Hello Qt Quick 3D Example
// Copyright (C) 2020 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include <QtQuick3D/qquick3dinstancing.h> class ImageInstanceTable : public QQuick3DInstancing { Q_OBJECT QML_ELEMENT Q_PROPERTY(int gridSize READ gridSize WRITE setGridSize NOTIFY gridSizeChanged) Q_PROPERTY(float gridSpacing READ gridSpacing WRITE setGridSpacing NOTIFY gridSpacingChanged) Q_PROPERTY(QString image READ image WRITE setImage NOTIFY imageChanged) public: explicit ImageInstanceTable(QQuick3DObject *parent = nullptr); ~ImageInstanceTable() override; int gridSize() const; float gridSpacing() const; QString image() const; public slots: void setGridSize(int gridSize); void setGridSpacing(float gridSpacing); void setImage(QString image); signals: void gridSizeChanged(int gridSize); void gridSpacingChanged(float gridSpacing); void imageChanged(QString image); protected: QByteArray getInstanceBuffer(int *instanceCount) override; private: int m_instanceCount = 0; QByteArray m_instanceData; bool m_dirty = true; int m_gridSize = 0; float m_gridSpacing = 100; QString m_imageSource; };