| *boolean-error-on-invalid-brep?* boolean |
| This global parameter provides the default value for the error-on-invalid-brep? input to the boolean-merge family of primitives. If set to non-nil, we throw an error instead of a warning if the resulting brep does not pass the built-in validation test. If nil, we throw a warning but continue to return the resulting brep. Defaults to t. |