Anfy 2

Applet Tutorial

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Applet Tutorials: Plasma

This applet visualises a famous plasma effect.

[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, define the applet size and its resolution "Width", "Height", and "Resolution". Resolution works as a stretcher value for the internally calculated image. If you want high quality result, set this to one.

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

You can change the rotation speed of the plasma at "Speed" parameter.

Plasma is generated by 3 different generators Gen1, Gen2, Gen3. Gen1 is a smoothing parameter, with which fog and psychedelic effect in two extreme cases can be achieved.

Gen2 and Gen3 are xy stretchers respectively.

As for colouring, we provide a little complex palette system. I'm afraid, but I need to go a bit into math to illustrate how the applet utilises colour.

Each RGB channel consists of three parameters. Consider Rn, Gn, Bn (n=1, 2, 3) represent the available 9 parameters for the palette system. The final palette is determined by the following formula:

Red = (sin(r*PI*2/(256/R3 ))*R1 )+R2
Green= (sin(r*PI*2/(256/G3))*G1)+G2
Blue = (sin(r*PI*2/(256/B3 ))*B1 )+B2

Here, r steps from 0 to 255. R1, R2, G2, G2, B1, and B2 range from 0 to 255, while R3, G3, and B3 rage from 1 to 8.

There isn't easy way of explaining this, but I recommend you to experiment various values starting with the default setting until you get the palette you want.

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