Shadow catcher not dark enough

[javierluisbravo]

My friends,

why shadow catcher is not so dark?
is there a way to make it darker?

Here attached example comparison between vray, octane and clarisse.

[paride4331]

Hi javierluisbravo,
are you sure your linear workflow is set correctly?
Regards
Paride

[javierluisbravo]

yes my friend...

i worked in LWF since ages with vray... For sure i am kind of new to octane.. as i started to use it i think 2 years ago..

i had no trouble with my LWF in octane since this 2020.1 version that the defaults changed and i want to start moving from linear srgb to linear ACEScg.

Thanks!

[javierluisbravo]

take a look to this...

for me is a clear issue in the contribution of the alpha channel of the shadow catcher...

[javierluisbravo]

i solved this one!

[frankmci]

i solved this one!

Please share how you solved it, in case others run into the same issue.

[javierluisbravo]

Totally!

I used a Octane sun below the horizon to kill the shadows and i mapped it with and HDRI (gamma 1 for sure) in the texture... and i changed the dropdown from daylight to texture...
and the SIBL is working perfect now compared with Redshift and Vray.

Anyway there are gamma issues in the octane 2020.1 regarding the defaults... so i used gamma hack off and nonlinear off too.

[javierluisbravo]

Here comparison...

vray and octane working very close now

The best version is the AcesCG from clarisse .
it feels more natural and more real because all is AcesCG color managed...