9.1. Built-in Highlighting

Inventor provides built-in selection highlighting with the SoXtRenderArea and with two classes derived from SoGLRenderAction SoGLRenderAction SoGLRenderAction : SoBoxHighlight- RenderAction and SoLineHighlightRenderAction SoLineHighlightRenderAction SoLineHighlightRenderAction . After a scene graph is rendered, the highlight action renders the path for each object in the selection list. The highlight action is provided to the render area by the application, which calls the setGLRenderAction() method.