The Switch component is used as a curve selector – it outputs one of its Source inputs depending on the value of the Selector input. This is a curve component, it can be located in the Curve Ops category on the Components Bar.
Specifies which of the source inputs goes to the output. For example, if the Selector value is 3 then the curve supplied by the Source 3 input will be sent to the output. When a map component is connected to this input, the Source number is determined separately for different image areas by the HDR brightness level of the image supplied by that component. The number is calculated as the brightness level rounded to the nearest integer: the brightness level of 0 to 0.5 corresponds to the Source of 1, the level of 0.5 to 1.5 to the second Source, 1.5 to 2.5 to the third item etc. Out-of-range values are clipped, which corresponds to the last item of the list.
Source 1, Source 2, ... Source 12: Curve Inputs
These inputs provide the source curves one of which will be sent to the component's output.
