Turn a 2D Image Into a 3D Building in Blender in 1 Minute!

Let's turn a 2D image into a 3D building. Import an image as plane. Add loop cuts to isolate the primary areas of your image plane. Select those areas and extrude them out accordingly. Isolate some more of the inner detail and again extrude them out. Next, isolate the window areas using more loop cuts. With the window selected, create a new material. Assign it. Set it to the original building texture. Duplicate it. Then increase the metallic and decrease the roughness to create reflective windows. Import a reference image of an air vent and use it to model one. Then place this air vent in the places shown on your building texture. For any stretched textures, you can select them, reproject them and align them with somewhere that makes sense. You can add further detail if you want such as wires and pipes. Depends on how detailed you want to go. Duplicate your items and rotate them to form a building shape. Make variations, keep it low poly and you can make an entire city.