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39
40#include "expandboundingvolumejob_p.h"
41
42#include <Qt3DRender/private/entity_p.h>
43#include <Qt3DRender/private/renderlogging_p.h>
44#include <Qt3DRender/private/sphere_p.h>
45#include <Qt3DRender/private/job_common_p.h>
46#include <Qt3DRender/private/managers_p.h>
47#include <Qt3DRender/private/nodemanagers_p.h>
48
49#include <QThread>
50
51QT_BEGIN_NAMESPACE
52
53namespace Qt3DRender {
54namespace Render {
55
56namespace {
57
58void expandWorldBoundingVolume(NodeManagers *manager, Entity *node)
59{
60 // Go to the nodes that have the most depth
61 const auto childrenHandles = node->childrenHandles();
62 for (const HEntity &handle : childrenHandles) {
63 Entity *c = manager->renderNodesManager()->data(handle);
64 if (c && c->isEnabled())
65 expandWorldBoundingVolume(manager, node: c);
66 }
67
68 // Then traverse back from leaf to root
69 // Initialize parent bounding volume to be equal to that of the first child
70 if (!childrenHandles.empty()) {
71 Qt3DRender::Render::Sphere *parentBoundingVolume = node->worldBoundingVolumeWithChildren();
72 for (const HEntity &handle : childrenHandles) {
73 Entity *c = manager->renderNodesManager()->data(handle);
74 if (c && c->isEnabled())
75 parentBoundingVolume->expandToContain(sphere: *c->worldBoundingVolumeWithChildren());
76 }
77 }
78}
79
80}
81
82ExpandBoundingVolumeJob::ExpandBoundingVolumeJob()
83 : m_node(nullptr)
84 , m_manager(nullptr)
85{
86 SET_JOB_RUN_STAT_TYPE(this, JobTypes::ExpandBoundingVolume, 0)
87}
88
89void ExpandBoundingVolumeJob::setRoot(Entity *root)
90{
91 m_node = root;
92}
93
94void ExpandBoundingVolumeJob::setManagers(NodeManagers *manager)
95{
96 m_manager = manager;
97}
98
99void ExpandBoundingVolumeJob::run()
100{
101 // Expand worldBoundingVolumeWithChildren of each node that has children by the
102 // bounding volumes of the children.
103
104 // TODO: Implement this using a parallel_for
105 qCDebug(Jobs) << "Entering" << Q_FUNC_INFO << QThread::currentThread();
106 expandWorldBoundingVolume(manager: m_manager, node: m_node);
107 qCDebug(Jobs) << "Exiting" << Q_FUNC_INFO << QThread::currentThread();
108}
109
110} // namespace Render
111} // namespace Qt3DRender
112
113QT_END_NAMESPACE
114

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