Led wall with 3 controllers, some animations might be triggered between 2 or 3 screens.
If I don’t use transform animations are stretched between all 3 screens.
As I understand I’m rooting channel 4 so it can overlap graphic between different screens.
Needed end result: 3 screens running background video and animation triggers between them.
I used one channel to composite everything together. This was. in that case a HD 1920x1080 channel, it could also be a 4K channel. Everything is run on this channel and is positioned on it, regardless the tiles. After that, I route the whole channel (all layers) to another channel composited into one layer. This layer is sent to the 6 output channels, as routing a single layer uses much less system performance, than routing a whole channel. The outputs are then scaled with FILL to the portion they need to display.
I have a finished, quite flexible, client to control all this, if you are interested
This is example with 2 screen, but logic is pretty simple, you just need to properly transform/position output layers.
Solved:
PLAY 1-10 route://3-10
PLAY 2-10 route://3-10
MIXER 1-10 FILL 0.5 0 1 1 0
MIXER 2-10 FILL -0.5 0 1 1 0