What would be this: a plane having a zero-alpha channel, with no background and texture.
On a scene rendered as PNG/popVideo, it would appear as a "hole" where placed.

This feature would dramatically simplify the "green screen" post-production, since would not need a color replacement/removal with its intrisic artefacts, and its "filling" with a diferent content in the video editing would be the most accurate.

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Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12