Computer Graphics and Animation in Detail
- 1. Computer Graphics and Animation 1 Er. Shreeraj Khatiwada, MSc Pokhara University, Nepal 2/27/2024 Computer Graphics and Animation
- 2. Objectives • will take a brief overview of: ❖ Basics of computer graphics ❖ 2D and 3D transformation ❖ Clipping of line and polygon ❖ Different method of visible surface determination ❖ Animation and Virtual Reality 2 2/27/2024 Computer Graphics and Animation
- 3. Computer Graphics • Greek word “graphikos” – “something written” • Refers to the creation, storage and manipulation of pictures and drawings using digital computers 2/27/2024 Computer Graphics and Animation 3
- 4. Computer Graphics Interactive computer graphics: • a subfield of computer graphics which focuses on the generation of images and animations at interactive frame rates. • Two-way communication between computer and user 2/27/2024 Computer Graphics and Animation 4
- 5. Computer Graphics Non-Interactive Computer Graphics: • only one-way communication between the computer and the user, • User can see the produced image, and he cannot make any change in the image. 2/27/2024 Computer Graphics and Animation 5
- 6. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 6 User interfaces
- 7. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 7 Plotting
- 8. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 8 Office automation and electronic publishing
- 9. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 9 Computer-Aided drafting and design
- 10. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 10 Simulation
- 11. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 11 Entertainment
- 12. Application of Computer Graphics 2/27/2024 Computer Graphics and Animation 12 Art Cartography Presentation Graphics
- 13. hardware Computer Hardware: • Physical components of a computer i.e. tangible parts • Graphics hardware is computer hardware that generates computer graphics and allows them to be shown on a display Input Devices 2/27/2024 Computer Graphics and Animation 13
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- 15. Hardware • Output Devices: 2/27/2024 Computer Graphics and Animation 15
- 16. Unit-02 2D transformation 2/27/2024 Computer Graphics and Animation 16 2D Reflection
- 17. 2D transformation 2/27/2024 Computer Graphics and Animation 17 2D Rotation
- 18. 2D transformation 2/27/2024 Computer Graphics and Animation 18 2D Scaling
- 19. 3D transformation 2/27/2024 Computer Graphics and Animation 19
- 20. Window to viewport transformation 2/27/2024 Computer Graphics and Animation 20
- 21. clipping 2/27/2024 Computer Graphics and Animation 21 Line Clipping Polygon Clipping
- 22. Visible Surface Determination Algorithm • Z-Buffer Algorithm 2/27/2024 Computer Graphics and Animation 22
- 23. Visible Surface Determination Algorithm • Painter’s / Depth-sort Algorithm 2/27/2024 Computer Graphics and Animation 23
- 24. Color Model: RGB • Widely used color representation method in computer graphics. • It uses a color coordinate system with three primary colors: • R (Red) • G (Green) • B (Blue) 2/27/2024 Computer Graphics and Animation 24
- 25. Color Model: RGB 2/27/2024 Computer Graphics and Animation 25 • In this, colors are represented by a cube. • The Origin (0,0,0) represents black and the diagonally opposite vertex (1,1,1) is White. • The diagonal line connecting black and white corresponds to all the gray colors between black and white, which is also known as gray axis.
- 26. Color Model: HSV • Every color is represented by three components Hue (H): color portion, Saturation (S): amount of gray and Value (V): brightness or intensity. • HSV color model may be depicted as a cone or a cylinder. 2/27/2024 Computer Graphics and Animation 26
- 27. animation • Derived from Latin word “anima” means “act, process or result of imparting life, interest, spirit, motion, or activity”. • “to any time sequence of visual changes in a picture” or • "the process of creating an illusion of motion and shape change by means of rapid display of various types of pictures that were made to create a single scene." 2/27/2024 Computer Graphics and Animation 27
- 28. Principles of animation 2/27/2024 Computer Graphics and Animation 28
- 29. Virtual reality • Virtual reality is a simulated 3D environment that enables users to explore and interact with a virtual surrounding in a way that approximates reality, as it is perceived through the users' senses. • The environment is created with computer hardware and software, although users might also need to wear devices such as helmets or goggles to interact with the environment. 2/27/2024 Computer Graphics and Animation 29
- 30. Virtual reality 2/27/2024 Computer Graphics and Animation 30
- 31. THANK YOU!!! 2/27/2024 Computer Graphics and Animation 31