3D Virtual Prototype images can be created from sketches, photos, sample drawing, customer-specified dimensions or CAD formats. CAD systems depict data exactly and generate usable images, but the images generally look very computer generated and obviously not “real”. The environments the product can be placed in are often less than stellar in most CAD programs. To make the image photorealistic, the rendering program has to mathematically calculate real world governing physical equations of light transport. This aspect is often not in the capabilities of the product designer, but needs to be capitalized on visually.