Qt Quick 3D - Simple Skinning Example

/**************************************************************************** ** ** Copyright (C) 2020 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the examples 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/
#ifndef SKINGEOMETRY_H #define SKINGEOMETRY_H #include <QtQuick3D/qquick3d.h> #include <QtQuick3D/qquick3dgeometry.h> #include <QVector3D> #include <QtCore/QList> class SkinGeometry : public QQuick3DGeometry { Q_OBJECT QML_NAMED_ELEMENT(SkinGeometry) Q_PROPERTY(QList<QVector3D> positions READ positions WRITE setPositions NOTIFY positionsChanged) Q_PROPERTY(QList<qint32> joints READ joints WRITE setJoints NOTIFY jointsChanged) Q_PROPERTY(QList<float> weights READ weights WRITE setWeights NOTIFY weightsChanged) Q_PROPERTY(QList<quint32> indexes READ indexes WRITE setIndexes NOTIFY indexesChanged) public: SkinGeometry(QQuick3DObject *parent = nullptr); QList<QVector3D> positions() const; QList<qint32> joints() const; QList<float> weights() const; QList<quint32> indexes() const; public Q_SLOTS: void setPositions(const QList<QVector3D> &positions); void setJoints(const QList<qint32> &joints); void setWeights(const QList<float> &weights); void setIndexes(const QList<quint32> &indexes); Q_SIGNALS: void positionsChanged(); void jointsChanged(); void weightsChanged(); void indexesChanged(); protected: QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *node) override; private: QList<QVector3D> m_positions; QList<qint32> m_joints; QList<float> m_weights; QList<quint32> m_indexes; bool m_vertexDirty = false; bool m_indexDirty = false; QByteArray m_vertexBuffer; QByteArray m_indexBuffer; }; #endif // SKINGEOMETRY_H