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[Closed] Tracking mesh intersection of vertices

Hello, I have a project where I have an irregularly outlined planar editable poly and am trying to loft it downward in the Z axis onto a concave editable poly. Ideally each point of the planar object would project downward until it intersects the geometry of the concave object and terminate translation.

The concave objects are 3d scans, and as such they are often filled with voids and other defects. In this way, I’d like to be able to maintain control of every vertex in the flow of projecting points to set up workarounds for such defects. I will be doing hundreds of these projections using the same exact irregularly shaped planar object, but different concave objects, so I will create a UI to facilitate the process.

I’ve done a fair amount of scripting, but am trying to broaden my skills, so this will also be a learning procedure for me. I don’t need someone to completely spell out how to do it, but if you could lead me in the right direction I’d be very grateful.

Thanks a lot for any help.