# Rebuild Mesh Normals ##

Rebuild Mesh Normals The **RebuildMeshNormals** command recalculates the face and vertex normals of a mesh by removing existing normals and generating new ones based on the orientation of the mesh faces. This ensures a consistent and accurate normal direction, which is crucial for proper rendering and 3D printing. *** **Key Features** * Removes outdated or incorrect mesh normals. * Rebuilds face and vertex normals to reflect the actual geometry. * Improves mesh compatibility for 3D printing and other applications. *** **Steps to Use** 1. Select the mesh objects for which you want to rebuild normals. 2. Run the **RebuildMeshNormals** command. *** **Applications** This command is particularly useful when working with imported or modified meshes that exhibit shading issues, irregularities in rendering, or problems during 3D printing. By recalculating the normals, you can ensure a smoother and more consistent surface appearance and behavior. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.rhinoartisan.com/commands/mesh/mesh-repair/rebuild-mesh-normals.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.