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39
40#include "levelofdetail_p.h"
41#include <Qt3DRender/QLevelOfDetail>
42#include <Qt3DRender/private/qlevelofdetail_p.h>
43#include <Qt3DRender/private/stringtoint_p.h>
44#include <Qt3DRender/QCamera>
45#include <QVariant>
46
47QT_BEGIN_NAMESPACE
48
49using namespace Qt3DCore;
50
51namespace Qt3DRender {
52namespace Render {
53
54LevelOfDetail::LevelOfDetail()
55 : BackendNode(BackendNode::ReadWrite)
56 , m_currentIndex(0)
57 , m_thresholdType(QLevelOfDetail::DistanceToCameraThreshold)
58 , m_volumeOverride()
59{
60}
61
62LevelOfDetail::~LevelOfDetail()
63{
64 cleanup();
65}
66
67void LevelOfDetail::syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime)
68{
69 const QLevelOfDetail *node = qobject_cast<const QLevelOfDetail *>(object: frontEnd);
70 if (!node)
71 return;
72
73 const bool oldEnabled = isEnabled();
74 BackendNode::syncFromFrontEnd(frontEnd, firstTime);
75
76 const Qt3DCore::QNodeId cameraId = Qt3DCore::qIdForNode(node: node->camera());
77 if (cameraId != m_camera) {
78 m_camera = cameraId;
79 markDirty(changes: AbstractRenderer::GeometryDirty);
80 }
81
82 if (node->currentIndex() != m_currentIndex) {
83 m_currentIndex = node->currentIndex();
84 markDirty(changes: AbstractRenderer::GeometryDirty);
85 }
86
87 if (node->thresholdType() != m_thresholdType) {
88 m_thresholdType = node->thresholdType();
89 markDirty(changes: AbstractRenderer::GeometryDirty);
90 }
91
92 if (node->thresholds() != m_thresholds) {
93 m_thresholds = node->thresholds();
94 markDirty(changes: AbstractRenderer::GeometryDirty);
95 }
96
97 if (node->volumeOverride() != m_volumeOverride) {
98 m_volumeOverride = node->volumeOverride();
99 markDirty(changes: AbstractRenderer::GeometryDirty);
100 }
101
102 if (isEnabled() != oldEnabled || firstTime)
103 markDirty(changes: AbstractRenderer::LayersDirty);
104}
105
106void LevelOfDetail::cleanup()
107{
108 QBackendNode::setEnabled(false);
109}
110
111void LevelOfDetail::setCurrentIndex(int currentIndex)
112{
113 if (m_currentIndex != currentIndex)
114 m_currentIndex = currentIndex;
115}
116
117} // namespace Render
118} // namespace Qt3DRender
119
120QT_END_NAMESPACE
121

source code of qt3d/src/render/backend/levelofdetail.cpp