I see shear tool, on images it moves top of photo relative to bottom, keeping width same.
In photoshop the most useful tool is distort, allowing top to change width relative to bottom, ditto one side relative to other.
Also top and side can be skewed or angled.
sides remain a straight edge.
It is great for undistorting photos back to a perspective view. (the perspective tool is poor by comparison and cant match reality)
I can use distort and get a perspective photo of railings back to an ortho view ! its accurate as well.
Where is 'distort' in Rhino so as to 'distort' the photo to match a 2D viewport plan.