Invert Black to White etc pp

[baustellen]

hey folks,
I have a pretty simple but tricky question. Which effect in Resolume helps mit do get a negative of my clip? (black to white, white to black)
I tried "Invert RGB" and it didn't help. Colour Pass with the option "Invert", seems to be something else.
Also googled it with no result.

all the best
a baustelle

[ReggieUnderground]

Invert RGB should produce the result you're looking for. Maybe post a screenshot?

[HerrNieDa]

maybe your source footage isn't really black/white... try to add a levels effect before to get a proper black/white contrast

[baustellen]

Hey boys,
HerrNieDa, you gave me the right hint! Thank you!