How to build a video wall for VFX. If you've ever wondered how they build those video walls so they can film people without green screens in movies, but with the background projected on screens, this video explains it. They build a video wall with 56 columns, 10 rows high. Each panel has 192 by 192 pixels. It's grouped into 4 sections, with 14 columns and 10 rows in each section. Each section is powered by a separate computer running Unreal Engine. They employ a variety of tips & tricks to get the panels exactly lined up. If there is even a tiny misalignment, the glitch creates visible seams. The firmware color settings have to be exactly the same for all the panels. The panels are often sold differently and any differences are visible when you have cameras pointed at them all day. So they have to be reprogrammed. It takes about 8 people a week to make the whole video wall.
How to build a video wall for VFX! (everything you need to know) - Live Production Mastery
