string usd_variantselection(<stage>stage, string primpath, string variantset)
This function returns the current variant in a given variant set on a given primitive.
When running in the context of a node (such as a wrangle LOP), this argument can be an integer representing the input number (starting at 0) to read the stage from. The integer is equivalent to the string form referencing a particular input, e.g., “opinput:0”.
You can also use this argument to refer to a USD file (e.g., “/path/to/file.usd”), or to another LOP node’s cooked stage using the
op: as the path prefix (e.g., “op:/stage/lop_node”).
The path to the primitive.
The variant set name.
The currently selected variant in a given variant set on a given primitive.
// Get the currently selected variant in the variant set "shapes" on a "shape_shifter" primitive. string selected_variant = usd_variantselection(0, "/geo/shape_shifter", "shapes");