xcompmgr(1)

NAME
xcompmgr - sample X compositing manager

SYNOPSIS
xcompmgr [-d display] [-r radius] [-o opacity] [-l left-offset] [-t top-offset] [-acCfFnsS]

DESCRIPTION
xcompmgr is a sample compositing manager for X servers supporting the XFIXES, DAMAGE, and COMPOSITE extensions. It enables basic eye-candy effects.

OPTIONS

-d display
    Specifies the display to manage.

-r radius
    Specifies the blur radius for client-side shadows.

-o opacity
    Specifies the opacity for client-side shadows.

-l left-offset
    Specifies the left offset for client-side shadows.

-t top-offset
    Specifies the top offset for client-side shadows.

-I fade-in-step
    Specifies the opacity change between steps while fading in.

-O fade-out-step
    Specifies the opacity change between steps while fading out.

-D fade-delta
    Specifies the time (in milliseconds) between steps in a fade.

-a  Automatic server-side compositing. This instructs the server to use the standard composition rules. Useful for debugging.

-c  Client-side compositing with soft shadows and translucency support.

-f  When -c is specified, enables a smooth fade effect for transient windows like menus, and for all windows on hide and restore events.

-n  Simple client-side compositing. This is the default mode.

-s  Server-side compositing with hard-edged shadows.

-C  When -c is specified, attempts to avoid painting shadows on panels and docks.

-F  When -f is specified, also enables the fade effect when windows change their opacity, as with transset(1).

-S  Enables synchronous operation. Useful for debugging.

BUGS
Probably. Please report any you find to https://gitlab.freedesktop.org/xorg/app/xcompmgr/.

AUTHORS
Keith Packard, with contributions from Matthew Allum, Eric Anholt, Dan Doel, Thomas Luebking, Matthew Hawn, Ely Levy, Phil Blundell, and Carl Worth.