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qquick3dviewport_p.h
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1// Copyright (C) 2019 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#ifndef QSSGVIEW3D_H
5#define QSSGVIEW3D_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtQuick/QQuickItem>
19#include <QtCore/qurl.h>
20
21#include <QtQuick3D/qtquick3dglobal.h>
22#include <QtQuick3D/private/qquick3dpickresult_p.h>
23#if QT_CONFIG(quick_shadereffect)
24#include <QtQuick/private/qquickshadereffectsource_p.h>
25#endif
26
27#include <QtQuick3DRuntimeRender/private/qssgrenderpickresult_p.h>
28
29#include "qquick3dsceneenvironment_p.h"
30#include "qquick3drenderstats_p.h"
31#include "qquick3dlightmapbaker_p.h"
32
33QT_BEGIN_NAMESPACE
34
35class QSSGView3DPrivate;
36class QQuick3DCamera;
37class QQuick3DSceneEnvironment;
38class QQuick3DNode;
39class QQuick3DSceneRootNode;
40class QQuick3DSceneRenderer;
41class QQuick3DRenderStats;
42class QQuick3DSceneManager;
43
44class SGFramebufferObjectNode;
45class QQuick3DSGRenderNode;
46class QQuick3DSGDirectRenderer;
47
48class Q_QUICK3D_EXPORT QQuick3DViewport : public QQuickItem
49{
50 Q_OBJECT
51 Q_PROPERTY(QQmlListProperty<QObject> data READ data DESIGNABLE false FINAL)
52 Q_PROPERTY(QQuick3DCamera *camera READ camera WRITE setCamera NOTIFY cameraChanged FINAL)
53 Q_PROPERTY(QQuick3DSceneEnvironment *environment READ environment WRITE setEnvironment NOTIFY environmentChanged FINAL)
54 Q_PROPERTY(QQuick3DNode *scene READ scene NOTIFY sceneChanged)
55 Q_PROPERTY(QQuick3DNode *importScene READ importScene WRITE setImportScene NOTIFY importSceneChanged FINAL)
56 Q_PROPERTY(RenderMode renderMode READ renderMode WRITE setRenderMode NOTIFY renderModeChanged FINAL)
57#if QT_CONFIG(quick_shadereffect)
58 Q_PROPERTY(QQuickShaderEffectSource::Format renderFormat READ renderFormat WRITE setRenderFormat NOTIFY renderFormatChanged FINAL REVISION(6, 4))
59#endif
60 Q_PROPERTY(QQuick3DRenderStats *renderStats READ renderStats CONSTANT)
61 Q_PROPERTY(QQmlListProperty<QQuick3DObject> extensions READ extensions FINAL REVISION(6, 6))
62 Q_PROPERTY(int explicitTextureWidth READ explicitTextureWidth WRITE setExplicitTextureWidth NOTIFY explicitTextureWidthChanged FINAL REVISION(6, 7))
63 Q_PROPERTY(int explicitTextureHeight READ explicitTextureHeight WRITE setExplicitTextureHeight NOTIFY explicitTextureHeightChanged FINAL REVISION(6, 7))
64 Q_PROPERTY(QSize effectiveTextureSize READ effectiveTextureSize NOTIFY effectiveTextureSizeChanged FINAL REVISION(6, 7))
65 Q_CLASSINFO("DefaultProperty", "data")
66
67 QML_NAMED_ELEMENT(View3D)
68
69public:
70 enum RenderMode {
71 Offscreen,
72 Underlay,
73 Overlay,
74 Inline
75 };
76 Q_ENUM(RenderMode)
77
78 explicit QQuick3DViewport(QQuickItem *parent = nullptr);
79 ~QQuick3DViewport() override;
80
81 QQmlListProperty<QObject> data();
82
83 QQuick3DCamera *camera() const;
84 QQuick3DSceneEnvironment *environment() const;
85 QQuick3DNode *scene() const;
86 QQuick3DNode *importScene() const;
87 RenderMode renderMode() const;
88#if QT_CONFIG(quick_shadereffect)
89 Q_REVISION(6, 4) QQuickShaderEffectSource::Format renderFormat() const;
90#endif
91 QQuick3DRenderStats *renderStats() const;
92
93 QQuick3DSceneRenderer *createRenderer() const;
94
95 bool isTextureProvider() const override;
96 QSGTextureProvider *textureProvider() const override;
97 void releaseResources() override;
98
99 Q_INVOKABLE QVector3D mapFrom3DScene(const QVector3D &scenePos) const;
100 Q_INVOKABLE QVector3D mapTo3DScene(const QVector3D &viewPos) const;
101
102 Q_INVOKABLE QQuick3DPickResult pick(float x, float y) const;
103 Q_REVISION(6, 8) Q_INVOKABLE QQuick3DPickResult pick(float x, float y, QQuick3DModel *model) const;
104 Q_REVISION(6, 8) Q_INVOKABLE QList<QQuick3DPickResult> pickSubset(float x, float y, const QJSValue &models) const;
105 Q_REVISION(6, 2) Q_INVOKABLE QList<QQuick3DPickResult> pickAll(float x, float y) const;
