How does the shuffle node work?


#1

I have been trying to figure out the shuffle node. Why is there an A/B pipe? I don’t understand the node’s documentation. Any clarification would be greatly appreciated. Also, I specifically want to know how to ‘force’ an alpha when there’s no alpha in the source footage. Thanks


#2

The shuffle Node is for mixing RGBA channels, you can have only one input (A) and reorder it like BAGR instead of RGBA
or mixing two image’s channels , like take R and G channel from input A, and B and A channels from input B…

For adding an alpha channel, I think you can setup it in the read node, or if you put a shuffle node after the read, if you have access to RGBA channels, then set A channel to 1

I haven’t natron at hand so I can"t do further tests, if you’ve got issue I’ll take a closer look at it !

Happing natronisation !


#3

Thanks for clarifying this sozap!

As for the alpha-channel issue, I already tried setting up the read node to use an alpha, including putting a shuffle node after the read node and setting A channel to 1, but was unsuccessful with both options. Not sure how else to combat this problem…