Hi!

I'm trying to replicate a Glow node in Nuke but I can't find the same thing in COPs. I tried the Blur node but it blur's everything instead of just the bright highlights.

-Olivier

There's a dedicated COP for that and "Glow" is its name. Same as in Nuke. Have you tried it?

Arg... I've got Houdini 19. I think its a new v20 node. Ok, thanks for the info!

-Olivier

I see. Yes, it's a new Copernicus (COP) node introduced in 20.5.

Glow is basically a blur applied on a range of bright pixels. You can reproduce it with COP2s by isolating high pixel values, desaturating them slightly, blurring them, ramping up brightness, and comping the result back with the original plate (Screen or Add).

The attached image demonstrates a basic glow setup in COP2.