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39
40 #include "updateworldtransformjob_p.h"
41
42 #include <Qt3DCore/qtransform.h>
43 #include <Qt3DCore/private/qtransform_p.h>
44 #include <Qt3DCore/private/qaspectmanager_p.h>
45 #include <Qt3DRender/private/entity_p.h>
46 #include <Qt3DRender/private/transform_p.h>
47 #include <Qt3DRender/private/renderlogging_p.h>
48 #include <Qt3DRender/private/job_common_p.h>
49 #include <Qt3DRender/private/managers_p.h>
50 #include <Qt3DRender/private/nodemanagers_p.h>
51
52 #include <QThread>
53
54 QT_BEGIN_NAMESPACE
55
56 namespace Qt3DRender {
57 namespace Render {
58
59 namespace {
60
61 struct TransformUpdate
62 {
63 Qt3DCore::QNodeId peerId;
64 QMatrix4x4 worldTransformMatrix;
65 };
66
updateWorldTransformAndBounds(NodeManagers * manager,Entity * node,const Matrix4x4 & parentTransform,QVector<TransformUpdate> & updatedTransforms)67 void updateWorldTransformAndBounds(NodeManagers *manager, Entity *node, const Matrix4x4 &parentTransform, QVector<TransformUpdate> &updatedTransforms)
68 {
69 if (!node->isEnabled())
70 return;
71
72 Matrix4x4 worldTransform(parentTransform);
73 Transform *nodeTransform = node->renderComponent<Transform>();
74
75 const bool hasTransformComponent = nodeTransform != nullptr && nodeTransform->isEnabled();
76 if (hasTransformComponent)
77 worldTransform = worldTransform * nodeTransform->transformMatrix();
78
79 if (*(node->worldTransform()) != worldTransform) {
80 *(node->worldTransform()) = worldTransform;
81 if (hasTransformComponent)
82 updatedTransforms.push_back({nodeTransform->peerId(), convertToQMatrix4x4(worldTransform)});
83 }
84
85 const auto childrenHandles = node->childrenHandles();
86 for (const HEntity &handle : childrenHandles) {
87 Entity *child = manager->renderNodesManager()->data(handle);
88 if (child)
89 updateWorldTransformAndBounds(manager, child, worldTransform, updatedTransforms);
90 }
91 }
92
93 }
94
95 class Q_3DRENDERSHARED_PRIVATE_EXPORT UpdateWorldTransformJobPrivate : public Qt3DCore::QAspectJobPrivate
96 {
97 public:
UpdateWorldTransformJobPrivate()98 UpdateWorldTransformJobPrivate() {}
~UpdateWorldTransformJobPrivate()99 ~UpdateWorldTransformJobPrivate() override {}
100
101 void postFrame(Qt3DCore::QAspectManager *manager) override;
102
103 QVector<TransformUpdate> m_updatedTransforms;
104 };
105
UpdateWorldTransformJob()106 UpdateWorldTransformJob::UpdateWorldTransformJob()
107 : Qt3DCore::QAspectJob(*new UpdateWorldTransformJobPrivate())
108 , m_node(nullptr)
109 , m_manager(nullptr)
110 {
111 SET_JOB_RUN_STAT_TYPE(this, JobTypes::UpdateTransform, 0)
112 }
113
setRoot(Entity * root)114 void UpdateWorldTransformJob::setRoot(Entity *root)
115 {
116 m_node = root;
117 }
118
setManagers(NodeManagers * manager)119 void UpdateWorldTransformJob::setManagers(NodeManagers *manager)
120 {
121 m_manager = manager;
122 }
123
run()124 void UpdateWorldTransformJob::run()
125 {
126 // Iterate over each level of hierarchy in our scene
127 // and update each node's world transform from its
128 // local transform and its parent's world transform
129
130 // TODO: Parallelise this on each level using a parallel_for
131 // implementation.
132
133 Q_D(UpdateWorldTransformJob);
134 qCDebug(Jobs) << "Entering" << Q_FUNC_INFO << QThread::currentThread();
135
136 Matrix4x4 parentTransform;
137 Entity *parent = m_node->parent();
138 if (parent != nullptr)
139 parentTransform = *(parent->worldTransform());
140 updateWorldTransformAndBounds(m_manager, m_node, parentTransform, d->m_updatedTransforms);
141
142 qCDebug(Jobs) << "Exiting" << Q_FUNC_INFO << QThread::currentThread();
143 }
144
postFrame(Qt3DCore::QAspectManager * manager)145 void UpdateWorldTransformJobPrivate::postFrame(Qt3DCore::QAspectManager *manager)
146 {
147 const QVector<TransformUpdate> updatedTransforms = std::move(m_updatedTransforms);
148 for (const TransformUpdate &t : updatedTransforms) {
149 Qt3DCore::QTransform *node =
150 qobject_cast<Qt3DCore::QTransform *>(manager->lookupNode(t.peerId));
151 if (!node)
152 continue;
153 Qt3DCore::QTransformPrivate *dNode =
154 static_cast<Qt3DCore::QTransformPrivate *>(Qt3DCore::QNodePrivate::get(node));
155 dNode->setWorldMatrix(t.worldTransformMatrix);
156 }
157 }
158
159 } // namespace Render
160 } // namespace Qt3DRender
161
162 QT_END_NAMESPACE
163