simulation for tilted detector matlab function instead of own code

I have written a simulation for a detector which is tilted by a specific angle and a non-tilted detector. X-Rays coming from a source, intersecting with a cube as an object finally intersect with the detectors and two images are formed (one from the even detector and one from the tilted detector). Now I wanted to use it for validation for another project, but something is off. So I wanted to ask, if there is any function on Matlab, which I overlooked, but does essentially the same?

I have searched many times and with many keywords, but no luck.