Opening old Octane scene - exposure issues

[dotcommer]

Hey everyone, I remember reading a post a long time ago when Octane made the jump from v2 to v3, and people were opening scenes made in older versions of Octane in newer versions and finding the renders to be way brighter than normal. I think there was a fix to this when opening older scenes, and I can't remember what to do to resolve that. I bought a few interior scenes and hitting render, they're coming out way over exposed with blown-out highlights, so I think these were created in an older version of Octane. Anyone remember what the process was to resolve this, or "update" the scene to work properly? Thanks!

[bepeg4d]

Hi dotcommer,
please, check the "Surface brightness" option in all your emitters, and if you have medium nodes, untick the "invert absorption" option in all the Absorption nodes.
Let me know if this is not enough.
Happy rendering,
ciao beppe

[dotcommer]

Thanks Bepeg, that helped, but its very cumbersome if there are a lot of emissive materials and lights. Is there no automated way to correct a scene for the differences in how lighting was handled from older versions of Octane to newer ones?

[aoktar]

Thanks Bepeg, that helped, but its very cumbersome if there are a lot of emissive materials and lights. Is there no automated way to correct a scene for the differences in how lighting was handled from older versions of Octane to newer ones?

It has some convertion for older scenes but it's not covering some changes. It's propably one of those.

[dotcommer]

The biggest issue I was having is that the lights in the scene (octane lights specifically) were blindingly blown out. I had to bring down both the power, and check some things like normalize and surface brightness for those lights. Seems like maybe the conversion should address those issues as well.