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39
40#ifndef QT3DRENDER_RENDER_CAMERALENS_H
41#define QT3DRENDER_RENDER_CAMERALENS_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <Qt3DRender/private/backendnode_p.h>
55#include <Qt3DCore/private/qnodecommand_p.h>
56#include <Qt3DCore/private/matrix4x4_p.h>
57#include <QRectF>
58
59QT_BEGIN_NAMESPACE
60
61namespace Qt3DRender {
62
63namespace Render {
64
65class EntityManager;
66class CameraManager;
67class Sphere;
68
69class CameraLensFunctor : public Qt3DCore::QBackendNodeMapper
70{
71public:
72 explicit CameraLensFunctor(AbstractRenderer *renderer, QRenderAspect *renderAspect);
73 Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const override;
74 Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const override;
75 void destroy(Qt3DCore::QNodeId id) const override;
76
77private:
78 CameraManager *m_manager;
79 AbstractRenderer *m_renderer;
80 QRenderAspect *m_renderAspect;
81};
82
83class Q_3DRENDERSHARED_PRIVATE_EXPORT CameraLens : public BackendNode
84{
85public:
86 CameraLens();
87 ~CameraLens();
88 void cleanup();
89
90 void setRenderAspect(QRenderAspect* renderAspect);
91
92 Matrix4x4 viewMatrix(const Matrix4x4 &worldTransform);
93
94 void setProjection(const Matrix4x4 &projection);
95 inline Matrix4x4 projection() const { return m_projection; }
96
97 void setExposure(float exposure);
98 inline float exposure() const { return m_exposure; }
99
100 void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) override;
101 void notifySceneBoundingVolume(const Sphere &sphere, Qt3DCore::QNodeCommand::CommandId commandId);
102
103 static bool viewMatrixForCamera(EntityManager *manager, Qt3DCore::QNodeId cameraId,
104 Matrix4x4 &viewMatrix, Matrix4x4 &projectionMatrix);
105
106private:
107 void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) final;
108 void computeSceneBoundingVolume(Qt3DCore::QNodeId entityId,
109 Qt3DCore::QNodeId cameraId,
110 Qt3DCore::QNodeCommand::CommandId commandId);
111
112 QRenderAspect *m_renderAspect;
113 Qt3DCore::QNodeCommand::CommandId m_pendingViewAllCommand;
114 Matrix4x4 m_projection;
115 float m_exposure;
116};
117
118} // namespace Render
119} // namespace Qt3DRender
120
121QT_END_NAMESPACE
122
123#endif // QT3DRENDER_RENDER_CAMERALENS_H
124