How to get a view inside a stl model

Hi, guys,
I want to take virtual images inside a STL model. Like I have a head model, and then I want to take a picture of surface inside brain, how can I do that? I am new to vtk, many thanks!!!

Best regards,

You can move the camera inside and make sure backface culling is disabled.

Normally the brain is not hollow, so brain surface meshes are not particularly realistic or interesting to look from inside. Endoscopic views are much more interesting in hollow or fluid-filled structures, such airways, gastrointestinal tract, or vessels. If you want to segment such structures and create fly-through videos then check out 3D Slicer’s Segment Editor and Endoscopy modules.

oh thank you very much! it solve my problem. Backface culling should be disabled or frontface culling on.

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