glforestfire man page on aLinux
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glforestfire(6) XScreenSaver manual glforestfire(6)
NAME
glforestfire - draws a GL animation of sprinkling fire-like 3D trian‐
gles
SYNOPSIS
glforestfire [-display host:display.screen] [-window] [-root] [-visual
visual] [-delay microseconds] [-count number_of_particles] [-trees num‐
ber_of_trees] [-size viewport_size] [-texture] [-no-texture] [-shadows]
[-no-shadows] [-fog] [-no-fog] [-wireframe] [-no-wireframe] [-wander]
[-no-wander] [-trackmouse] [-no-trackmouse] [-fps]
DESCRIPTION
The glforestfire program draws an animation of sprinkling fire-like 3D
triangles in a landscape filled with trees.
OPTIONS
glforestfire accepts the following options:
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-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.
-fps Display the current frame rate, CPU load, and polygon count.
-trees number_of_trees
Specify how much trees are drawn in the landscape.
-count number_of_particles
Specify how much fire particles are drawn. A very special case
is 0 wich means that you get rain !
-size viewport_size
Viewport of GL scene is specified size if greater than 32 and
less than screensize. Default value is 0, meaning full screen‐
size.
-texture
Show a textured ground and the trees. This is the default.
-no-texture
Disables texturing the landscape. This implies that no trees
are drawn.
-shadows
Show a shadow for each particle on the ground. This is the
default.
-no-shadows
Disables the drawing of the shadows.
-fog Show a fog in the distance.
-no-fog Disables the fog. This is the default.
-wander Move the observer around the landscape. This is the default.
-no-wander
Keep the fire centered on the screen.
-trackmouse
Let the mouse be a joystick to change the view of the land‐
scape. This implies -no-wander.
-no-trackmouse
Disables mouse tracking. This is the default.
-wire Draw a wireframe rendition of the fire: this will consist only
of single-pixel lines for the triangles.
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 © 2001 by Eric Lassauge. Permission to use, copy, modify,
distribute, and sell this software and its documentation for any pur‐
pose 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 repre‐
sentations are made about the suitability of this software for any pur‐
pose. It is provided "as is" without express or implied warranty.
The original code for this hack was written by David Bucciarelli
(tech.hmw@plus.it) and could be found in the demo package of Mesa
(Mesa-3.2/3Dfx/demos/). This hack is the result of the merge of two of
the David's demos (fire and rain).
AUTHOR
David Bucciarelli <tech.hmw@plus.it> Eric Lassauge <lassauge@mail.dot‐
com.fr>
X Version 11 5.07 (10-Aug-2008) glforestfire(6)
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