vector usd_getbbox_min(<stage>stage, string primpath, string purpose)
Computes the minimum of the bounding box for the geometry.
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 primitive’s purpose for which to return the bounding box (e.g., “render”).
The minimum point of the primitive’s bounding box.
// Get the sphere's bounding box. vector min = usd_getbbox_min(0, "/src/sphere", "render");