Next Limit Technologies recently released Maxwell 4. Among other new features, it now offers Rhino for Mac Support.
Maxwell | Rhino for Mac offers a brand new integration for Rhino for Mac, allowing you to work within the Rhino interface via a Maxwell toolbar. Also included with this integration is Maxwell Studio – Next Limit sophisticated standalone scene editor. This provides an additional workflow based on the Asset Reference feature, which allows live-linking to assets (.obj, etc) created in Rhino from within Maxwell Studio.
Bundled together in one easy installation package, the plug-in + Studio workflow includes the entire suite of Maxwell tools. For integrated features see the Feature Table.