My methods that seem to work ok, 2 options
There are two main options i have found, to grade OM-log-400 in Divinchi Resolve.
1. Color management or alternately 2. In Manual (better as you can turn off/on LUT)
1.Select in "project settings" "color science" select color manged" select "output color space"= rec709 (standard stuff). Under "look up tables", select OM-log-400 LUT. (this needs to be pre-loaded into Divinchi) Make sure it's the "output table" you have selected (NOT input table). This enables you to grade before the LUT . With this option Divinchi applies the LUT for you at the end.
2. Manual ( all in your own node tree) same as above in outcome but you do the work.
In "project settings" select "color science" Davinchi YRGB".
Select timeline color space rec709 or Davinchi WG/intermediate. (DWG is better for some color tools) Select "output color space" = Rec709 Gamma 2.4. Do not select any LUT's in the look up tables section.
Now add the OM-log-400 LUT in your node tree at the end. Grade before the LUT, for best results.
Note the full color space gamit (range of CIE chromaticity) is preserved. To prove this, (experiment) set "output" in project settings to Divinchi wide. Save, then view CIE chromaticity viewer, you will see an huge color gamit over shooting rec709 boundary markers, reset "output" to rec709 and you can see the CIE chromaticity viewer indicating the gamit inside the 709 color space boundary markers. Therefore we know the full color gamit is available and is only suppressed to rec709 at the end. Please comment if you add more to this
