- Qt 6.9
- Qt 3D
- Qt3DCore Namespace
- Qt 6.9.2 Reference Documentation

# Qt3DCore Namespace

Contains classes that are the foundation for Qt 3D simulation framework, as well as classes that provide the ability to render using the Qt 3D framework. More...

Header: | `#include <Qt3DCore>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS 3DCore)` `target_link_libraries(mytarget PRIVATE Qt6::3DCore)`
qmake: | `QT += 3dcore`
Status: | Deprecated

## Namespaces

namespace | Quick

## Classes

class | QAbstractAspect
class | QAbstractFunctor
class | QAbstractSkeleton
class | QArmature
class | QAspectEngine
class | QAspectJob
class | QAttribute
class | QBackendNode
class | QBackendNodeMapper
`(since 6.0)` class | QBoundingVolume
class | QBuffer
class | QComponent
`(since 6.0)` class | QCoreSettings
class | QEntity
class | QGeometry
`(since 6.0)` class | QGeometryView
class | QJoint
class | QNode
class | QNodeId
class | QSkeleton
class | QSkeletonLoader
class | QTransform

## Types

| QAspectJobPtr
| QBackendNodeMapperPtr
| QBufferPtr
| QComponentVector
| QEntityPtr
| QNodeIdVector
| QNodePtr
| QNodeVector

## Functions

qintptr | functorTypeId()
size_t | qHash(Qt3DCore::QNodeId id, size_t seed = 0)
Qt3DCore::QNodeId | qIdForNode(Qt3DCore::QNode *node)
Qt3DCore::QNodeIdVector | qIdsForNodes(const T &nodes)
QDebug | operator<<(QDebug d, Qt3DCore::QNodeId id)

## Detailed Description

## Namespaces

### namespace Qt3DCore::Quick

## Classes

### class QAbstractAspect

QAbstractAspect is the base class for aspects that provide a vertical slice of behavior. More...

### class QAbstractFunctor

QAbstractFunctor is an abstract base class for all functors. More...

### class QAbstractSkeleton

A skeleton contains the joints for a skinned mesh. More...

### class QArmature

Used to calculate skinning transform matrices and set them on shaders. More...

### class QAspectEngine

Responsible for handling all the QAbstractAspect subclasses that have been registered with the scene. More...

### class QAspectJob

The base class for jobs executed in an aspect. More...

### class QAttribute

Defines an attribute and how data should be read from a QBuffer. More...

### class QBackendNode

The base class for all Qt3D backend nodes. More...

### class QBackendNodeMapper

Creates and maps backend nodes to their respective frontend nodes. More...

### class QBoundingVolume

can be used to override the bounding volume of an entity. More...

### class QBuffer

Provides a data store for raw data to later be used as vertices or uniforms. More...

### class QComponent

The base class of scene nodes that can be aggregated by Qt3DCore::QEntity instances as a component. More...

### class QCoreSettings

The QCoreSettings class holds settings related to core data handling process. More...

### class QEntity

Qt3DCore::QEntity is a Qt3DCore::QNode subclass that can aggregate several Qt3DCore::QComponent instances that will specify its behavior. More...

### class QGeometry

Encapsulates geometry. More...

### class QGeometryView

Encapsulates geometry details. More...

### class QJoint

Used to transforms parts of skinned meshes. More...

### class QNode

QNode is the base class of all Qt3D node classes used to build a Qt3D scene. More...

### class QNodeId

Uniquely identifies a QNode. More...

### class QSkeleton

Holds the data for a skeleton to be used with skinned meshes. More...

### class QSkeletonLoader

Used to load a skeleton of joints from file. More...

### class QTransform

Used to perform transforms on meshes. More...

## Type Documentation

### QAspectJobPtr

A shared pointer for QAspectJob.

### QBackendNodeMapperPtr

A shared pointer for QBackendNodeMapper.

### QBufferPtr

### `[alias]` QComponentVector

List of QComponent pointers.

### QEntityPtr

A shared pointer for QEntity.

### `[alias]` QNodeIdVector

A vector of QNodeIds.

### `[alias]` QNodePtr

A shared pointer for QNode.

### `[alias]` QNodeVector

List of QNode pointers.

## Function Documentation

### template <typename T> qintptr Qt3DCore::functorTypeId()

Returns a pointer to the type id of the functor.

### `[constexpr noexcept]` size_t qHash(Qt3DCore::QNodeId id, size_t seed = 0)

Returns hash of node with id and optional seed.

### Qt3DCore::QNodeId qIdForNode(Qt3DCore::QNode *node)

Returns node id for node.

### template <typename T> Qt3DCore::QNodeIdVector qIdsForNodes(const T &nodes)

Returns vector of node ids for nodes.

### QDebug Qt3DCore::operator<<(QDebug d, Qt3DCore::QNodeId id)

<< with d and id. Returns QDebug.