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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
54QT_BEGIN_NAMESPACE
55
56namespace Qt3DRender {
57namespace Render {
58
59namespace {
60
61struct TransformUpdate
62{
63 Qt3DCore::QNodeId peerId;
64 QMatrix4x4 worldTransformMatrix;
65};
66
67void 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(t: {.peerId: nodeTransform->peerId(), .worldTransformMatrix: convertToQMatrix4x4(v: 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, node: child, parentTransform: worldTransform, updatedTransforms);
90 }
91}
92
93}
94
95class Q_3DRENDERSHARED_PRIVATE_EXPORT UpdateWorldTransformJobPrivate : public Qt3DCore::QAspectJobPrivate
96{
97public:
98 UpdateWorldTransformJobPrivate() {}
99 ~UpdateWorldTransformJobPrivate() override {}
100
101 void postFrame(Qt3DCore::QAspectManager *manager) override;
102
103 QVector<TransformUpdate> m_updatedTransforms;
104};
105
106UpdateWorldTransformJob::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
114void UpdateWorldTransformJob::setRoot(Entity *root)
115{
116 m_node = root;
117}
118
119void UpdateWorldTransformJob::setManagers(NodeManagers *manager)
120{
121 m_manager = manager;
122}
123
124void 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(manager: m_manager, node: m_node, parentTransform, updatedTransforms&: d->m_updatedTransforms);
141
142 qCDebug(Jobs) << "Exiting" << Q_FUNC_INFO << QThread::currentThread();
143}
144
145void 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 *>(object: manager->lookupNode(id: t.peerId));
151 if (!node)
152 continue;
153 Qt3DCore::QTransformPrivate *dNode =
154 static_cast<Qt3DCore::QTransformPrivate *>(Qt3DCore::QNodePrivate::get(q: node));
155 dNode->setWorldMatrix(t.worldTransformMatrix);
156 }
157}
158
159} // namespace Render
160} // namespace Qt3DRender
161
162QT_END_NAMESPACE
163

source code of qt3d/src/render/jobs/updateworldtransformjob.cpp