Fresnel Route the Light

The house is dark and the show is about to start. You are the board op, and the overhead lighting rig is a tangle of cable runs waiting to be patched. Route the light — and call the cue. Fresnel is a beam-routing puzzle with a hook you can read in one screenshot: coloured stage lights that MERGE. Each LANTERN throws a gel — red, green or blue. Each MARK on the stage asks for a particular wash. You patch the rig by tapping a node to rotate its cable ports a quarter-turn, lining the runs up so a lantern's beam travels to the mark that needs it. The twist that makes it a puzzle and not a colouring toy is real additive light. Route two colours into the same run and they blend the way stage lights actually do: red + green = amber, red + blue = magenta, green + blue = cyan, all three = white. And a mark wants its wash EXACTLY — under-light it and it stays dark; OVER-light it by patching in a…