**Enable**- Activate OpenSubDiv**Scheme**- Select one of the OpenSubdiv subdivision scheme classes, which provides the methods for computing the various sets of weights used to compute new vertices resulting from subdivision.**Catmull-Clark**- A uniform refinement is applied to the Mesh faces. It subdivides the Mesh by the same amount.**Loop**- Subdivision scheme for triangular meshes, where each recursively defined subdivision surface divides into smaller ones.**Bilinear**- Subdivision scheme where the limit surface goes through the existing vertices, resulting in softened edges but no drastic changes in shape.

**Subd Level**- Allows subdivision surface refinement based on Pixarâ€™s OpenSubDiv implementation. Controls the number of times OctaneRender subdivides the original version of the Mesh.**Sharpness**- Controls the Sharpness values for the crease at and around a vertex. Crease sharpness values range from 0 (smooth) to 10 (infinitely sharp).

**Figure 1: OpenSubDiv parameters**