106 Q_REVISION(6, 2) Q_INVOKABLE QQuick3DPickResult rayPick(const QVector3D &origin, const QVector3D &direction) const;
107 Q_REVISION(6, 2) Q_INVOKABLE QList<QQuick3DPickResult> rayPickAll(const QVector3D &origin, const QVector3D &direction) const;
108
109 Q_REVISION(6, 11) Q_INVOKABLE QQuick3DPickResult rayPick(const QVector3D &origin, const QVector3D &direction, QQuick3DModel *model) const;
110
111 void processPointerEventFromRay(const QVector3D &origin, const QVector3D &direction, QPointerEvent *event) const;
112 bool singlePointPick(QSinglePointEvent *event, const QVector3D &origin, const QVector3D &direction);
113
114 Q_REVISION(6, 8) Q_INVOKABLE void setTouchpoint(QQuickItem *target, const QPointF &position, int pointId, bool active);
115
116 QQuick3DLightmapBaker *maybeLightmapBaker();
117 QQuick3DLightmapBaker *lightmapBaker();
118
119 Q_INVOKABLE void bakeLightmap();
120 Q_REVISION(6, 10) Q_INVOKABLE void denoiseLightmap();
121
122 QQmlListProperty<QQuick3DObject> extensions();
123
124 Q_REVISION(6, 7) int explicitTextureWidth() const;
125 Q_REVISION(6, 7) int explicitTextureHeight() const;
126 Q_REVISION(6, 7) QSize effectiveTextureSize() const;
127
128 // Private helpers
129 [[nodiscard]] bool extensionListDirty() const { return m_extensionListDirty; }
130 [[nodiscard]] const QList<QQuick3DObject *> &extensionList() const { return m_extensions; }
131 void clearExtensionListDirty() { m_extensionListDirty = false; }
132
133 Q_REVISION(6, 7) Q_INVOKABLE void rebuildExtensionList();
134
135 enum class PrivateInstanceType : quint8 { XrViewInstance = 1 };
136 explicit QQuick3DViewport(PrivateInstanceType type, QQuickItem *parent = nullptr);
137 [[nodiscard]] bool isXrViewInstance() const { return m_isXrViewInstance; }
138
139 static void updateCameraForLayer(const QQuick3DViewport &view3D, QSSGRenderLayer &layerNode);
140
141protected:
142 void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) override;
143 QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;
144 void itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value) override;
145
146 bool event(QEvent *) override;
147 void componentComplete() override;
148
149public Q_SLOTS:
150 void setCamera(QQuick3DCamera *camera);
151 void setEnvironment(QQuick3DSceneEnvironment * environment);
152 void setImportScene(QQuick3DNode *inScene);
153 void setRenderMode(QQuick3DViewport::RenderMode renderMode);
154#if QT_CONFIG(quick_shadereffect)
155 Q_REVISION(6, 4) void setRenderFormat(QQuickShaderEffectSource::Format format);
156#endif
157 Q_REVISION(6, 7) void setExplicitTextureWidth(int width);
158 Q_REVISION(6, 7) void setExplicitTextureHeight(int height);
159 void cleanupDirectRenderer();
160
161 // Setting this true enables picking for all the models, regardless of
162 // the models pickable property.
163 void setGlobalPickingEnabled(bool isEnabled);
164
165private Q_SLOTS:
166 void invalidateSceneGraph();
167 void updateInputProcessing();
168 void onReleaseCachedResources();
169
170Q_SIGNALS:
171 void cameraChanged();
172 void environmentChanged();
173 void sceneChanged();
174 void importSceneChanged();
175 void renderModeChanged();
176 Q_REVISION(6, 4) void renderFormatChanged();
177 Q_REVISION(6, 7) void explicitTextureWidthChanged();
178 Q_REVISION(6, 7) void explicitTextureHeightChanged();
179 Q_REVISION(6, 7) void effectiveTextureSizeChanged();
180
181private:
182 void setMultiViewCameras(QQuick3DCamera **firstCamera, int count);
183 template <size_t N>
184 void setMultiViewCameras(QQuick3DCamera *(&cameras)[N])
185 {
186 static_assert(N > 1, "Use setCamera for single view");
187 setMultiViewCameras(cameras, N);
188 }
189
190 friend class QQuick3DExtensionListHelper;
191 friend class QQuick3DXrManager;
192 friend class QQuick3DXrManagerPrivate;
193 friend class QQuick3DRenderLayerHelpers;
194
195 Q_DISABLE_COPY(QQuick3DViewport)
196 struct SubsceneInfo {
197 QQuick3DObject* obj = nullptr;
198 QVarLengthArray<QPointF, 16> eventPointScenePositions;
199 };
