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mirrorblob - Man Page

Draws a wobbly blob that distorts the image behind it.


mirrorblob [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--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.


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


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 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.


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



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.


The window ID to use with --root.

See Also

X(1), xscreensaver(1)


Jon Dowdall.


6.09-1.fc41 (11-Jun-2024) X Version 11 XScreenSaver manual