Provided by: xscreensaver-gl_5.34-2ubuntu1_amd64 bug


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


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


       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.


       -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.  -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 exponentially.

       -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.


       DISPLAY to get the default host and display number.

               to  get  the name of a resource file that overrides the global resources stored in
               the RESOURCE_MANAGER property.


       X(1), xscreensaver(1)


       Copyright © 2003 by Jon Dowdall.  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.


       Jon Dowdall.