ACES red tint

[trogers]

Hi, I'm wondering if anyone else has noticed this issue and or if someone can point me to what I could possibly be doing wrong.

If I export a render from Octane Standalone or any of the plugins as ACES the resulting image once imported into an image editing app like Affinity Photo, Photoshop or even Davinci Resolve shows a considerable red tone. For the attached render I'm using Houdini's MPlay to be able to use it's ACES view transform (I'm using ACES 1.2, however this issue is consistent with the earlier releases as well). In Affinity and other tools I'm converting from ACES 2065 > Scene linear. I get a slight bit less of the red tint when converting from ACEScg to SL, but then it doesn't match the color saturation seen in the IPR and is still tinted. I realize that it's still early days for ACES in Octane, but I thought I'd bring it up in case there's an issue with the implementation.

Thanks in advance,
Travis

Render as viewed through MPlay with the ACES view transform

Render opened in Affinity and converted with the OCIO adjustment layer set to ACES 2065 > Scene linear

Imager settings

ROP settings

[DiegoCP]

Hey there! fiting with the very same problem, did you find a solution?

[trogers]

Hi Diego,

Unfortunately I couldn’t find a good solution besides white balancing my image after in Photoshop (Photoshop does a much better job at white balancing than Affinity Photo.). I decided to just wait until ACES and OCIO are more fleshed out in Octane before I make an attempt to use it again. Sorry I couldn’t be of more help, but I’d love to know if you find a decent solution in the meantime.

[jimho]

ACES is a relatively new color system,
Per Wikipedia's explanation this color space is using CIE D60 (means color temprature of 6000K) as the white point,
usually PC monitor assume 6500 as the white point, this is the reason ACEs images will look red.

[jimho]

I have played arround a little bit with aces in 2010.1.5，
the exr file in aces color space can be opened in photoshop, and shows there is an aces color profile embeded.
means this image is done color management,
if without color profile tagged, the redish is not strange as above mentioned the ACES color space have a different white point.
usually if an image is proper color managed, in theory, it should appear to be right color,
but here is not,
means either the profile embeded is not the right one, or there is something wrong with this ACES EXR.
So it is unusable at the moment.
unless you do not mind the redish color change.