Engineering: CAD has always been an imperative tool in industry. For illustration in automobile design, CAD could be utilized to model a car. Although with the advent of computer animation such model could now be changed into a full 3-D rendering. Along with this benefit, automobile makers could animate their moving parts and test them to ensure these parts don't interfere along with anything else. This power assists car makers many by ensuring such the model of car will have no defects.