home *** CD-ROM | disk | FTP | other *** search
Text File | 1999-07-05 | 6.0 KB | 134 lines | [TEXT/ttxt] |
-
- AnfyPlasma - Copyright (C) by Fabio Ciucci 1996-99
-
-
- This applet can generate and animate a realtime "plasma" effect, well known
- in contest scenes. This applet is fully parametrized, so you can generate
- various kinds of plasma effects.
-
- The transparent image gun.gif is a courtesy of Lone Star Posse Prod. Inc.
-
- *************************************************************************
-
- NECESSARY FILES.
-
- Apart from an optional foreground image, the following 3 ".class" files
- must be uploaded:
-
- Plasma3.class
- Lware.class
- anfy.class
-
- Plus, Plasma3.jar for speedy loading on recent browsers.
-
- *************************************************************************
-
- EXAMPLE.
-
- Insert the <applet></applet> tag in your html document as follows to add
- this applet to your page (Comments after the ";" symbol are code descriptions
- and acceptable min/max values. They are not part of the applet language):
-
-
- <applet archive="Plasma3.jar" code="Plasma3.class" width="192" height="192">
- <param name="credits" value="Applet by Fabio Ciucci (www.anfyteam.com)">
- <param name="regcode" value="NO"> ; Registration code (if you have it)
- <param name="reglink" value="NO"> ; Optional URL link when the applet
- is "clicked'.
- <param name="regnewframe" value="YES"> ; Reglink opened in new frame?
- <param name="regframename" value="_blank"> ; Name of new frame for reglink
- <param name="statusmsg" value="Plasma applet">; Statusbar message
- <param name="res" value="3"> ; resolution (1-8)
- <param name="gen1" value="43"> ; generator1 (8-2000)
- <param name="gen2" value="31"> ; generator2 (3-256)
- <param name="gen3" value="36"> ; generator3 (3-256)
- <param name="red1" value="0"> ; Red1 (0-255)
- <param name="red2" value="127"> ; Red2 (0-255)
- <param name="red3" value="1"> ; Red3 (1-8)
- <param name="green1" value="127"> ; Green1 (0-255)
- <param name="green2" value="127"> ; Green2 (0-255)
- <param name="green3" value="2"> ; Green3 (1-8)
- <param name="blue1" value="127"> ; Blue1 (0-255)
- <param name="blue2" value="127"> ; Blue2 (0-255)
- <param name="blue3" value="1"> ; Blue3 (1-8)
- <param name="speed" value="1"> ; Speed (1-8)
- <param name="overimg" value="NO"> ; Optional image over applet
- <param name="overimgX" value="0"> ; Over image X offset
- <param name="overimgY" value="0"> ; Over image Y offset
- <param name="memdelay" value="1000"> ; Memory deallocation delay
- <param name="priority" value="3"> ; Task priority (1..10)
- <param name="fixnetscape" value="NO"> ; Fix Netscape 3.0 bug ("YES","NO")
- <param name="MinSYNC" value="10"> ; Min. milliseconds/frame for sync
- Sorry, your browser doesn't support Java. ; Message for no java browsers.
- </applet> ; End of applet tag
-
-
- ***************************************************************************
-
- INSTRUCTIONS.
-
- The following instructions describe how to change parameters:
-
- Attempting to change the credits parameter will disable the applet.
-
- To activate the reg parameters read the shareware registration notes.
- In the "regcode" parameter, place the registration code you purchased
- from the author. If the code is correct and the applet is run from the
- registered domain name, you can use "link" parameters to link to a URL
- when the applet is "clicked".
-
- If you set "regnewframe" to "YES", you can specify a specific frame location
- for the reglink:
-
- "_blank" : To load the link in a new blank unnamed browser window.
- "_self" : To load the link into the same window the applet occupies.
- "_parent" : To load the link into the immediate FRAMESET parent.
- "_top" : To load the link into the top body of the window.
-
- You can also set a custom frame name, such as "myframe1".
-
- With the "overimg" parameter you can specify the name of an image that will
- be painted over the applet. The best options are transparent GIF images.
- NOTE: Animated GIF images are supported, but will be animated only on
- latest browsers (Netscape 4 and Explorer 4 or newer).
-
- With "overimgX" and "overimgY" you can center the image over the applet area.
-
- The size of the applet is determined by the width and height tags.
-
- The "res parameter determines the resolution: with res=1 pixels are small,
- but the effect is slow. With res=8 pixels are too big but the effect isfast.
- The optimum choices are 2-4.
-
- About the plasma generators: (gen1,gen2,gen3)- I can say that gen1 is a
- rather smooth value: the min is 8 (very smooth, like fog), and the max is
- 2000, where all is psychedelic (too much, I think). Gen2 and Gen3 are x and y
- stretchers... they can go from 3 (many small curves) to 256 (one great curve).
-
- About the palette: there are 3 parameters for each Red Green Blue (RGB)
- component. This is more complex, but can give you much flexibility (and
- also the power to do many bugged palettes).
-
- The red1,green1,blue1 values (0-255) are the multipliers of totality.
- The red2,green2,blue2 values (0-255) are fixed added values of totality.
- The red3,green3,blue3 values (1-8) are "smoothing" values of totality.
- This means that if red1=0, then the green3 value is totally disabled and
- all the 256 colors will have the "red2" red component.
-
- You can experiment with these values, but some combinations make ugly
- palettes. For those who understand palettes, consider the formula used to
- make a palette (r steps from 0 to 255):
-
- red = (sin(r*PI*2/(256/red3 ))*red1 )+red2
- green= (sin(r*PI*2/(256/green3))*green1)+green2
- blue = (sin(r*PI*2/(256/blue3 ))*blue1 )+blue2
-
- In any case, a component value must exceed 255.
-
- The speed from 1 to 8 is useful, only when you make really large plasmas.
- In this case you can increase this value a bit, but the plasma will not
- really be faster: it will simply skip some frames.
-
- This also adds flickering and loose smoothing effects (in faster machines).
- Please use speed = 1 when possible, and don't exceed speed=4.
-