The Study Of The Material Function In 3D Packaging CAD System

According to the present condition of the packaging CAD, The paper analyzes necessity and possibility of developing material module of 3D packaging CAD , provides the viable method on theory, sums up experiential model and puts forward concrete method. First, the paper analyzes how to establish the 3D model for material function studying by using computer graphics technology and reasonable date-construction. Second, according to different characteristics of the different material, the material is divided into the standard material and non-standard material. The paper points out that different material must be imitated through different methods. In the paper, the standard material is imitated by using illumination model, and the non-standard material is imitated by using texture and illumination model. Last, Using the realistic image synthesis technique, material function and the rendering technique, I realize the scene modeling, projection transformation, visible-surface detection, illumination model and surface rendering in this paper. By this, packaging CAD system can build model with high reality and produce strong inspiring impression and do simulation with reality. For doing all of these, ourpurpose is using computer graphics to help us to design packaging products and propagandize packaging commodity.