{"id":9880,"date":"2023-05-21T15:24:17","date_gmt":"2023-05-21T05:24:17","guid":{"rendered":"https:\/\/eprhino.com\/?p=9880"},"modified":"2025-01-04T14:42:20","modified_gmt":"2025-01-04T03:42:20","slug":"subd","status":"publish","type":"post","link":"https:\/\/eprhino.com\/en\/subd\/","title":{"rendered":"What is SubD in Rhino"},"content":{"rendered":"\t\t
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Great news for Rhino users! SubD capabilities have been added to Rhino. Designers who have been working with soft, organic forms and plugins like T-Spline and Clayoo will be happy to know that they no longer need these plugins. You can now directly design soft forms using Rhino’s SubD feature.<\/p>

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Rhino SubD Vision<\/span><\/h3>

Rhino SubD objects are high-precision surfaces. They can have gaps, sharp or smooth corners, and holes. The focus of Rhino SubD is on fast modeling and editing of complex organic shapes. Unlike mesh-based SubD implementations, Rhino SubD objects are a single, undivided mesh. The Rhino SubD user experience will be the same as the Rhino NURBS and mesh object experience. There will also be new SubD modeling and editing tools based on traditional techniques.<\/span><\/p>

Rhino SubD surfaces are predictable, measurable, and manufacturable.\u00a0<\/sup><\/span>If necessary, they can be converted to high-quality NURBS objects or meshes (quad or triangle). Rhino SubD objects are supported in all Rhino export formats that support mesh and NURBS, including IGES, STEP, OBJ, and STL.<\/p>

SubD Commands:<\/b><\/h3>

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ToSubD command<\/b><\/h3>

The ToSubD command creates a Rhino SubD from a regular mesh or a surface. The input mesh can be triangles, quads, or n-gons. Meshes that are mostly quads work best. Options: Creases option = Yes\/No determines how to handle the edges of the input mesh. If Creases = No, all internal mesh edges become smooth SubD edges. If Creases = Yes, internal mesh edges become creased SubD edges.<\/p>

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SubDivide command<\/b><\/h3>

The SubDivide command works on Rhino SubD and mesh. It introduces one or two levels of subdivision for the input object. When the input object is a mesh, the Creases option is available and works like the SubDFromMesh Creases = Yes\/No option.<\/p>

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ToNurbs command<\/b><\/h3>

The ToNurbs command converts a Rhino SubD object into NURBS patches. It also converts other non-NURBS objects such as circles and extrusions into NURBS objects.<\/p>

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Surface commands in Rhino SubD include:<\/h4>