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Applet Tutorials: Deform
 
Deform applet

This applet deforms a selected image as if you see it through a corrugated glass. The effect is based on the interference of two moving radial waves W1 and W2. Say, there are two distortion filters moving around over a selected image. Each filter moves like a pendulum defined by the initial velocities (Xv, Yv) and the length of the cycle.

[For more technical information about the available parameters, click here.]

Most parameters are self-explanatory and you can always see brief description of each parameter by moving the mouse pointer over the wizard.

First, choose an image to be deformed. The applet "Width" and "Height" are automatically entered when you specify the screen image and a "Resolution" value. "Resolution" is a zooming parameter.

For instance, the value 2 gives twice as large an applet size as the screen size, while the value 1 changes nothing.

Then you decide if textscroll function is enabled by checking "Enable textscroll" box.

Next, configure the distortion filters seen at the left image.

(1) Roughness of the filters:

"Distortion Value" decides the roughness of distortion filters from 0 to 500. A smaller value stands for less rough filter, which results in many waving mesh-like texture. In addition, "Offset" values control a similar effect. A larger value up to the applet "Width" for "Offset" empowers the complex waving texture. If this value is too small, there are virtually no wavings.

(2) The power of distortion:

The power of the filters is determined by "Distortion Factor", which takes a value between 1 and 100. Smaller values cause less distortion, while higher values do less.

(3) The motion of the filters:

Now set the movement of two filters. (Xv1, Yv1) and (Xv2, Yv2) are the initial velocities of two filters W1, W2. They repeat periodic movements defined by these values and the common cycle. The length of the cycle is calculated by "Speed" parameter. When a "Speed" value is high, the cycle of the pendulumic movement of two filters is short.

We have only discussed about the deform specific parameters. For generic parameters, please read wizard section.

Proceed to the textscroll menu if you have checked the textscroll box; otherwise go to the expert menu.