> [!abstract] Summary > **Mesh Edit LOP** — author USD `Mesh` attributes (subdivision scheme, interpolation, orientation, etc.) directly on a stage prim, without touching the source geometry. Primarily used to **enable Catmull-Clark subdivision** at render time on selected meshes. --- # Mesh Edit Node - Used to **author Catmull-Clark subdivision** on a USD `Mesh` prim from inside the LOP graph. - Can also flip orientation, change interpolation, or override per-face vs per-vertex shading without modifying the source mesh. ## Typical Use 1. Drop a **Mesh Edit** after an asset reference. 2. Target the mesh prim(s) via **Primitives**. 3. Set **Subdivision Scheme** to `Catmull-Clark` (or `Loop`, `Bilinear`, `None`). 4. The mesh now renders subdivided at render time — RenderMan and Karma honour this attribute via the USD schema. --- # Related Render-Geometry Settings For controlling **dicing**, **displacement bounds**, and other render-time geometry settings, pair with [[SOLARIS Geometry settings|SOLARIS Geometry Settings]] (`RenderGeometrySettings`). --- # 🔗 Related - [[../SOLARIS MOC|SOLARIS MOC]]. - [[SOLARIS Geometry settings|SOLARIS Geometry Settings]] — render-side dicing & displacement bounds. - [[SOLARIS SOP Modify|SOP Modify]] — alternative when full SOP-level editing is needed. - [[../../KARMA/Notes/KARMA Displacement|KARMA Displacement]] — Karma-side displacement tuning.