# How can I save a 3D scene as an mrc file

**URL:** <https://discourse.vtk.org/t/how-can-i-save-a-3d-scene-as-an-mrc-file/12704>\
**Category:** Development\
**Tags:** python\
**Created:** [November 14, 2023, 11:40am UTC](https://discourse.vtk.org/t/how-can-i-save-a-3d-scene-as-an-mrc-file/12704 "2023-11-14T11:40:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![v4Miguel](https://discourse.vtk.org/user_avatar/discourse.vtk.org/v4miguel/32/7440_2.png) [@v4Miguel](https://discourse.vtk.org/u/v4Miguel)\
**Post date:** [November 14, 2023, 11:40am UTC](https://discourse.vtk.org/t/how-can-i-save-a-3d-scene-as-an-mrc-file/12704/1 "2023-11-14T11:40:52Z")

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Hello.  
I am creating a window using vtk that allows moving the density map of a membrane protein and establishing it on an axis, I want to know how I can save the protein once the user has placed it in the correct place.

Thanks!!.

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**Author:** ![ben.boeckel](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/ea5d25/32.png) [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Post date:** [November 17, 2023, 4:22am UTC](https://discourse.vtk.org/t/how-can-i-save-a-3d-scene-as-an-mrc-file/12704/2 "2023-11-17T04:22:27Z")

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I only see an `.mrc` reader, not a writer, in VTK today.