# Compare 2 models

**URL:** <https://discourse.slicer.org/t/compare-2-models/44014>\
**Category:** Support\
**Tags:** views\
**Created:** [August 7, 2025, 9:02pm UTC](https://discourse.slicer.org/t/compare-2-models/44014 "2025-08-07T21:02:09Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![michaelli](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/michaelli/32/67910_2.png) [@michaelli](https://discourse.slicer.org/u/michaelli)\
**Post date:** [August 7, 2025, 9:02pm UTC](https://discourse.slicer.org/t/compare-2-models/44014/1 "2025-08-07T21:02:09Z")

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I want to compare two models in two 3D views, so that I can rotate the camera independently for each 3D view. But all the models show in all views, how can I load the first model into the first 3d view window and the second model into the second 3d view?

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [August 7, 2025, 9:21pm UTC](https://discourse.slicer.org/t/compare-2-models/44014/2 "2025-08-07T21:21:44Z")

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1. Switch to Dual 3D layout.
2. Turn off visibility of all models in Data module
3. Drag one 3D model object from the Data module and drop into 3D viewer #1
4. Then the repeat the same for the second 3D model and drop onto viewer #2

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [August 7, 2025, 9:27pm UTC](https://discourse.slicer.org/t/compare-2-models/44014/3 "2025-08-07T21:27:11Z")

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You can also turn on linking in the 3D view if you want.

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**Author:** ![michaelli](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/michaelli/32/67910_2.png) [@michaelli](https://discourse.slicer.org/u/michaelli)\
**Post date:** [August 8, 2025, 2:05am UTC](https://discourse.slicer.org/t/compare-2-models/44014/4 "2025-08-08T02:05:59Z")

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Thank you, @muratmaga and @pieper . Dual 3D layout and dragging works. I also want to rotate the two models and save them to mp4. I first linked the two views, then use “Screen Capture” module and “3D rotation”, but only the model in the first view is rotating. Is there a way to let the two models rotate simultaneously?

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [August 8, 2025, 2:14am UTC](https://discourse.slicer.org/t/compare-2-models/44014/5 "2025-08-08T02:14:46Z")

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You can sync the cameras as @pieper mentioned above. However, if their orientation is not similar, that might be challenging. You might have to create a centering transform.

M