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/****************************************************************************
**
** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import Qt3D.Core 2.0
import Qt3D.Render 2.0
Entity {
id: root
property real convergence: 2000.0
property real eyeSeparation: 35.0
property real aspectRatio: _window.width / _window.height
property real fieldOfView: 60.0
property real nearPlane: 10.0
property real farPlane: 10000.0
property vector3d viewCenter: Qt.vector3d(0.0, 0.0, 0.0)
property vector3d position: Qt.vector3d(0.0, 0.0, 1.0)
readonly property real _fov2: Math.tan(fieldOfView * Math.PI / 180 * 0.5)
readonly property real top: nearPlane * _fov2
readonly property real a: aspectRatio * _fov2 * convergence
CameraLens {
id: leftEyeLens
projectionType: CameraLens.FrustumProjection
nearPlane : root.nearPlane
farPlane : root.farPlane
left: -(a - eyeSeparation * 0.5) * nearPlane / convergence
right: (a + eyeSeparation * 0.5) * nearPlane / convergence
top: root.top
bottom: -root.top
}
CameraLens {
id: rightEyeLens
projectionType: CameraLens.FrustumProjection
nearPlane : root.nearPlane
farPlane : root.farPlane
left: -(a + eyeSeparation * 0.5) * nearPlane / convergence
right: (a - eyeSeparation * 0.5) * nearPlane / convergence
top: root.top
bottom: -root.top
}
Transform {
id: eyeTransform
matrix: {
var m = Qt.matrix4x4(1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
m.lookAt(root.position, root.viewCenter, Qt.vector3d(0.0, 1.0, 0.0));
return m;
}
}
property Entity leftCamera: Entity {
components: [
leftEyeLens,
eyeTransform
]
}
property Entity rightCamera: Entity {
id: rightCameraEntity
components: [
rightEyeLens,
eyeTransform
]
}
}
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