Computer graphics has become one of the important method to display information and has been applied in many applications such as CAD, medical image processing, computer animation, multimedia and virtual reality. These popular applications rely on the low-cost and real-time processing of 3D graphics which become available due to the breakthrough in the hardware design of 3D graphic engine. In this thesis, we implement a CORDIC-based floating-point processor that can compute a wide variety of arithmetic operations and show how it can be applied to the design of 3D engine.