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Participant
September 7, 2022
Answered

ACES Workflow - Painter to Arnold - HDRi

  • September 7, 2022
  • 2 replies
  • 868 views

Hi,

I got few questions on how to use the HDRi maps in Painter (and Maya 2022 and Arnold).

What colorspace do I have to choose, if I want to get the exact same result for my asset in Painter and Arnold 

  • If my HDRi map is already preconverted in ACES
    • in Painter ?
    • in Maya ?
  • If my HDRi map isn't preconverted ( I guess that's the case for default maps like Tomoco, Panorama...)
    • in Painter ?
    • in Maya ?

Hope it's clear. Thahks

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Correct answer sharktacos

If you are working in ACES then HDRI maps need to be in the working color space: ACEScg. Many HDRI maps found on the web are in sRGB/Rec709 scene-linear so they need to be converted into ACEScg.  So the input transform would be Utility - Linear sRGB/Rec.709.

 

To get the same result in both programs you need to input the maps the same way in both.

 

2 replies

sharktacosCorrect answer
Inspiring
September 11, 2022

If you are working in ACES then HDRI maps need to be in the working color space: ACEScg. Many HDRI maps found on the web are in sRGB/Rec709 scene-linear so they need to be converted into ACEScg.  So the input transform would be Utility - Linear sRGB/Rec.709.

 

To get the same result in both programs you need to input the maps the same way in both.

 

Participant
September 30, 2022

Thanks for your reply. I'll do this.

Regards.