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Animation Tutorial #2
Perspective


Welcome. This tutorial is designed to give you more practice in measuring and drawing templates as well as a short lesson in perspective. By short, I mean extremely short. In fact, I probably should have given it a different title. It talks nothing of horizon lines, vanishing points, picture planes, and all the other terms from the study of perspective. However, it does have an object (a ball) which gets bigger as it comes toward you and smaller as it goes away; and that's the idea behind perspective. Maybe I should have called it simply:
"Ball getting bigger and smaller".

The Template:

example 1
example 2

Drawing programs can differ in the way they draw a circle. Some draw the circle from it's center. You place your cursor where you want the center, click and move the mouse to where you want the outer edge of the circle to be. The circle gets drawn by it's radius.

The other method draws the circle based on it's diameter. You must visualize the circle as being drawn within a box. When you click the mouse, you are starting in the corner of a square the size of the circle's diameter. Confusing, of course it is. Try it and see.

example 3

example 4 example 5
example 6 example 7

Once you have your template drawn and saved, the whole process becomes a simple matter of erasing the circles you don't want for each frame. When you complete a frame be sure to save it under a new name ( other than the name of your template ). This is important since you don't want to ruin the template. For example I saved my template under the file name "balltemp.gif"... for ball template. After modifying the template to make a frame, I save the resulting file as "frame1.gif", "frame2.gif"...etc.

Here are the resulting frames:

example 8

Making changes:

If you decide to modify your frames after you've drawn them, be sure to make the frames equal in size and keep all elements in the proper relationship. Below, I have increased the size of the frames to accommodate shadows I drew as an afterthought. All frames had to be increased in the same way.

example 9

When adding color, be sure to use the same colors in the frames. This might seem obvious, but it can get confusing when you have a pallette with several different shades of the same color in front of you. Once the animation is moving, slight color differences can give results you might not want.

example 10


Here's the whole thing running forward and backward:

The borders of the frames have been erased.

example 11

HAPPY ANIMATING!




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