Hello and some UI questions

Hi there, thanks to ClaudeCode I’m happily building some nice color processing plugins for PS, merging channel mixer math with selective color math. Unfortunately, despite trying every trick I can find, we have not been able to enable live UI-slider updates to the background image. It seems there’s a hard UXP block on never updating (in this case a 3D LUT layer) until mouse up. Has anyone successfully worked around that? Is the solution to have an expanded side panel with a proxy preview/downsampled image? Curious what approaches are taken to get some semblance of real-time slider feel. Otherwise my plugin is forever stuck with clicks and arrow stepping.

I may have answered my own question. Turns out the redrawdocument is the trick. Not as speedy as I’d like to have it, but closest I’ve come to live slider with image feedback.