/* Copyright (C) 1992-1998 The Geometry Center
 * Copyright (C) 1998-2000 Stuart Levy, Tamara Munzner, Mark Phillips
 *
 * This file is part of Geomview.
 * 
 * Geomview is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 * 
 * Geomview is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with Geomview; see the file COPYING.  If not, write
 * to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
 * USA, or visit http://www.gnu.org.
 */
#ifndef  _QV_SPOT_LIGHT_
#define  _QV_SPOT_LIGHT_

#include <QvSFBool.h>
#include <QvSFColor.h>
#include <QvSFFloat.h>
#include <QvSFVec3f.h>
#include <QvSubNode.h>

class QvSpotLight : public QvNode {

    QV_NODE_HEADER(QvSpotLight);

  public:
    // Fields:
    QvSFBool	on;		// Whether light is on
    QvSFFloat	intensity;	// Source intensity (0 to 1)
    QvSFColor	color;		// RGB source color
    QvSFVec3f	location;	// Source location
    QvSFVec3f	direction;	// Primary direction of illumination
    QvSFFloat	dropOffRate;	// Rate of intensity drop-off from primary
				// direction: 0 = constant intensity,
				// 1 = sharp drop-off
    QvSFFloat	cutOffAngle;	// Angle (in radians) outside of which
				// intensity is zero, measured from
				// edge of cone to other edge
};

#endif /* _QV_SPOT_LIGHT_ */
