We can create different types of render; they can be realistic or imaginary.

A realistic image could be an architectural interior (like the ones shown below) that looks like a photograph, an image of a product design, or a car.

On the other hand, we can create a non-realistic image, such as an outline type diagram or an animated 3D style image and/or with a traditional 2D look. Technically, we can visualize anything we can imagine.