Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
FBFADE(1)			    BRL-CAD			     FBFADE(1)

NAME
       fbfade -	fade a frame buffer image in or	out

SYNOPSIS
       fbfade [-H] [-f input_image_name] [-s input_square_size]
	      [-w input_width]
	      [-n input_height]	[-S output_square_size]	[-W output_width]
	      [-N output_height]
	      [[-F ] output_frame_buffer_name]

DESCRIPTION
       fbfade gradually	displays an image on a frame buffer, one randomly
       chosen pixel at a time.

   Options
       -H
	   (high resolution) Assumes 1024 by 1024 pixels for default input
	   image size instead of 512 by	512. Explicitly-specified sizes
	   override the	default, and if	actual input image size	is smaller
	   than	requested, the actual size will	be used. If output frame
	   buffer size is not specified, the revised input size	will be
	   requested for output. If actual output frame	buffer size is greater
	   than	requested, only	the lower-left portion of the frame buffer
	   will	be used. Actual	sizes depend on	details	of specific frame
	   buffers.

       -f input_image_name
	   Inputs the image to be displayed from the specified frame buffer or
	   pix(5) file,	instead	of using pure background (which	fades out the
	   image already on the	output frame buffer).

       -s input_square_size
	   Specifies input image width and height.

       -w input_width
	   Specifies input image width.

       -n input_height
	   Specifies input image height.

       -S output_square_size
	   Specifies output frame buffer width and height.

       -W output_width
	   Specifies output frame buffer width.

       -N output_height
	   Specifies output frame buffer height.

       -F output_frame_buffer_name
	   Outputs to the specified frame buffer instead of the	one specified
	   by the FB_FILE environment variable (or the default,	if FB_FILE is
	   not set). If	this is	the last option	specified, the -F is optional.

CAVEAT
       fbfade works best in conjunction	with a frame buffer having very	fast
       access to pixels.

EXAMPLE
       The following shell script can be used to produce a slick slide show:

       fbclear

       for i in	*.pix

       do fbfade -f $i

       sleep 15

       done fbfade

SEE ALSO
       libfb(3), pix(5).

DIAGNOSTICS
       Error messages are intended to be self-explanatory.

AUTHORS
       Douglas A. Gwyn,	BRL/VLD-VMB; Gary S. Moss, BRL/VLD-VMB

COPYRIGHT
       This software is	Copyright (c) 1989-2019	by the United States
       Government as represented by U.S. Army Research Laboratory.

BUG REPORTS
       Reports of bugs or problems should be submitted via electronic mail to
       devs@brlcad.org

BRL-CAD				  03/02/2021			     FBFADE(1)

NAME | SYNOPSIS | DESCRIPTION | CAVEAT | EXAMPLE | SEE ALSO | DIAGNOSTICS | AUTHORS | COPYRIGHT | BUG REPORTS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=fbfade&sektion=1&manpath=FreeBSD+13.0-RELEASE+and+Ports>

home | help