1.Intro to Computer Graphics

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    PRESENTED BY:

    SIMRAN

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    Creation, Manipulation, and Storage of

    geometric objects (modeling) and their images

    (rendering)

    Display those images on screens or hardcopy

    devices

    Image processing

    Others: GUI, Displays (VR)...

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    Movie Industry Leaders in quality and artistry

    Not slaves to conceptual purity

    Big budgets and tight schedules

    Reminder that there is more toCG than technology

    Hey, How'd they do that?

    Defines our expectations

    Slide information from Leonard McMillian's slideshttp://www.cs.unc.edu/~mcmillan/comp136/Lecture1/compgraf.html

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    Game Industry

    The newest driving force in CG Why? Volume and Profit

    This is why we have commodity GPUs

    Focus on interactivity

    Cost effective solutions Avoiding computating and other tricks

    Games drive the baseline

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    Medical Imaging and Scientific Visualization Tools for teaching and diagnosis

    No cheating or tricks allowed

    New data representations and modalities

    Drive issues of precision and correctness Focus on presentation and interpretation of data

    Construction of models from acquired data

    Nanomanipulator, UNCJoe Kniss, Utah Gordon Kindelman, Utah

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    Computer Aided Design Mechanical, Electronic, Architecture,...

    Drives the high end of the hardware market

    Integration of computing and display resources

    Reduced design cyles == faster systems, sooner

    ProEngineer, www.ptc.com

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    Frame Buffer-Chunk of RAM in w/c the computer

    program stores the image in form of pixels

    Display Hardware-produces image line by line Video Controller-H/W device that constantly reads

    frame buffer and produces image on display

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    a high-end microcomputer designed for technical or

    scientific applications.

    Intended primarily to be used by one person at atime, they are commonly connected to a local area

    network and run multi-user operating systems.

    The term used to refer to a mainframe computer

    terminal or a PC connected to a network. offered higher performance than desktop

    computers,

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    computer hardware that generates computer graphics

    and allows them to be shown on a display,

    usually using a graphics card (video card) in

    combination with a device driver to create the images

    on the screen.

    The most important piece of graphics hardware is

    the graphics card(piece of equipment that renders out

    all images and sends them to a display.)

    graphics cards: integrated and dedicated

    integrated graphics card: is bound to the motherboard

    and shares RAM(Random Access Memory) with

    the CPU, reducing the total amount of RAM available.

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    A dedicated graphics card :has its own RAM andProcessor for generating its images, and does notslow down the computer.

    have higher performance than integrated graphics

    cards

    It is possible to have both dedicated and integratedgraphics, however once a dedicated graphics card isinstalled, the integrated card will no longer function

    until the dedicated card is removed. Parts of a Graphics Card : The GPU or graphics

    processing unit, is the unit that allows the graphicscard to function.

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    Video Memory is built in RAM installed on thevideo card that provides the graphics card with itsown RAM and allows it to run smoothly withouthaving to take resources from the computer

    Display Drivers : A display driver is a piece ofsoftware which allows your graphics hardware tocommunicate with your operating system.

    allow your computer to utilize parts of itself, and

    without them, the machine would not function. a driver is required to translate between the two, and

    convert general commands into specific commands,and vice versa.

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