# Is it possible to create an effect to operate on closed surface objects?

**URL:** <https://discourse.slicer.org/t/is-it-possible-to-create-an-effect-to-operate-on-closed-surface-objects/41122>\
**Category:** Support\
**Created:** [January 17, 2025, 8:10am UTC](https://discourse.slicer.org/t/is-it-possible-to-create-an-effect-to-operate-on-closed-surface-objects/41122 "2025-01-17T08:10:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![coenwang01](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/coenwang01/32/78959_2.png) [@coenwang01](https://discourse.slicer.org/u/coenwang01)\
**Post date:** [January 17, 2025, 8:10am UTC](https://discourse.slicer.org/t/is-it-possible-to-create-an-effect-to-operate-on-closed-surface-objects/41122/1 "2025-01-17T08:10:57Z")

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So far, all existing effects seem to be able to operate only on binary labelmap objects. Is it possible to create an effect to operate directly on closed surface objects? If so, could give me some suggestions? I’d be very grateful.

 ![1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/b/9b7d586e3f98672d777c74b9ed8902d3fc3456f7.jpeg)