1 Computer Graphics. 2 Who uses computer graphics?

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Computer GraphicsComputer Graphics

Who uses computer graphics?Who uses computer graphics?

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What is computer graphics about?What is computer graphics about?

Computer graphics, as we will focus on it in this course, is about Computer graphics, as we will focus on it in this course, is about taking a computer taking a computer modelmodel and producing an and producing an imageimage of that model. of that model.

Is that it? Yes, no, maybe …Is that it? Yes, no, maybe …

Definitely part of the broader area of computer graphics:Definitely part of the broader area of computer graphics:

• We often wish to We often wish to interactinteract with that model, creating new images on with that model, creating new images on the fly.the fly.

• Sometimes we want to Sometimes we want to animateanimate the model in a predetermined way the model in a predetermined way (like a script) or according to a set of rules.(like a script) or according to a set of rules.

• Also, there are issues how best to Also, there are issues how best to representrepresent that model. that model.

• Of course, all this assumes a way to Of course, all this assumes a way to capture capture oror create create the model, the model, then to finally then to finally displaydisplay the images. the images.

• We shouldn’t forget the actual We shouldn’t forget the actual computationcomputation required to convert required to convert from model to image.from model to image.

What kinds of things are modeled?What kinds of things are modeled?

ShapeShapeWhat is it? Can we approximate it with simpler shapes?What is it? Can we approximate it with simpler shapes?

PositionPositionWhere is it?Where is it?

OrientationOrientationWhich way is it facing?Which way is it facing?

Surface propertiesSurface propertiesWhat color is it? Is is shinny? Is it smooth?What color is it? Is is shinny? Is it smooth?

Volumetric propertiesVolumetric propertiesIs it dense? How does it scatter light?Is it dense? How does it scatter light?

LightsLightsHow bright? What color? Where? Is it directional?How bright? What color? Where? Is it directional?

And More …And More …

Where do we get the models?Where do we get the models?

How do we display images?How do we display images?

What is our model isn’t like the real world?What is our model isn’t like the real world?

What’s in between modeling and display?What’s in between modeling and display?

1 Computer Graphics. 2 Who uses computer graphics?

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