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Man Pages


Manual Reference Pages  -  CRACKBERG (6)

NAME

crackberg - Lose your way wandering some height fields, and enjoy candy.

CONTENTS

Synopsis
Description
Options
Environment
See Also
Copyright
Author

SYNOPSIS

crackberg [-root] [-window] [-install] [-display host:display.screen] [-visual visual] [-window-id id] [-delay usecs] [-fps] [-crack] [-lit] [-boring] [-letterbox] [-flat] [-wire] [-nowater] [-visibility float] [-color string] [-nsubdivs integer]

DESCRIPTION

Flies through height maps, optionally animating the instantiation and destruction of generated tiles; by default, tiles ’grow’ into place (height gradually increased up to correct value). In windowed mode the following key controls are available:
left, right
  Turn left and right.
a,w,s,d Move left, forwards, backwards, and to the right, respectively.
1,2 Decrease and increase manual speed, respectively.
Spacebar Return to automatic control.

OPTIONS

crackberg accepts the following options:
-root Draw on the root window.
-window Draw on a newly-created window. This is the default.
-install Install a private colormap for the window.
-visual visual
  Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
-delay microseconds
  Delay between frames; default 20000 (1/50th of a second).
-fps Display the current frame rate, CPU load, and polygon count.
-crack Use all possible methods to animate tile instantiation.
-boring Do not animate instatiation at all; use this to get standard landscape generator behavior.
-letterbox Drawable window region has a 16:9 aspect ratio, regardless of actual window size.
-lit Enable lighting.
-flat Flat shading (OpenGL will use one color per primitive, rather than interpolating betwixt vertices).
-wire Wireframe.
-nowater Do not display ’water’ (forces negative values to zero, and selects a different coloring method).
-visibility float
  Value in range [0.2,1.0] (default 0.6) specifying proportion of viewable XY plane which is to be drawn upon.
-color string
  Selects color scheme. Use with no or bogus argument for current list.
-nsubdivs integer
  Number of times to recursively subdivide each triangular tile. Each increment increases total triangles by a factor of 4; for instance the default setting 4 results in 256 triangles per tile.

ENVIRONMENT

DISPLAY to get the default host and display number.
XENVIRONMENT
  to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

SEE ALSO

X(1), xscreensaver(1)

COPYRIGHT

Copyright © 2005 by Matus Telgarsky. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

AUTHOR

Matus Telgarsky <catachresis@cmu.edu>, 2005.
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X Version 11 CRACKBERG (6) 5.12 (15-Sep-2010)

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