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

FreeBSD Manual Pages

  
 
  

home | help
ANIM_LOOKAT(nged)	     BRL-CAD User Commands	     ANIM_LOOKAT(nged)

NAME
       anim_lookat - create a view animation script or table which looks from
       an eye point to a specified point.

SYNOPSIS
       anim_lookat [-f #] [-v] in.table	out.script

       anim_lookat - [y	| q] [-v] in.table out.table

DESCRIPTION
       This program takes as input a seven-column animation table consisting
       of time,	an eye point, and a "look-at point," and prints	a view
       animation script	to control the virtual camera. The camera always
       remains "right-side up";	that is, it yaws and pitches but doesn't roll.
       In cases	where the camera looks vertically up or	down, the yaw from the
       previous	frame is retained. This	avoids sudden jumps as much as
       possible.

OPTIONS
       -f#
	   Specify an integer with which to begin numbering frames. The
	   default is 0.

       -y
	   The output will be an animation table rather	than a view animation
	   script. The output table has	7 columns: a time column, three
	   columns representing	position, and three columns representing yaw,
	   pitch, and roll.

       -q
	   The output will be an animation table rather	than a view animation
	   script. The output table has	eight columns: a time column, three
	   position columns, and four columns representing the x,y,z, and w
	   coordinates of an orientation quaternion.

       -v
	   Include the viewsize	in the output script or	table. The viewsize is
	   calculated in every frame as	twice the distance from	the eye	point
	   to the lookat point.	If the output is a table, then the viewsize is
	   printed in the second column.

AUTHOR
       Carl J. Nuzman

COPYRIGHT
       This software is	Copyright (c) 1993-2013	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				  07/08/2017		     ANIM_LOOKAT(nged)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | AUTHOR | COPYRIGHT | BUG REPORTS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=anim_lookat&manpath=FreeBSD+12.0-RELEASE+and+Ports>

home | help