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mirrorblob(6)		       XScreenSaver manual		   mirrorblob(6)

NAME
     mirrorblob - Draws a wobbly blob that distorts the image behind it.

SYNOPSIS
     mirrorblob  [--display  host:display.screen]  [--visual  visual] [--window]
     [--root] [--window-id number] [--wire] [--delay number]  [--fog]  [--walls]
     [--colour]  [--texture] [--offset-texture] [--blend] [--antialias] [--reso-
     lution number] [--bumps number] [--fade-time number]  [--hold-time  number]
     [--zoom number] [--fps]

DESCRIPTION
     Draws  a  wobbling  blob,	making use of alpha blending, fog, textures, and
     lighting, plus a ``frames per second'' meter so that you can tell how  fast
     your graphics card is... Requires OpenGL.

OPTIONS
     --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.

     --window
	     Draw on a newly-created window.  This is the default.

     --root  Draw on the root window.

     --window-id number
	     Draw  on  the specified window.  --wire Render in wireframe instead
	     of solid.

     --delay number
	     Per-frame delay, in microseconds.	Default: 10000 (0.01 seconds.).

     --fog | --no-fog
	     Whether to enable fog.

     --walls | --no-walls
	     Add walls for blob to hit.

     --colour | --no-colour
	     Draw coloured blob.  If also textured, the texture will have  color
	     mixed in.

     --texture | --no-texture
	     Whether to wrap a texture image on the blob.

     --offset_texture | --no-offset_texture
	     Whether  to  ofset the texture calculations to only use a region of
	     the image
	      under the blob.  This works well with a semi-transparent blob.

     --blend | --no-blend
	     Whether to draw a transparent blob. (see also offset_texture above)

     --antialias | --no-antialias
	     Whether to antialias lines.

     --resolution number
	     Resolution of the tessellation used to calculate and draw the blob.
	     Larger
	      numbers give a smoother blob but increase calculation times  expo-
	     nentially.

     --bumps number
	     Number of bumps used to distort the blob.

     --hold-time number
	     Time until loading a new image.

     --fade-time number
	     Time taken to transition between images.

     --zoom number
	     Size multiplier for blob.

     --fps   Display the current frame rate, CPU load, and polygon count.

ENVIRONMENT
     DISPLAY
	     to get the default host and display number.

     XENVIRONMENT
	     to  get  the  name of a resource file that overrides the global re-
	     sources stored in the RESOURCE_MANAGER property.

     XSCREENSAVER_WINDOW
	     The window ID to use with --root.

SEE ALSO
     X(1), xscreensaver(1)

COPYRIGHT
     Copyright (C) 2003 by Jon Dowdall.  Permission to use, copy,  modify,  dis-
     tribute,  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  no-
     tice 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
     Jon Dowdall.

X Version 11		       6.15 (30-Mar-2026)		   mirrorblob(6)

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