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Computer Graphics
The document discusses the importance of computer graphics across various fields such as movies, games, and architecture, emphasizing the role of rendering in visualizing models into images. Key concepts in rendering include OpenGL, lighting, ray tracing, texture, shadows, and radiosity, which contribute to creating realistic graphics. Additionally, it highlights advanced research topics in rendering, computer animation, and geometry.
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Computer Graphics
- 1. Computer Graphics Presented by R.SakthivelMurugan, AP/Mech, KCET.
- 2. Why we needgraphics? • Movies. • Games. • Simulation • CAD/CAM/CAE • Architecture • Visualization All the above are achieved by computer software using various algorithms.
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- 9. Rendering Rendering converts amodel into an image either by simulating light transport to get physically- based photorealistic images, or by applying some kind of style as in non-photorealistic rendering.
- 10. Rendering includes • BasicConcepts, OpenGL • Lighting • Ray Tracing • Acceleration of Ray Tracing • Texture • Shadow • Radiosity
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- 12. Lighting • Lighting andshading are important tools for making graphics images appear more realistic and more understandable.
- 13. Ray Tracing • Raytracing is a technique that performs, by a single unified technique, global calculations of lighting and shading, hidden surface elimination, reflection and transmission of light, casting of shadows, and other effects.
- 14. Acceleration of RayTracing • The biggest disadvantage of ray tracing is that it is too slow, so need Acceleration by techniques like Hierarchical Structure
- 15. Texture • Texture exhibitsgreat realistics in rendering
- 16. Shadow • Shadows areimportant in creating realistic images and in providing the user with visual cures about object placement.
- 17. Radiosity • Radiosity isa global lighting method that tracks the spread of diffuse light around a scene
- 18. Advanced Research Topics •Rendering • Computer Animation • Geometry • Video-based rendering