3D keyer 4 inputs 17.4.2 (rev)

Why does the 3D Keyer effect node have four inputs on the Color page? Where is the documentation?

All Colour Page Corrector nodes have two inputs. Foreground & Key.
User Manual is available from the Help Menu.

Sorry, i wasn't clear. there are 4 inputs. 2 picture 2 matte

Post a picture of your node tree. Something may be obvious.

Here is the node tree. All of the Resolve FX Key effects have the same behavior.

The 3d keyer node has no number or icons in the lower section. Looks like some weird display bug or corruption.

It's not a bug as far as I'm aware. It's always done this as long as I've been using Resolve, when you drag an OFX as its own node - rather than onto an existing corrector:



I always figured that the extra two inputs are in case the OFX supports a second RGB and alpha input. For example, if it was a tracking/match move OFX, like Mocha Pro.

If the OFX you're adding doesn't need the second set of inputs, just don't use them.

Yeah, it's described in the manual - page 2954:

Thanks Tom. I was unaware of that method of adding OFX nodes.