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Okay, so I've always had at least a basic understanding of Gamma correction and linear work flow. Lately I've been working really hard on understand it more and applying that understand... Anyways, I'm in 3d max say, and I'm using Vray. I've got 3dmax working in linear workspace obviously and I'm having Vray output 1.0 Gamma. If I save that final render out as a 32bit HDRI then open it up in photoshop CS2... Photoshop appears to be applying gamma 2.2 automatically. I've confirmed this by reading this following site.
My question is why does photoshop do this? And how are you supposed to utitlize a linear workflow in gamma 1.0 in photoshop if it is automatically adjusting it to 2.2? If you open up the adobe bridge browser it is showing the thumbnails with the proper 1.0 gamma, just when you open them it's 2.2. Also, if you save out say an EXR file at 32 bit it does the same thing, along with TIFFs, however, if you save at 8 bit it doesn't automatically change the display gamma to 2.2.
There are so many opinions and tutorials online it took me forever to figure out this is what was happening. Alot of people were saying to render at 2.2 and save out as HDRI. However, when you do that and open it up in photoshop, it's making the gamma 2.2 X 2 making it very washed out. That killed my brain all last night until I found that link I pasted up there about PS automatically adjusting it.