Friday, 22 January 2016

vector and rasta graphics

In photoshop, we show pictures in pixels, these are called rastagraphics.

To turn something into pixels is to rasterise.

Illustrator- these show images as vector-graphics it doesn't show them in pixels.

When you zoom in on illustrator the image won't break up.

The pictures are made up tiny little shapes and the computer re draws the shapes when we zoom in so the picture does not break up.

Illustrator is good for flat shapes and colours. This is where there are no difference between the colour and another in a small area.

Illustrators no good for trying to show tones as a vector graphic.

Good for animating, they re draw the pictures really quickly

It's good for web based graphics when when you have to make things bigger.

Here are some examples of rastagraphics in Photoshop:



You can seethe little squares that are called pixels. This is where the rastagraphics appear ad the picture has broken up. Whereas in illustrator the picture zoomed looks like this:



The picture does not break up as you can see it is still clear.









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