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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #ifndef QQUICK3DSKYMATERIAL_P_H
++ #define QQUICK3DSKYMATERIAL_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 <QtQuick3D/private/qquick3deffect_p.h>
++
++ #include <QVector3D>
++
++ QT_BEGIN_NAMESPACE
++
++ struct QSSGRenderSkyMaterial;
++
++ class Q_QUICK3D_EXPORT QQuick3DSkyMaterial : public QQuick3DObject, public QQuick3DPropertyChangedTracker
++ {
++ Q_OBJECT
++ Q_PROPERTY(int radianceMapSize READ radianceMapSize WRITE setRadianceMapSize NOTIFY radianceMapSizeChanged FINAL REVISION(6, 12))
++ Q_PROPERTY(QUrl fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged FINAL REVISION(6, 12))
++ Q_PROPERTY(QString fragmentShaderCode READ fragmentShaderCode WRITE setFragmentShaderCode NOTIFY
++ fragmentShaderCodeChanged FINAL REVISION(6, 12))
++ Q_PROPERTY(bool enableIBL READ enableIBL WRITE setEnableIBL NOTIFY enableIBLChanged FINAL REVISION(6, 12))
++ Q_PROPERTY(int iblSampleCount READ iblSampleCount WRITE setIblSampleCount NOTIFY iblSampleCountChanged FINAL REVISION(6, 12))
++ Q_PROPERTY(int iblRenderFrames READ iblRenderFrames WRITE setIblRenderFrames NOTIFY iblRenderFramesChanged FINAL REVISION(6, 12))
++ Q_PROPERTY(SkyboxMode skyboxMode READ skyboxMode WRITE setSkyboxMode NOTIFY skyboxModeChanged FINAL REVISION(6, 12))
++
++ QML_NAMED_ELEMENT(SkyMaterial)
++ QML_ADDED_IN_VERSION(6, 12)
++ public:
++ explicit QQuick3DSkyMaterial(QQuick3DObject *parent = nullptr);
++
++ enum class SkyboxMode { Cubemap, ScreenSpaceFull, ScreenSpaceHalf, ScreenSpaceQuarter };
++ Q_ENUM(SkyboxMode)
++
++ Q_REVISION(6, 12) int radianceMapSize() const;
++ Q_REVISION(6, 12) QUrl fragmentShader() const;
++ Q_REVISION(6, 12) bool enableIBL() const;
++ Q_REVISION(6, 12) QString fragmentShaderCode() const;
++ Q_REVISION(6, 12) int iblSampleCount() const;
++ Q_REVISION(6, 12) int iblRenderFrames() const;
++ Q_REVISION(6, 12) SkyboxMode skyboxMode() const;
++
++ public Q_SLOTS:
++ Q_REVISION(6, 12) void setRadianceMapSize(int radianceMapSize);
++ Q_REVISION(6, 12) void setFragmentShader(const QUrl &newFragmentShader);
++ Q_REVISION(6, 12) void setFragmentShaderCode(const QString &newFragmentShaderCode);
++ Q_REVISION(6, 12) void setEnableIBL(bool newEnableIBL);
++ Q_REVISION(6, 12) void setIblSampleCount(int newIblSampleCount);
++ Q_REVISION(6, 12) void setIblRenderFrames(int newIblRenderFrames);
++ Q_REVISION(6, 12) void setSkyboxMode(SkyboxMode skyboxMode);
++
++ Q_SIGNALS:
++ Q_REVISION(6, 12) void radianceMapSizeChanged();
++ Q_REVISION(6, 12) void fragmentShaderChanged();
++ Q_REVISION(6, 12) void fragmentShaderCodeChanged();
++ Q_REVISION(6, 12) void enableIBLChanged();
++ Q_REVISION(6, 12) void iblSampleCountChanged();
++ Q_REVISION(6, 12) void iblRenderFramesChanged();
++ Q_REVISION(6, 12) void skyboxModeChanged();
++
++ protected:
++ QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *node) override;
++ void markTrackedPropertyDirty(QMetaProperty property, DirtyPropertyHint hint) override;
++
++ private:
++ int m_radianceMapSize = 512;
++ QUrl m_fragmentShader;
++
++ enum Dirty : quint8 { FragmentShader = 1 << 0, TrackedProperty = 1 << 1 };
++
++ using DirtyT = std::underlying_type_t<Dirty>;
++
++ void markDirty(Dirty v);
++
++ DirtyT m_dirtyFlag { Dirty::FragmentShader | Dirty::TrackedProperty };
++ bool m_enableIBL = true;
++ int m_iblSampleCount = 32;
++ int m_iblRenderFrames = 0;
++ SkyboxMode m_skyboxMode = SkyboxMode::Cubemap;
++ QString m_fragmentShaderCode;
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // QQUICK3DSKYMATERIAL_P_H