Hi Mik,
I have been using the “Markups perspective projection on the imager plane” in the DRR Image Computation module and realized that it may be producing erroneous results. My use case involves placing points on spinal anatomic landmarks, then observing their position in the resulting DRR. The projected points in the example below appear in a different location than I would expect:
The red projected points do not contact the anatomic structures on which the original points are positioned. What could be causing this?