Z max depth question

[thanulee]

Hi, according to manual

"Z-DEPTH MAX: It only becomes active when "Z-depth" type is selected. Determines the maximum depth of Z-depth info channel type as shown in the picture below."

My question is, does this play any role when u render exr 16 bit linear/linear?
In v4 it doesnt, but in 2019 seems to normalise the image. Is that the case?

thanks

[aoktar]

It's a valid option if you use tonemapped render buffers. Saving format and this have not any relationship

[thanulee]

Thanks. I get different results when not tonemapped.

The left image is max 30 and the right is max 5. Both EXR linear. The right one seems like the information of the pass is missing. While the dynamic range is there, the pass looks "normalised".
So is this correct? Linear EXR should ignore the max depth ?

thanks

[aoktar]

Float (Tonemapped), 8-bit (Deprecated) buffer - > clamped colors(between 0-1 value)
Float (Linear) -> nonclamping on colors, color range is infinite

MaxZ value is for tonemapped buffers, it normalizes the colors between 0-maxZ values.
Also as I can remember that just 32bit exr can hold the values without clamping the colors.

[thanulee]

Thanks buddy! Ye im in 16bit so i guess thats the reason here!