---
name: "rotzoomer"
section: "6"
platform: "linux"
package: "xscreensaver"
version: "6.15-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/rotzoomer/6"
---

# rotzoomer(6)

animated rotations and scalings of portions of the screen

## NAME

rotzoomer - animated rotations and scalings of portions of the screen

## SYNOPSIS

**rotzoomer** \[--display *host:display.screen*\] \[--move \| --no-move\] \[--delay *millisecs*\] \[--duration *secs*\] \[--n *count*\] \[--shm \| --no-shm\] \[--window\] \[--root\] \[--window-id *number*\]\[--install\] \[--visual *visual*\] \[--fps\]

## DESCRIPTION

The *rotzoomer* program grabs an image, then picks rectangles and draws scaled and rotated animations of that  section.

The image that it manipulates will be grabbed from the portion of the screen underlying the window, or from the system's video input, or from a random file on disk, as indicated by the *grabDesktopImages*, *grabVideoFrames*, and *chooseRandomImages* options in the *~/.xscreensaver* file; see [**xscreensaver-settings**(1)](/xscreensaver-settings/1.md) for more details.

## OPTIONS

*rotzoomer* accepts the following options:

- **--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.

- **--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.

- **--delay *milliseconds***

  How much of a delay should be introduced between steps of the animation. Default 10, or about 1/100th second.

- **--duration *seconds***

  How long to run before loading a new image.  Default 120 seconds.

- **--move**

  Make the rectangles should wander around the screen.

- **--no-move**

  Make the rectangles be stationary.  This is the default.

- **--n *count***

  How many rectangles to animate simultaneously.  Default 2.

- **--no-shm**

  Disable use of the SHM extension, even if it appears to be available.

- **--fps**

  Display the current frame rate and CPU load.

## 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.

- **XSCREENSAVER\_WINDOW**

  The window ID to use with *--root*.

## SEE ALSO

**X**(1), [**xscreensaver**(1)](/xscreensaver/1.md), [**xscreensaver-settings**(1)](/xscreensaver-settings/1.md), [**xscreensaver-getimage**(6)](/xscreensaver-getimage/6.md)

## COPYRIGHT

Copyright © 2001 by Claudio Matsuoka.  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

Claudio Matsuoka \<claudio@helllabs.org\>