i ve found a strange difference when saving to VRIMG and EXR (in VFB rollout)
We have a scene with a logo on the black background.
Just for the sake of it, i ve put a black background in the environment slot as a black texture.
Saving to VRIMG is perfect, when opened in PS, is comes with regular gamma and showing the black background.
Saving to EXR 32bit from the same rollout, not only chops off the black color and makes it transparent, but also the rest of the image is double gamma!
Is ther any rule of thumb to prevent this happening when saving to 32 bit EXR from VFB rollout???
when view the rendered EXR in material editor, through the vrayHDRI loader, it appears fine, but the material preview itself appears with alpha and wrong gamma (as per attached image)
I saved it as 32bit EXR.
Also the lens effects appear strange.
In PS i use proEXR plugin and it basically does the same thing as u can see in the material editor preview
Part of the problem is that the lens effects do not change the alpha, they only work on the RGB channel - something that we probably need to address at some point.
The other part of the problem is that the VFB shows the image with sRGB color correction whereas the Bitmap viewer in 3ds Max uses gamma 2.2; the two are very very similar except for very dark parts of the image, like in your case. If you duplicate the VFB image to a 3ds Max bitmap, do you get the same issue?
