I’m a huge UltraGlow user and abuser. Clients love the diffuse highlight effect.
But it’s so slow. Is it GPU accelerated? Can it be?
On a 2019 Mac Pro (12-core, 32 GB Vega Pro II), in DaVinci Resolve, if I throw it on 5K RED footage, I get about 8 fps playback. When combined with BCC+ Ambient Light (another effect I love) I’m down to 4fps, which is not workable in a real time color session with client in the room.
The problem with Glow, at least, is you typically want to put it on last, as you don’t want those highlights contaminated with other color correction, so you can’t really cache it.
Maybe these speeds are acceptable to AE artists who don’t expect real time, but to be able to use Glow in a color session, UltraGlow needs serious retooling to work on the GPU and about a million times faster than it does now, otherwise it will have to go into cold storage.