Screen

Screen is the same as the Merge node, only with operation set to screen by default. It layers images together using the screen compositing algorithm: A+B-AB if 0<A<1 and 0<B<1, otherwise max(A,B) . In other words, if A or B is between 0 and 1, the screen algorithm is used, otherwise max is chosen. Screen resembles plus. It can be useful for combining mattes and adding laser beams.

See also Merge.

Step-by-Step Guides

Layering Images Together with the Merge Node