Double Chroma Key -Editing both Green & Blue Screen at same time

shawn-j wrote on 9/1/2018, 2:32 AM

I have a dilemma. I have footage that has both green & blue screen elements. I want to have different images showing behind each colour. Im not sure of the best way to do this?

One way I thought I could do it -If I separately key out the Blue, revealing the image behind the blue and render that -THEN import this new clip and key out the green to reveal the image behind the green. This seemed like a good idea, until the green chroma keying also removed parts of the image that were added behind the blue screen. This also wouldnt be solved by changing the order either -keying green then blue.

Surely there is a way this could be done? Any help appreciated.

Thanks, Shawn

Comments

fr0sty wrote on 9/1/2018, 3:06 AM

Try using masks to crop out the parts of the video that are outside of the corresponding screen they are supposed to show through. If you are using 16, you can motion track the mask if need be. It would have helped for all of your screens to be the same color if you were going to try that approach, though.

Last changed by fr0sty on 9/1/2018, 3:07 AM, changed a total of 1 times.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

shawn-j wrote on 9/1/2018, 4:25 AM

This sounds like a promising idea. Im not an advanced user of Vegas. Could you please give me a bit detail on how I would do this please?

Thanks

 

shawn-j wrote on 9/1/2018, 4:32 AM

Oh, are you talking about manually drawing in points to cut out areas of the clip? This is what I wanted to avoid doing as the camera & action move around a lot. Ive previously spent days doing this kind of thing & it's not fun. I was hoping there'd be an automated way with chroma key or something?