# Digitally Reconstructed Radiograph Using Models Instead of Volumes

**URL:** <https://discourse.slicer.org/t/digitally-reconstructed-radiograph-using-models-instead-of-volumes/3309>\
**Category:** Support\
**Created:** [June 26, 2018, 6:16pm UTC](https://discourse.slicer.org/t/digitally-reconstructed-radiograph-using-models-instead-of-volumes/3309 "2018-06-26T18:16:04Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![phantom\_gen](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@phantom\_gen](https://discourse.slicer.org/u/phantom_gen)\
**Post date:** [November 12, 2024, 11:42am UTC](https://discourse.slicer.org/t/digitally-reconstructed-radiograph-using-models-instead-of-volumes/3309/7 "2024-11-12T11:42:17Z")

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![middeslab_projektion simpel](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/c/1c0f0942399a0c3e194f6df46f270a81d17e161e.png)

Hi Guys! Although this is an older topic I thought I give it a try since I have a similiar question:

The uploaded picture is an orthographic projection of a STL Design I did, which shall mimic a female breast parenchym in Mammography. I created the projection using an orthographic projection script in python.  
So much for the introduction, now here is my problem: I want to use 3D slicer to create a more advanced orthographic projection, like a DRR. I have voxelized the STL file and want every voxel that is filled, to have a certain attenuation A, and all the space inbetween (so all empty voxels) to have a certain attenuation B. Thanks in advance for your help!

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