X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Ft3d.man;fp=hacks%2Ft3d.man;h=0000000000000000000000000000000000000000;hb=7b34ef992563d7bcbb64cc5597dc45fa24470b05;hp=0db943b8c7d58049e0138e23cdbb5b8733e63f17;hpb=c1b9b55ad8d59dc05ef55e316aebf5863e7dfa56;p=xscreensaver

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-.TH t3d 1 "Version 1.1" "Time 3D"
-.SH NAME
-t3d \- clock using flying balls to display the time
-.SH SYNOPSIS
-t3d [ \f2 options\f1 ]...
-.SH DESCRIPTION
-.PP
-Time 3D is a clock. It uses flying balls to display the time. This
-balls move and wobble around to give you the impression your
-graphic workstation with its many XStones is doing something.
-.PP
-t3d uses mouse and keyboard to let you fly through the balls. Hit
-.B S
-to speed up, 
-.B A
-to slow down,
-.B Z
-to zoom in and
-.B X
-to zoom out.
-Use the
-.B left mouse button
-to rotate to the left and the
-.B right mouse button
-to rotate the view to the right. Use the
-.B middle mouse button
-to change the optical axis and the moving direction.
-.B 0
-(zero) will stop you.
-.B Q
-quits.
-.PP
-.SH OPTIONS
-.TP
-.BI "-move " "factor"
-Modifies the direction move of t3d. The clock looks 30 degrees*
-.I factor
-to the left and to the right periodically.
-.TP
-.BI "-wobble " "factor"
-Modifies the wobbling (sounds nice :-) of t3d by multiplying the
-default deformation of the clock with
-.I factor.
-.TP
-.B -minutes
-Shows one small ball for every minute, instead of one for every 2.5 minutes.
-.TP
-.BI "-mag " "factor"
-Changes the magnification of t3d. By default, t3d draws a 200x200 image.
-A .I factor
-of 2 means, it will use a 400x400 image.
-.TP
-.BI "-cycle " "period"
-Sets the moving cycle to
-.I period
-seconds. By default, this value is 10 seconds.
-.TP
-.BI "-delay " "microsec"
-Inserts a wait after drawing one view of the clock. By default, t3d waits
-40 ms after each drawing. This helps you to keep the performance loss
-small.
-.TP
-.BI "-fast " "precalc_radius"
-t3d uses bitmap copy to draw precalculated balls. You can specify the radius
-in pixels up to which t3d should precalculate balls. t3d will set a useful
-range by itself using the magnification when it is started.
-.TP
-.B -colcycle
-Draws cyclic the color scale used for the balls in the background instead
-of the normal black.
-.TP
-.BI "-rgb " "red green blue"
-Selects the color in RGB color space of the lightning spot on the balls.
-All the other colors used for balls or
-.B -colcycle
-are less intensive colors of the same hue and saturation. All values
-in range of 0 to 1.
-.TP
-.BI "-hsv " "hue saturation value"
-Selects the color in HSV color space.
-.I hue
-is in degrees from 0 to 360, all other values in range from 0 to 1. It gives
-nice but rather unpredictable results, if you use a saturation of e.g. 2.
-Try it at your own risk.
-.TP
-.BI "-hsvcycle " "speed"
-Rotates the hue axis every 10 seconds*
-.I speed.
-.TP
-.B -help
-Prints a short usage message.
-.TP 8
-.B \-fps
-Display the current frame rate and CPU load.
-.PP
-.SH AUTHOR
-.PP
-Bernd Paysan
-
-Email: bernd.paysan@gmx.de
-
-Hacked on by jwz@jwz.org for xscreensaver.
-
-.SH ACKNOWLEDGEMENT
-.PP
-Acknowledgement to Georg Acher, who wrote the initial program displaying
-balls.
-
-.SH COPYING
-.PP
-Copy, modify, and distribute T3D either under GPL version 2 or newer, or
-under the standard MIT/X license notice.
-
-.SH DISCLAIMER
-.PP
-T3D is not related to T3D(tm), the massive parallel Alpha--based
-supercomputer from Cray Research. T3D's name was invented in 1991,
-years before the project at Cray Research started. There is no
-relation from T3D to Cray's T3D, even the balls surrounding T3D on
-some posters weren't an inspiration for T3D. I don't know anything
-about the other way round.
-
-The programming style of T3D isn't intended as example of good style,
-but as example of how a fast prototyped demo may look like. T3D wasn't
-created to be useful, it was created to be nice.
-
-.SH KNOWN BUGS
-.PP
-There are no known bugs in T3D. Maybe there are bugs in X. Slight
-changes in the T3D sources are known to show these bugs, e.g. if
-you remove the (int) casting at the XFillArc x,y,w,h-coordinates...