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/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
import QtQuick3D 1.15
View3D {
id: sceneView
anchors.fill: parent
property bool usePerspective: false
property alias showSceneLight: sceneLight.visible
property alias showGrid: helperGrid.visible
property alias gridColor: helperGrid.gridColor
property alias sceneHelpers: sceneHelpers
property alias perspectiveCamera: scenePerspectiveCamera
property alias orthoCamera: sceneOrthoCamera
property double cameraZoomFactor: .55;
// Empirical cameraZoomFactor values at which the grid zoom level is doubled. The values are
// approximately uniformally distributed over the non-linear range of cameraZoomFactor.
readonly property var grid_thresholds: [0.55, 1.10, 2.35, 4.9, 10.0, 20.5, 42.0, 85.0, 999999.0]
property var thresIdx: 1
property var thresPerc: 1.0 // percentage of cameraZoomFactor to the current grid zoom threshold (0.0 - 1.0)
camera: usePerspective ? scenePerspectiveCamera : sceneOrthoCamera
onCameraZoomFactorChanged: {
thresIdx = Math.max(1, grid_thresholds.findIndex(v => v > cameraZoomFactor));
thresPerc = (grid_thresholds[thresIdx] - cameraZoomFactor) / (grid_thresholds[thresIdx] - grid_thresholds[thresIdx - 1]);
}
Node {
id: sceneHelpers
HelperGrid {
id: helperGrid
lines: Math.pow(2, grid_thresholds.length - thresIdx - 1);
step: 100 * grid_thresholds[0] * Math.pow(2, thresIdx - 1);
subdivAlpha: thresPerc;
}
PointLight {
id: sceneLight
position: usePerspective ? scenePerspectiveCamera.position
: sceneOrthoCamera.position
quadraticFade: 0
linearFade: 0
}
// Initial camera position and rotation should be such that they look at origin.
// Otherwise EditCameraController._lookAtPoint needs to be initialized to correct
// point.
PerspectiveCamera {
id: scenePerspectiveCamera
z: 600
y: 600
eulerRotation.x: -45
clipFar: 100000
clipNear: 1
}
OrthographicCamera {
id: sceneOrthoCamera
z: 600
y: 600
eulerRotation.x: -45
clipFar: 100000
clipNear: -10000
}
}
}
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