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ICS 61 - Graphics. Light Color Wheel Color Perception.

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Presentation on theme: "ICS 61 - Graphics. Light Color Wheel Color Perception."— Presentation transcript:

1 ICS 61 - Graphics

2 Light

3 Color Wheel

4 Color Perception

5 Rods and Cones

6 Red Green Blue

7

8 Hue Saturation Value

9 Pixels

10 2-D Graphics – Approaches Sprites (pixels, created in advance and stored in a file) Primitive shapes (squares, circles, etc.) Text Vector graphics (e.g., Flash) - outlines Set each pixel – probably with an algorithm (e.g., to make fireworks). “Particle systems”

11 Sprites In Scratch, the different frames are called “Costumes”.

12 Vector graphics Source: http://www.intmath.com/vectors/vector-art.php Vector based images can be zoomed without pixelation. Ugly zoomed raster image. A vector image’s outline is defined by mathematical curves.

13 Text – vector and bitmap

14 Particle Systems


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