BCC Primatte Studio Question

Richard-Bril wrote on 5/18/2021, 4:31 PM

When using BCC's Primatte Studio (for Chroma Key) in the Custom Compositing Mode (where it applies the effect to the whole video track to utilize the Light Wrap features), is there a way to have different settings for each of the different video clips (on the same video track) that might need a little tweak to get the right chroma key setting for that particular clip? As I understand it, the Primatte Studio applies its settings to all video clips on a track (and I don't even know what "clip" it's looking at you click on "Auto Analyze"), unlike when you might apply an effect (in this case a chroma key effect) to a clip and then each clip can be tweaked accordingly (allowing multiple different chroma key "settings" on a single video track. My limited brain functionality seems to only consider 2 ways to use Primatte Studio for multiple green screen clips on the same video track:

1) Use keyframes in the BCC Primatte Studio plugin itself (which seems cumbersome and leaves me wondering how the "Take Sample" feature on the "Clean FG/BG Noise" would work if there will be many varying colors from clip to clip (at some point the "sample(s)" taken will not work for other clips on the same track.

2) Put each video clip on its own video track and apply Primatte Studio to each track individually and tweak each track accordingly. However, since a single instance of BCC Primatte Studio is already pretty taxing on the system and causes choppy playback, each new instance of the plugin (even if there are no video clips its doing its magic on) slows down the system that much more...so I use a video Mute envelope to mute the video track that finished playing its clip(s). Again, this seems like a bit of a cumbersome work-around as (in this case of a project I'm working on) I have 11 different video clips that need slightly different chroma key settings.

I'm probably missing something simple to make this come together in a more seamless way, so if you have any ideas, I'd really appreciate hearing!

Thank you,
Richard

Comments

Former user wrote on 5/18/2021, 6:05 PM

Hi, i'm sorry i can't be much help but if it's in Custom Compositing Mode then it's affecting the whole track & you've no choice, i've wanted a similar thing but ended up creating lots of tracks & parent/childing them to a main track or select those tracks n right click 'Group Selected Tracks' so i can hide them as one layer,

Just out of curiosity what are the specs of your PC,

Richard-Bril wrote on 5/24/2021, 12:30 AM

Sorry for the late reply...and thank you for your answer! I ended up just creating a new video track for each video clip, applying Primatte Studio to each one individually (in Custom Compositing Mode) and using the Video Mute envelope to mute the track(s) once the video clip finished playing (otherwise rendering would have taken days...since it reads each instance of Primatte Studio as if it is active, even if there is no video track being processed by it).

My computer specs are as follows:

AMD Ryzen 9 3900X 12-Core
64GB of RAM
RTX 2080Ti

Best Regards

Hilly wrote on 7/22/2024, 10:36 AM

I am looking at a similar situation, although maybe a little larger. I have just upgraded to the new Vegas Pro 21 and have shot video on my A7SIII on the weekend that involves 79 separate video clips (shot in HD, not 4K) and over 600 photos (1/2 RAW and 1/2 JPEG), all with greenscreen. I am new to Primatte but so far it looks pretty good and the videos I have keyed individually have come out pretty good. I am wondering how effective applying Primatte to the track might work - I'm guessing maybe not good but I really don't know.

Anyway, here's to more sleepless nights and even less suntans!

My rig is an

AMD Ryzen 9 5950X 16 core

64 GIG Dimm 4 RAM

RTX 3080

Samsung Pro 2TB SSD with 1/2 TB Samsung Pro backup

Gid wrote on 7/22/2024, 10:53 AM

@Hilly Hi, the good thing about Primatte is that you can fine tune the matte by taking colours away using the clean FG or BG, if you added Primatte to the track it would be hard to do this. you'd have to try it out, results will depend on how consistent your green screen/lighting is.

But if Primatte is added as a Custom composite to the track you have the options to use the background image as the edge cleaner colour. again this would be one fx affecting all the track's events/clips..

I think I would add Primatte to one of your events, create a preset so the chosen colour & other matte cleaning options are suitable for your greenscreen, then Select All & apply that preset, you've then got the option to tweak each event.