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I have an object at (0, 41, 0). I want to delete the back half so the object looks the same from the camera at (0, 0, 0), but will cost less to 3D print.

Perhaps I need to select and then delete vertices that are “behind”? But I do not know if this is the best approach, or how to do it.

I am happy to do this in Python, but I do not know where to start from. Any suggestions?

The Blend file is available here:

Here are three views (top, right, front) of an example object: Viewpoint: Top Viewpoint: Right Viewpoint: Front

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  • $\begingroup$ Would you agree with a solution based on GeometryNodes ? If so, Could you provide your Blender file using blend-exchange.com ? $\endgroup$
    – StefLAncien
    Commented 2 hours ago
  • $\begingroup$ Hi. Please don't post essential information like links, file downloads or additional details in the comments section where it can be easily missed. Instead edit them into your original post with the Edit button above. Comments are transitory by nature, are hard to index or search for, and may be erased at any moment. $\endgroup$
    – Duarte Farrajota Ramos ♦
    Commented 1 hour ago
  • $\begingroup$ @StefLAncien Yes to Geometry Nodes. I have included a link to the Blend file in the original post. Thanks. $\endgroup$
    – Paul St George
    Commented 49 mins ago

1 Answer 1

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Static solution:

  • In edit mode, from the angle you want to look (you can look from the camera view by pressing numpad 0 or clicking the little camera on the right side of the 3d view)
  • Turn "OFF" x-ray and wireframe. Keep solid mode
  • Make a big rectangle with the mouse to select (the back will not be selected)
  • Invert the selection (ctrl+i or menu "Select"->"Invert")
  • Delete
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