NAME¶

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

SYNOPSIS¶

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]

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. -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.

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 © 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.

AUTHOR¶

Jon Dowdall.