You can alter display preferences for the 3D View window and other parameters in the GUI. 

  1. Select Edit → Preferences… from the main OpenSim menu bar. 

  2. In the Preferences window that appears, double click on the value of the option you want to change and enter the new value. To save changes to the preferences, click OK.


Option  Name

Default Value


When Applied

Application: Restore Models on StartupOffWhether to keep track of open models, motions and camera views so that they are restored on opening the application.Exit/Re-entry into the application.

Paths: Geometry Search Path

<OpenSim Install Directory>/Geometry

A list of directories separated by a semi-colon that specify where OpenSim should look for geometry files (.vtp, .stl files). When a model is loaded, the directory containing the .osim file is searched for geometry files, as well as a directory with the name "Geometry" that lives underneath it if exists. If a file is not found in these 2 locations, the directories specified in "Geomerty Path" are searched in order. The paths are specified using the Unix format and are absolute (rather than relative).

Instantly, as well as to subsequently loaded models

Paths: Scripts Path<OpenSim Resources Directory>/Code/GUDirectory containing OpenSim GUI scripts. See Scripting for more information.Exit/Re-entry into the application to see the Scripts list updated.
Visualizer: Experimental Marker Radius (mm)10Display size of experimental markersWhen a new data set that contains markers is loaded.
Visualizer: Muscle Display Radius (mm)8Radius of the sphere representing muscle points and cylinders representing muscles in the 3D view windowNext time a model is loaded.

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