| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QQUICK3DPARTICLEDATA_H |
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| 5 | #define QQUICK3DPARTICLEDATA_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QVector3D> |
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| 19 | #include <private/qglobal_p.h> |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | struct Color4ub { |
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| 24 | uchar r = 255; |
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| 25 | uchar g = 255; |
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| 26 | uchar b = 255; |
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| 27 | uchar a = 255; |
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| 28 | }; |
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| 29 | |
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| 30 | struct Vector3b { |
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| 31 | qint8 x = 0; |
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| 32 | qint8 y = 0; |
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| 33 | qint8 z = 0; |
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| 34 | }; |
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| 35 | |
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| 36 | // Current particle data, only used for currently modified data, so one per system |
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| 37 | struct QQuick3DParticleDataCurrent |
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| 38 | { |
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| 39 | QVector3D position; |
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| 40 | QVector3D velocity; |
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| 41 | QVector3D rotation; |
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| 42 | QVector3D scale; |
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| 43 | Color4ub color; |
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| 44 | }; |
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| 45 | |
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| 46 | // Particle data per particle |
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| 47 | // Not modified after emits |
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| 48 | struct QQuick3DParticleData |
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| 49 | { |
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| 50 | QVector3D startPosition; |
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| 51 | QVector3D startVelocity; |
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| 52 | QVector3D surfaceNormal; |
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| 53 | // Use Vector3b to reduce the memory usage, rotations work with less accuracy. |
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| 54 | // These need to be qint8 and not quint8 as rotations can go either direction. |
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| 55 | |
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| 56 | Vector3b startRotation; |
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| 57 | Vector3b startRotationVelocity; |
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| 58 | Color4ub startColor; |
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| 59 | // Seconds, system time when this particle was emitted |
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| 60 | float startTime = -1.0f; |
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| 61 | // Seconds, particle lifetime |
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| 62 | float lifetime = 0.0f; |
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| 63 | // Unified scaling among axes |
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| 64 | float startSize = 1.0f; |
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| 65 | float endSize = 1.0f; |
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| 66 | // Seconds, sprite sequence animation total time |
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| 67 | float animationTime = -1.0f; |
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| 68 | // Index/id of the particle. Used to get unique random values. |
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| 69 | // Might not be necessary, check later |
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| 70 | int index = 0; |
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| 71 | // Size: 12+12+3+3+4+4+4+4+4+4 = 54 bytes |
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| 72 | bool reversed = false; |
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| 73 | }; |
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| 74 | |
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| 75 | // Data structure for storing bursts |
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| 76 | struct QQuick3DParticleEmitBurstData { |
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| 77 | int amount = 0; |
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| 78 | int time = 0; |
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| 79 | int duration = 0; |
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| 80 | QVector3D position; |
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| 81 | }; |
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| 82 | |
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| 83 | QT_END_NAMESPACE |
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| 84 | |
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| 85 | #endif // QQUICK3DPARTICLEDATA_H |
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| 86 | |
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