Planets QML example for Qt3D

+ Improved earth clouds
- Some weirdness with alpha, easily visible with rings. Might be the
  textures, although the alpha on them seems fine with image viewer.
- Earth clouds seem to have the alpha issue as well.

Change-Id: Ibdfa49472790d3fc797e269b52986b71d93876f2
Reviewed-by: Pasi Keränen <pasi.keranen@digia.com>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

1 files changed, 166 insertions, 0 deletions

diff --git a/examples/qt3d/planets-qml/planets.js b/examples/qt3d/planets-qml/planets.js
new file mode 100644
index 000000000..1de683c21
--- /dev/null
+++ b/examples/qt3d/planets-qml/planets.js
@@ -0,0 +1,166 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+var SUN = 0;
+var MERCURY = 1;
+var VENUS = 2;
+var EARTH = 3;
+var MARS = 4;
+var JUPITER = 5;
+var SATURN = 6;
+var URANUS = 7;
+var NEPTUNE = 8;
+var NUM_SELECTABLE_PLANETS = 9;
+var MOON = 9;
+var SOLAR_SYSTEM = 100;
+
+var planets = []; // Planet data info
+
+var solarDistance = 2600000;
+var saturnOuterRadius = 120.700;
+var uranusOuterRadius = 40;
+
+var auScale = 149597.870700; // AU in thousands of kilometers
+
+function loadPlanetData() {
+
+    // Planet Data
+    // radius - planet radius
+    // tilt - planet axis angle
+    // N1/2 - longitude of the ascending node
+    // i1/2 - inclination to the ecliptic (plane of the Earth's orbit)
+    // w1/2 - argument of perihelion
+    // a1/2 - semi-major axis, or mean distance from Sun
+    // e1/2 - eccentricity (0=circle, 0-1=ellipse, 1=parabola)
+    // M1/2 - mean anomaly (0 at perihelion; increases uniformly with time)
+    // period - sidereal rotation period
+    // centerOfOrbit - the planet in the center of the orbit
+    // (orbital elements based on http://www.stjarnhimlen.se/comp/ppcomp.html)
+
+    var sun = { radius: 694.439, tilt: 63.87, period: 25.05, x: 0, y: 0, z: 0,
+        roll: 0 };
+    planets.push(sun);
+    var mercury = {
+        radius: 2.433722, tilt: 0.04, N1: 48.3313, N2: 0.0000324587,
+        i1: 7.0047, i2: 0.0000000500, w1: 29.1241, w2: 0.0000101444,
+        a1: 0.387098, a2: 0, e1: 0.205635, e2: 0.000000000559,
+        M1: 168.6562, M2: 4.0923344368, period: 58.646, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(mercury);
+    var venus = {
+        radius: 6.046079, tilt: 177.36, N1: 76.6799, N2: 0.0000246590,
+        i1: 3.3946, i2: 0.0000000275, w1: 54.8910, w2: 0.0000138374,
+        a1: 0.723330, a2: 0, e1: 0.006773, e2: -0.000000001302,
+        M1: 48.0052, M2: 1.6021302244, period: 243.0185, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(venus);
+    var earth = {
+        radius: 6.371, tilt: 25.44, N1: 174.873, N2: 0,
+        i1: 0.00005, i2: 0, w1: 102.94719, w2: 0,
+        a1: 1, a2: 0, e1: 0.01671022, e2: 0,
+        M1: 357.529, M2: 0.985608, period: 0.997, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(earth);
+    var mars = {
+        radius: 3.389372, tilt: 25.19, N1: 49.5574, N2: 0.0000211081,
+        i1: 1.8497, i2: -0.0000000178, w1: 286.5016, w2: 0.0000292961,
+        a1: 1.523688, a2: 0, e1: 0.093405, e2: 0.000000002516,
+        M1: 18.6021, M2: 0.5240207766, period: 1.025957, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(mars);
+    var jupiter = {
+        radius: 71.41254, tilt: 3.13, N1: 100.4542, N2: 0.0000276854,
+        i1: 1.3030, i2: -0.0000001557, w1: 273.8777, w2: 0.0000164505,
+        a1: 5.20256, a2: 0, e1: 0.048498, e2: 0.000000004469,
+        M1: 19.8950, M2: 0.0830853001, period: 0.4135, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(jupiter);
+    var saturn = {
+        radius: 60.19958, tilt: 26.73, N1: 113.6634, N2: 0.0000238980,
+        i1: 2.4886, i2: -0.0000001081, w1: 339.3939, w2: 0.0000297661,
+        a1: 9.55475, a2: 0, e1: 0.055546, e2: -0.000000009499,
+        M1: 316.9670, M2: 0.0334442282, period: 0.4395, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(saturn);
+    var uranus = {
+        radius: 25.5286, tilt: 97.77, N1: 74.0005, N2: 0.000013978,
+        i1: 0.7733, i2: 0.000000019, w1: 96.6612, w2: 0.000030565,
+        a1: 19.18171, a2: -0.0000000155, e1: 0.047318, e2: 0.00000000745,
+        M1: 142.5905, M2: 0.011725806, period: 0.71833, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(uranus);
+    var neptune = {
+        radius: 24.73859, tilt: 28.32, N1: 131.7806, N2: 0.000030173,
+        i1: 1.7700, i2: -0.000000255, w1: 272.8461, w2: 0.000006027,
+        a1: 30.05826, a2: 0.00000003313, e1: 0.008606, e2: 0.00000000215,
+        M1: 260.2471, M2: 0.005995147, period: 0.6713, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: SUN
+    };
+    planets.push(neptune);
+    var moon = {
+        radius: 1.5424, tilt: 28.32, N1: 125.1228, N2: -0.0529538083,
+        i1: 5.1454, i2: 0, w1: 318.0634, w2: 0.1643573223,
+        a1: 0.273, a2: 0, e1: 0.054900, e2: 0,
+        M1: 115.3654, M2: 13.0649929509, period: 27.321582, x: 0, y: 0, z: 0,
+        roll: 0, centerOfOrbit: EARTH
+    };
+    planets.push(moon);
+
+    return planets;
+}
+
+function getOuterRadius(planet) {
+    var outerRadius = solarDistance;
+    if (planet !== SOLAR_SYSTEM) {
+        outerRadius = planets[planet]["radius"];
+        if (planet === SATURN) {
+            outerRadius =+ saturnOuterRadius;
+        } else if (planet === URANUS) {
+            outerRadius =+ uranusOuterRadius;
+        } else if (planet === SUN) {
+            outerRadius = planets[planet]["radius"] / 100;
+        }
+    }
+
+    return outerRadius;
+}