Introduction to Computer graphics

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  • 1. Computer graphics is using computers to generate and display images. It is about how to program a computer to generate photo-realistic images. Computer graphics are graphics created using computers and the representation of image data by a computer specifically with help from specialized graphic hardware and software.
  • 2. Graphics is cool I like to see what I’m doing I like to show people what I’m doing Graphics is interesting Involves simulation, algorithms, architecture… Almost no area in which graphical displays cannot be used
  • 3. Many of the leading scientists through the ages have been ‘visual thinkers’… -Leonardo da Vinci -Einstein -Clerk Maxwell
  • 4. Interactive Graphics In interactive computer graphics user have some control over the picture i.e user can make any change in the produced image. Passive Graphics A computer graphics operation that transfers automatically and without operator intervention. Noninteractive computer graphics involves one way communication between the computer and the user.
  • 5. Image processing Rendering Modeling Animation
  • 6. • Image Representation ο Sampling ο Reconstruction ο Quantization & Aliasing • Image Processing ο Filtering ο Warping ο Morphing ο Composition • Raster Graphics ο Display devices ο Color models
  • 7. • 3D Rendering Pipeline ο Modeling transformations ο Viewing transformations ο Hidden surface removal ο Illumination, shading, and textures ο Scan conversion, clipping ο Hierarchical scene graphics ο OpenGL • Global illumination ο Ray tracing ο Radiosity
  • 8. • Representations of geometry ο Curves: splines ο Surfaces: meshes, splines • Procedural modeling ο Sweeps ο Fractals ο Grammars
  • 9. • Keyframing ο Kinematics ο Articulated figures • Motion capture ο Capture ο Warping • Behaviors ο Planning, learning, etc.
  • 10. Entertainment: Cinema Pixar: Monster’s Inc. Medical Visualizations Visible Human Project
  • 11. Scientific Visualization Computer Aided Design
  • 12. Entertainment: Games Information Visualizations