemed to fix it.
Not quite sure if thats the correct workflow but the colors are equal now.

SiRpRoHxO
Ok nevermind.
I had to apply the “sRGB for ACEScg Houdini” - Lut that comes with ACES in the “save Frame”-Context, and untick “Convert to Image Formats Colorspace”. That seemed to fix it.
Not quite sure if thats the correct workflow but the colors are equal now.

I usually use COPs and the ociotransform node to bake in the color space when saving to a device-space format such as jpg.

thanks, I'll keep that in mind

Where are the luts that come with Houdini? I cant ffmpeg flipbook with correct color space and the Nuke OCIO files dont have .lut files to convert to sRGB

Depending on what script you use to build the OCIO profile, it may or may not have luts generated. They're only needed for legacy software, so I can see pipelines wanting to skip that step.

The OCIO profile defines the color transforms programmatically. Some spaces may be defined by cube maps or other lookup tables, but these aren't intended for direct consumption. In NUKE, there will be nodes for transforming color spaces using OCIO, the read and write nodes will have the colorspace as a selectable option as well.

the problem is simple, export whatever is on the MPLAY in the correct colorspace (ACES CG) to disk, either jpegs or ffmpegs. Either way it doesnt work and I get a very different color look than what's in the viewport/ mplay.