Some projectors require red and blue to be warped onto the green image, by setting the background warp resource to Converge Red or Converge Blue, you can have this warp resource alter red or blue only. Placing a second warp on this channel in normal Warp Mode allows all 3 colours to be warped at the same time while preserving the red and blue offsets.
Page edited [d/m/y]: 08/12/2020