While I absolutely agree, that descriptions should be experienced through the narrator's / protagonist's eyes in terms of personal involvement, I oftentimes find myself puzzled in describing the basic shapes of objects.
There's spheres, toruses, cylinders, cones, cubes, cuboids, pyramids, cylinders, prisms. But for me that all sounds too mathematical and sometimes doesn't even describe the shape at all.
I wonder if someone has come up with technical descriptions of objects (esp. in sci-fi) that makes it easy to make the object become visible in the reader's mind. I.e. how would one describe the space station Babylon 5, a plain and simple screwdriver or a hammer.
I know this sounds like a simple question and 3D shapes seem to be part of the answer, but something eludes me. Maybe you have an idea. Thanks so much!