save 32bit image from VFB problem - it is 8bit

[Jiri.Matys]

Hi,

I want to save 32bit exr from VFB. Of course it is not a problem. But when I load it to photoshop and try edit exposure, find out that there are no floating points. Image is cut off to 8bit even it is 32bit image. How I can save image with all VFB settings to real 32bit image?
Maybe I am doing something wrong but absolutely dont know what. I have latest VRay and render on CPU.
Thank you.

[kosso_olli]

Do you have any LUT or Filmic Tone Mapping applied?

[Jiri.Matys]

Yes, but it doesnt matter, even if I delete them it is still the same. And I have it applied in VFB and everything working fine in VFB so it should in Photoshop too, there is no reason to doesnt.
I found out that only way how to save real 32bit image with all the pixels correct is to disable whole section "display correction" in VFB. When I hide this, image is correctly saved as real 32bit images, but it is useles without all the corrections, denoiser, lens effect and so on.

Can someone from Chaos please put a light on this problem because this is really weird. Thank you.

[kosso_olli]

Well, what is your display correction set to?

[Jiri.Matys]

sRGB I think.

[Jiri.Matys]

It doesnt matter what I do, saved image is still 8bit. Please can someone help me? Thank you a lot.

[hermit.crab]

It doesnt matter what I do, saved image is still 8bit. Please can someone help me? Thank you a lot.

I don't think that's possible since .exr's come out as either 16bit or 32bit. Are you using EXR IO to open the image in PS? Check if the "Mode" (PS > Image > Mode) is set to 32-bit. Also, how do you check the color depth?

[Jiri.Matys]

I don't think that's possible since .exr's come out as either 16bit or 32bit. Are you using EXR IO to open the image in PS? Check if the "Mode" (PS > Image > Mode) is set to 32-bit. Also, how do you check the color depth?

I open the image through standard PS open dialog. Image opened in PS has 32bit in headline and I also check it in menu. Then I try exposure dialog in PS to check if real pixel are there.
When I disable color correction in VFB and save the image and open it acheck it in PS the same way, real 32 pixels are there.
I dont get why it is cropped out with VFB corrections on when everything is ok in VFB. But after save not.

[seandunderdale]

If you turn off "save in image" in the display correction, I find that gives me a correct working 32bit exr in PS

[Jiri.Matys]

If you turn off "save in image" in the display correction, I find that gives me a correct working 32bit exr in PS

I dont have this option enabled unfortunatelly.

[kosso_olli]

Can you show a screenshot how your layer setup in VFB looks like?

[piotrus3333]

It doesnt matter what I do, saved image is still 8bit. Please can someone help me? Thank you a lot.

8bit? you mean it's 16/32 but non HDR, right?

can you share exr like that?

[Jiri.Matys]

Can you show a screenshot how your layer setup in VFB looks like?

It doesnt matter. Even if I delete all layers in stack leaved only the default ones behaviour is the same Really dont know what is going on.

[Jiri.Matys]

8bit? you mean it's 16/32 but non HDR, right?

can you share exr like that?

Yes, that is right. It is 32bit image, but cutout to 0-255. Sure, tomorrow I will send one, no problem. I really dont know how to fix this. This behaviour is really odd.
Is it some settings in max/vray? Should I reinstall something? Or some setting in windows? I think I tried everything so now I really dost know.

[Jiri.Matys]

8bit? you mean it's 16/32 but non HDR, right?

can you share exr like that?

Hey, you can download this exr here:
https://drive.google.com/file/d/1Bt8...ew?usp=sharing

Let me know what you see.