Computer Graphics and Application计算机三维图形学教程.pptVIP

Computer Graphicsand Application Computer Graphics Application Computer Graphics Introduction Basic elements for computer graphics History of computer graphics Computer graphics applications References Tools Introduction What is Computer Graphics ? Some possible definitions: Approaches, Methods, Technics and Tools for virtual world visualization Generating 2D images of a 3D world represented in computer Computer Graphics Questions Graphics Vs. Image ? Computer Graphics Vs. Image Process CG : 3D Models - rendering - images I. P : 2D images - analysis - models(other information, special effects...) Challenges What are the challenges of Computer Graphics ? Photorealistic representation of the world Real-time representation User interaction Physical-based simulation of the world Object characterization / recognition ...... Challenges Photorealistic representation of the scene Challenges User interaction Challenges Object characterization / recognition Computer Graphics Impacts CG gives impacts on many fields Industry, entertainment, daily life...... CG also gets impacts from other science fields geometry : models, analytical, topology, discrete as a support technic for other research fields Physics, medicine... arts ...... Computer Graphics Introduction Basic elements of computer graphics History of computer graphics Computer graphics applications References Tools Basic Elements of Computer Graphics Modeling construct the 3D model of the scene Rendering Render the 3D model, compute the color of each pixel. The color is related with lighting, environment, object material and so on. Animation The Graphics Process Modeling How to represent objects How to represent objects How to represent objects Modeling How can we get the 3D models of objects 3D scanner Modeling tools (3DS Max, Maya) Images (Image based modeling) Geometry processing …… Modeling Modeling Modeling---Geometry Processing Modeling Basic Elements of Computer Graphics Modeling construct the 3D