I want to get boundaries that change with the perspective

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1

I want to get boundaries that change with the perspective.
I can not find it, can you help me.

企业微信截图_20210818111742
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2

I want to get boundaries of actor that change with the perspective.
I use it before,but i forget.
I try vtkOutlineFilter, but it not my want.

3

Maybe you’re looking for vtkPolyDataSilhouette?

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