Position and color keyer with sphere or cube falloff in position, HSV, or CIE-LCH space, writing a soft matte to a chosen output channel.
Swiss Keys builds an alpha matte from a selected point in position or color space. Pick an input layer, a type (position, color, or CIE-LCH), and a shape (sphere or cube), then set the selection and blackpoint/whitepoint range that drive the falloff.
Use it when you need a soft key around a sampled color or position value instead of a standard chroma pull. Optional log transform on the CIE-LCH path, per-axis x/y/z scales on the sphere, invert, and gamma shape the matte before it is copied to the output channel you choose.
In the node graph it shuffles the input layer, converts into the selected space, evaluates sphere or cube distance against the selection with smoothstep limits, then writes the resulting alpha onto the original stream.