200 QQuick3DSceneRenderer *getRenderer() const;
201 void updateDynamicTextures();
202 QSGNode *setupOffscreenRenderer(QSGNode *node);
203 QSGNode *setupInlineRenderer(QSGNode *node);
204 void setupDirectRenderer(RenderMode mode);
205 bool checkIsVisible() const;
206 bool internalPick(QPointerEvent *event, const QVector3D &origin = QVector3D(), const QVector3D &direction = QVector3D()) const;
207 QPair<QQuickItem *, QPointF> getItemAndPosition(const QSSGRenderPickResult &pickResult);
208 QVarLengthArray<QSSGRenderPickResult, 20> getPickResults(QQuick3DSceneRenderer *renderer, const QVector3D &origin, const QVector3D &direction) const;
209 QVarLengthArray<QSSGRenderPickResult, 20> getPickResults(QQuick3DSceneRenderer *renderer, const QEventPoint &eventPoint) const;
210 bool forwardEventToSubscenes(QPointerEvent *event,
211 bool useRayPicking,
212 QQuick3DSceneRenderer *renderer,
213 const QFlatMap<QQuickItem *, SubsceneInfo> &visitedSubscenes) const;
214
215 void processPickedObject(const QSSGRenderPickResult &pickResult,
216 int pointIndex,
217 QPointerEvent *event,
218 QFlatMap<QQuickItem *, SubsceneInfo> &vistedSubscenes) const;
219 QQuickItem *getSubSceneRootItem(QQuick3DMaterial *material) const;
220 QQuick3DPickResult getNearestPickResult(const QVarLengthArray<QSSGRenderPickResult, 20> &pickResults) const;
221 QQuick3DPickResult processPickResult(const QSSGRenderPickResult &pickResult) const;
222 QQuick3DObject *findFrontendNode(const QSSGRenderGraphObject *backendObject) const;
223 QQuick3DSceneManager *findChildSceneManager(QQuick3DObject *inObject, QQuick3DSceneManager *manager = nullptr);
224 void updateSceneManagerForImportScene();
225 QQuick3DCamera *m_camera = nullptr;
226 QVarLengthArray<QQuick3DCamera *, 2> m_multiViewCameras;
227 QQuick3DSceneEnvironment *m_environment = nullptr;
228 mutable QPointer<QQuick3DSceneEnvironment> m_builtInEnvironment;
229 QQuick3DSceneRootNode *m_sceneRoot = nullptr;
230 QQuick3DNode *m_importScene = nullptr;
231 mutable SGFramebufferObjectNode *m_node = nullptr;
232 mutable QQuick3DSGRenderNode *m_renderNode = nullptr;
233 mutable QQuick3DSGDirectRenderer *m_directRenderer = nullptr;
234 bool m_renderModeDirty = false;
235 RenderMode m_renderMode = Offscreen;
236#if QT_CONFIG(quick_shadereffect)
237 QQuickShaderEffectSource::Format m_renderFormat = QQuickShaderEffectSource::RGBA8;
238#endif
239 int m_explicitTextureWidth = 0;
240 int m_explicitTextureHeight = 0;
241 QSize m_effectiveTextureSize;
242 float m_widthMultiplier = 1.0f;
243 float m_heightMultiplier = 1.0f;
244 QQuick3DRenderStats *m_renderStats = nullptr;
245 bool m_enableInputProcessing = false;
246 QQuick3DLightmapBaker *m_lightmapBaker = nullptr;
247 QList<QQuick3DObject *> m_extensions;
248 bool m_extensionListDirty = false;
249 bool m_isXrViewInstance = false;
250
251 struct TouchState {
252 QQuickItem *target = nullptr;
253 QPointF position;
254 bool isPressed = false;
255 };
256 QPointingDevice *m_syntheticTouchDevice = nullptr;
257 QVarLengthArray<TouchState, 2> m_touchState{2};
258
259 QPointer<QQuickItem> m_prevMouseItem = nullptr;
260 QPointF m_prevMousePos;
261
262 Q_QUICK3D_PROFILE_ID
263};
264
265QT_END_NAMESPACE
266
267#endif // QSSGVIEW3D_H
prepareCustomShader
static QByteArray prepareCustomShader(QSSGRenderCustomMaterial *customMaterial, const QSSGShaderCustomMaterialAdapter::StringPairList &uniforms, const QByteArray &snippet, QSSGShaderCache::ShaderType shaderType, QSSGCustomShaderMetaData &meta, bool multiViewCompatible)
Definition qquick3dcustommaterial.cpp:1725
toRhiBlendFactor
static QT_BEGIN_NAMESPACE QRhiGraphicsPipeline::BlendFactor toRhiBlendFactor(QQuick3DCustomMaterial::BlendMode mode)
\qmlproperty url CustomMaterial::vertexShader
Definition qquick3dcustommaterial.cpp:1452
setCustomMaterialFlagsFromShader
static void setCustomMaterialFlagsFromShader(QSSGRenderCustomMaterial *material, const QSSGCustomShaderMetaData &meta)
Definition qquick3dcustommaterial.cpp:1676