Hi ! I just bought Vegas Pro 22 today, and i tried the Chroma Keyer, and it have some issues with the blue color when removing green, i know this is normal, so i want to create my own effect that you add next to the Chroma Keyer to be able to get the original frame of the track, the edited frame by the parent effect (the Chroma Keyer for example), and to use the output of the Chroma Keyer as a mask since i only want transparency, i think i could use the output to replace existing pixels of the original frame with the transparent ones without affecting the colors .

But, i tried to find documentation, but can't find any real documentation, and same for open source effects, didn't saw any effect that actually edit frames .

So, i'm looking for a way to .../ (With the FX set as Chroma Keyer -> My Effect .)

1. Get the original frames (talking about image data, the actual pixels) untouched by the Chroma Keyer (or parent effect) .
2. Get the frames edited by the Chroma Keyer (or parent effect) .
3. And finally, to apply those frames like my effect was, well, an effect .

So, do you think you could help me please ? If possible, i would like to have a very simple template of effect that take the original frames and the ones edited by the parent effects and that just output them back, i will do the rest myself, just, really can't find anything about editing the actual pixels .

The template can be in VB.NET or C#, just use the language that you prefer .

Also, please note that even if i mainly want something to fix the Chroma Keyer, i actually want to do other effects, and i think that publishing the template on GitHub could be a good idea for new people who want to make effects or addons .

Thank you very much in advance for your help, and see you later !