# Generate digitally reconstructed radiograph from 3DCT

**URL:** <https://discourse.slicer.org/t/generate-digitally-reconstructed-radiograph-from-3dct/2010>\
**Category:** Support\
**Created:** [February 2, 2018, 2:56pm UTC](https://discourse.slicer.org/t/generate-digitally-reconstructed-radiograph-from-3dct/2010 "2018-02-02T14:56:19Z")\
**Posts on this page:** 4\
**Page:** 3

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**Author:** ![Mik](https://avatars.discourse-cdn.com/v4/letter/m/958977/32.png) [@Mik](https://discourse.slicer.org/u/Mik)\
**Post date:** [December 10, 2022, 7:49am UTC](https://discourse.slicer.org/t/generate-digitally-reconstructed-radiograph-from-3dct/2010/42 "2022-12-10T07:49:50Z")

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> [@fieldr4](#):
>
> How can I control the Plastimatch parameters `vup` (panel orientation)?

You can’t. The view-up vector is hard-coded. You can transpose image matrix in any external image editor.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [December 10, 2022, 3:08pm UTC](https://discourse.slicer.org/t/generate-digitally-reconstructed-radiograph-from-3dct/2010/43 "2022-12-10T15:08:26Z")

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You can rotate the input volume by 90 degrees by applying a transform.

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**Author:** ![fieldr4](https://avatars.discourse-cdn.com/v4/letter/f/439d5e/32.png) [@fieldr4](https://discourse.slicer.org/u/fieldr4)\
**Post date:** [December 11, 2022, 3:26pm UTC](https://discourse.slicer.org/t/generate-digitally-reconstructed-radiograph-from-3dct/2010/44 "2022-12-11T15:26:37Z")

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Thank you, Mik and Andras.

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**Author:** ![Lucas7](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lucas7/32/82113_2.png) [@Lucas7](https://discourse.slicer.org/u/Lucas7)\
**Post date:** [March 20, 2026, 11:51am UTC](https://discourse.slicer.org/t/generate-digitally-reconstructed-radiograph-from-3dct/2010/45 "2026-03-20T11:51:38Z")

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Hello, thank you for all of this information. I’m trying to generate multiple DRRs for a neural network training set. I want to maximize resolution, make the DRRs look as much like the XR as possible. Speed is not a huge issue for me. I’ve tried the volume rendering module but it doesn’t seem like I can get extremely high resolution. Maybe this is just a limit of DRR. Which method do you think will work best for my purpose?

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