KinoSLog3 is a post-processing effect for Unity HDRP that applies the S-Log3 gamma curve to rendered frames. It's not a sophisticated way to handle HDR renders (you should use proper industry standards) but makes it possible to grade with a wider dynamic range in an external editing tool without paying an extra cost.

• HDRP applies the ACES tonemapper by default. You should disable it when using a log gamma.
• The bloom effect in the post-processing effect is very prone to introduce banding in dark areas. It'd recommended to use a glow effect with external software instead.