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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QQUICK3DXRCAMERA_P_H
#define QQUICK3DXRCAMERA_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick3DXr/qtquick3dxrglobal.h>
#include <QObject>
#include <QtQuick3D/private/qquick3dcamera_p.h>
QT_BEGIN_NAMESPACE
class QQuick3DXrOrigin;
class Q_QUICK3DXR_EXPORT QQuick3DXrEyeCamera : public QQuick3DCamera
{
Q_OBJECT
Q_PROPERTY(float leftTangent READ leftTangent WRITE setLeftTangent NOTIFY leftTangentChanged)
Q_PROPERTY(float rightTangent READ rightTangent WRITE setRightTangent NOTIFY rightTangentChanged)
Q_PROPERTY(float upTangent READ upTangent WRITE setUpTangent NOTIFY upTangentChanged)
Q_PROPERTY(float downTangent READ downTangent WRITE setDownTangent NOTIFY downTangentChanged)
Q_PROPERTY(float clipNear READ clipNear WRITE setClipNear NOTIFY clipNearChanged)
Q_PROPERTY(float clipFar READ clipFar WRITE setClipFar NOTIFY clipFarChanged)
public:
explicit QQuick3DXrEyeCamera(QQuick3DXrOrigin *parent = nullptr);
float leftTangent() const;
float rightTangent() const;
float upTangent() const;
float downTangent() const;
float clipNear() const;
float clipFar() const;
public Q_SLOTS:
void setLeftTangent(float leftTangent);
void setRightTangent(float rightTangent);
void setUpTangent(float upTangent);
void setDownTangent(float downTangent);
void setClipNear(float clipNear);
void setClipFar(float clipFar);
void setProjection(const QMatrix4x4 &projection);
Q_SIGNALS:
void leftTangentChanged(float leftTangent);
void rightTangentChanged(float rightTangent);
void upTangentChanged(float upTangent);
void downTangentChanged(float downTangent);
void clipNearChanged(float clipNear);
void clipFarChanged(float clipFar);
public:
QMatrix4x4 m_projection;
protected:
QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *node) override;
private:
enum DirtyFlag : quint8
{
ProjectionDirty = 0x1, // Camera projection matrix needs to be recalculated
ProjectionChanged = 0x2, // A camera projection matrix has changed (no recalculation needed)
ClipChanged = 0x4, // Camera clip planes have changed
};
using DirtyFlagT = std::underlying_type_t<DirtyFlag>;
void markDirty(DirtyFlag flag);
void maybeUpdateProjection();
float m_leftTangent = -0.017455064928218f; // tan(-1)
float m_rightTangent = 0.017455064928218f; // tan(1)
float m_upTangent = 0.017455064928218f; // tan(1)
float m_downTangent = -0.017455064928218f; // tan(-1)
float m_clipNear = 1.0f;
float m_clipFar = 10000.0f;
DirtyFlagT m_dirtyFlags = 0;
};
class Q_QUICK3DXR_EXPORT QQuick3DXrCamera : public QQuick3DNode
{
Q_OBJECT
Q_PROPERTY(float clipNear READ clipNear WRITE setClipNear NOTIFY clipNearChanged FINAL)
Q_PROPERTY(float clipFar READ clipFar WRITE setClipFar NOTIFY clipFarChanged FINAL)
QML_NAMED_ELEMENT(XrCamera)
QML_ADDED_IN_VERSION(6, 8)
public:
explicit QQuick3DXrCamera(QQuick3DXrOrigin *parent = nullptr);
~QQuick3DXrCamera();
float clipNear() const;
float clipFar() const;
public Q_SLOTS:
void setClipNear(float clipNear);
void setClipFar(float clipFar);
Q_SIGNALS:
void clipNearChanged(float clipNear);
void clipFarChanged(float clipFar);
protected:
void itemChange(ItemChange change, const ItemChangeData &data) override;
private:
void syncCameraSettings();
float m_clipNear = 1.0f;
float m_clipFar = 10000.0f;
};
QT_END_NAMESPACE
#endif // QQUICK3DXRCAMERA_P_H
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