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Computer Graphics : Part 2

Computer Graphics : Part 2

Sricharan

May 08, 2015
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  1. Computer Graphics: Overview

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  2. What is computer graphics?

    Representation and display of image data

    Concerned with mathematical and computational
    aspects of displaying and representing images

    Not concerned with design/aesthetics

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  3. 3D Modelling

    Mathematical representation of 3D surface

    Polygonal modelling: Mesh

    Curve modelling: NURBS

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  4. Wireframe model

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  5. NURBS surface

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  6. 3D Rendering

    Displaying a model (or collection of models)

    Real-time/Non real-time

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  7. The Graphics Pipeline

    Vertex transformation: Translation, rotation,
    scaling, projection

    Clipping and rasterization, hidden surface detection

    Per-pixel operations: Lighting, texture mapping

    Display finished frame

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  8. Transformation matrices

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  9. Illumination

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  10. Texture mapping

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  11. The Role of the Graphics card

    GPU and RAM

    Used for hardware accelerated graphics
    computations

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  12. The Graphics Processing Unit

    Implements the graphics pipeline in hardware

    Performs vector and matrix operations, clipping,
    interpolation, rasterization and more

    Can simultaneously perform many computations

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  13. Video Memory

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  14. The Graphics Pipeline

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  15. APIs: OpenGL and Direct3D

    Used to command the graphics card

    Configure graphics pipeline, copy data to video
    memory, load and run shaders

    Low-level

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  16. Thank you \(^o^)/

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