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Diffstat (limited to 'examples/qt3d/qardboard/QardboardCamera.qml')
-rw-r--r-- | examples/qt3d/qardboard/QardboardCamera.qml | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/examples/qt3d/qardboard/QardboardCamera.qml b/examples/qt3d/qardboard/QardboardCamera.qml new file mode 100644 index 000000000..1912b8a22 --- /dev/null +++ b/examples/qt3d/qardboard/QardboardCamera.qml @@ -0,0 +1,124 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +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: 1. + property real farPlane: 1000.0 + + property vector3d position: Qt.vector3d(0.0, 0.0, 0.0) + property vector3d viewDirection: Qt.vector3d(0.0, 0.0, 1.0) + property vector3d viewUp: Qt.vector3d(0.0, 1.0, 0.0) + property alias viewMatrix: leftEyeTransform.matrix + + 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: leftEyeTransform + + matrix: { + var m = Qt.matrix4x4(); + m.lookAt(root.position, root.position + root.viewDirection, root.viewUp); + return m; + } + } + + Transform { + id: rightEyeTransform + + matrix: leftEyeTransform.matrix + } + + property Entity leftCamera: Entity { + components: [ + leftEyeLens, + leftEyeTransform + ] + } + + property Entity rightCamera: Entity { + id: rightCameraEntity + components: [ + rightEyeLens, + rightEyeTransform + ] + } +} |