Greenscreen Workflow Notes
I just finished an iteration of my greenscreen workflow. Iām documenting the steps so I can see how to streamline the work.
1. Actors shot on greenscreen with side by side GoPro Hero4 rig.
2. Pre-Comp1 Footage was placed in an 8000x8000 After Effects composition. Footage was rotated 90 degrees, denoise with Reduce Noise v4, and manually placed in an over-under configuration. (this was probably a mistake as I donāt have any tools to deal with over-under)
3. Pre-Comp2 Pre-comp1 was run through Keylight process producing an over-under cutout of the actors.
4. Background plate was captured from Unreal Engine using Kite and Lightning plugin.
5. Pre-Comp2 and background plate were placed in After Effects composition. Hereās where the problem with over-under came in. I need to adjust the position of the actor plate in 360 space, but also 3D space. I have good tool (Dashwood Stereo) to adjust stereo, and decent tool to adjust location in sphere (Mettle SkyBox) but not to do both. Skybox has only one stereo tool and it is to take a 2D image, create a stereo copy and move the two images along the 360 sphere. I need a tool that knows stereo over-under and can move the 2 images in the 3D sphere while keeping the stereo.
6. Color using Lumetri.
7. Output as MP4, h264 for upload to Youtube.
8. Metadata tag using Youtube app.
I also took a frame of the 360 and created a tight crop and created an anaglyph using Stereo Photo Maker. I think this is important to have aĀ āgatewayā image to draw people to the VR on Youtube. Iāll write about this more, the VR ecosystems seem so closed to me right now.
Improvement Areas
Working in stereo is tough. After Effects is really not setup to do this, and after spending several months with Mettle Skybox it doesnāt give me the tools I need. Dashwood Stereo tools are good, but Mac only and Iām moving off that boat! Iāve ordered BlackMagic Fusion Studio in the hopes that it will address some of these issue.
So that is it. When I write it down it seems somewhat simple, but this took pretty much all weekend to put together, and I would say it is still barely presentable, but I believe in fast iteration as the key to progress.












