This Nuke setting is FREAKING up your edges

Demystifying the secrets of premultiplication in Nuke.
Courses coming soon at nodesarentscar... !

[@macprofire]

I prefer to throw in a unpremult-node before the grade, so I‘m sure I didn‘t forget it and spend less time hunting mistakes not needing to comb through every single node ^^

[@schrodinger5091]

Thank you! I really appreciate the educational content on your channel. It's both informative and enjoyable.

[@mohanplays]

Wow , proper explanation of unpremult , premult and merge, never saw any article or video explaining what is really happens under the hood

[@feelinslicey3149]

THIS video is so educational and informative and also entertaining!!!! I am so excited to watch more!!!!!!

[@nillinsky]

great job man, love the speed you explain everything and the details, excited for new vids! subscribed :))

[@mrutyunjaymahanta7775]

Best explanation...thank you 👏👏👍👍

[@joshmethven4710]

Bloody golden

[@ozgurtaparli7504]

This is not a problem or issue as a decent nuke compositor should know to do all colour operations before premult.

[@mzax]

why not just grade before the premult?

[@nodesarentscary]

This is a good option too! If you’re going to be doing a lot of color correction operations, it can be a good idea to do them all before a single premult, but sometimes it’s just more convenient to be able to throw down a grade node wherever you like in the node graph. :)

[@IanZainea1990]

ummm ... always use the unpremult/premult sandwich instead of using the checkbox in the node. easier, more flexible, more obvious, and better if you ever need to send your script to a different artist.