White Point vs Environmental Tint ?

lou_harper

I believe Environmental Tint (Environment under Render Settings) is new. Is it different from White Point (Tone Mapping) in any practical way?

Hylas

Environmental Tint will only tint your HDRI (or sun/sky dome). White Point will tint your entire image after all the lighting has been applied.

Let's say your scene features a grey, low-key HDRI and a bright, white emissive.

If you adjust Environmental Tint the HDRI will take on a hue but the emissive will remain white.

If you adjust White Point the entire scene will take on a hue, including the emissive.

prixat

The photographic use of White Point adjustment is to remove a tint.

Here's a common usage, changing the colourspace from REC709 to ACEScg introduces a colour shift to the red. (Where the fault is, in the Iray implementation of ACES, is locked away inside the renderer)

Adjusting the White Point towards Red is one way to try to get the proper colours back.

lou_harper

Hylas said:

Environmental Tint will only tint your HDRI (or sun/sky dome). White Point will tint your entire image after all the lighting has been applied.

Let's say your scene features a grey, low-key HDRI and a bright, white emissive.

If you adjust Environmental Tint the HDRI will take on a hue but the emissive will remain white.

If you adjust White Point the entire scene will take on a hue, including the emissive.

Interesting. Thank you!