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Rhino 3dm Loader ​

When you import a model exported from Rhino, the file may contain extra geometry that isn't part of your actual product — such as line meshes, point meshes, or construction helpers. These elements can clutter the viewport and interfere with how your model looks in the viewer.

The Rhino 3dm Loader plugin gives you a set of checkboxes to control what gets imported and what gets hidden, so you only see the geometry you need.

Where to Find It ​

This section is located on the right panel, inside the PluginsPlugins tab, in the Rhino 3dm Loader section. This section is always visible, but its settings are used when working with .3dm files imported from Rhino.

Settings ​

importMaterials
Checkbox — imports materials defined in the Rhino file. Enabled by default
forceLayerMaterials
Checkbox — forces materials to follow Rhino layer assignments instead of per-object materials. Enabled by default
replaceWithInstancedMesh
Checkbox — replaces duplicate geometry with instanced meshes for better performance. Disabled by default
hideLineMesh
Checkbox — hides line meshes (curves, edges, wireframes) that may be exported from Rhino. Enable this to remove unwanted lines from the viewport. Enabled by default
hidePointMesh
Checkbox — hides point meshes (control points, construction dots) that may be present in the Rhino file. Enable this to keep the viewport clean. Enabled by default
loadUserDataStrings
Checkbox — loads custom user data strings attached to objects in the Rhino file. Enabled by default

Clean imports

If you see unexpected lines or dots around your model after importing a .3dm file, check that hideLineMesh and hidePointMesh are enabled. This is the most common fix for cluttered Rhino imports.