CalculationsOptions

An object literal can be constructed with the following properties and passed to Document.calculations. As a type, CalculationsOptions can be used in Typescript development.

const options = {
    source1: {
        document: doc,
        layer: doc.layers[0],
        channel: CalculationsChannel.GRAY
        invert: true
    },
    source2: {
        document: doc,
        layer: CalculationsLayer.MERGED,
        channel: doc.channels[2]
    },
    blending: CalculationsBlendMode.DARKEN,
    opacity: 50,
    result: CalculationsResult.NEWCHANNEL
};
await require('photoshop').app.activeDocument.calculations(options);