can I better understan your question? Is your geometry (a wall?), similar or comparable, to plane, cylinder or cone? What is the format of your geometry (mesh)? and the what the format of shear stress data linked to the wall? Texture? If it is a textured surface you can use unwrapping tools implemented in Cloud Compare OS SW or 3D Reshaper by Hexagon commercial SW.
I don't know if I helped you understanding your problem!