A rendering system and method, and a recording medium therefor are provided. The rendering system imports geometry and hierarchy structure information on a three-dimensional (3D) computer-aided design (CAD) model, which is produced in a commercial 3D CAD system, from the 3D CAD system through an interface, performs scene editing necessary for rendering without changing the initially modeled data, and then performs rendering. Accordingly, it is not necessary to correct the geometry data and restore the hierarchy structure information, and rendering can be easily performed in a short time.