PS is great for organic objects, but I am having a very hard time getting good results for walls. Interstingly, walls would be really simple to model, but the workflow between PS and a 3rd party 3D app is pretty cumbersome.
It would be great if I could help the dense reconstruction in PS by indicating regions that contain a smooth, even, uniformly colored wall (maybe by picking two parallel lines on the wall?).
With such a tool, we could help the reconstruction for cases where there is little pixel information, but easy large-scale information...