Q: How to warp 3D model to take into account horizon curvature? I am using USGS Astrogeology data for the Moon's south pole. Here's the same dataset at half resolution: 
"LRO_LOLA_DEM_SPolar875_10m.tif (tif) 278 MB" on this page.
I already have a process for converting the GeoTIFF into a 3D model, but because the GeoTIFF is a map of planet radii, it doesn't include any horizon curvature. This results in the outer extents of it being more than a kilometer above the actual terrain. How should I correct for this? 
QGIS GeoTIFF info: 


A: I ended up using two Simple Deform -> Bend modifiers in Blender to do this. I made empties at the mesh origin to hold position and rotation as input, with a different angle for each.
