QCamera¶

The QCamera class defines a view point through which the scene will be rendered. More…

Synopsis¶

Functions¶

def aspectRatio ()
def bottom ()
def exposure ()
def farPlane ()
def fieldOfView ()
def left ()
def lens ()
def nearPlane ()
def pan (angle)
def pan (angle, axis)
def panAboutViewCenter (angle)
def panAboutViewCenter (angle, axis)
def panRotation (angle)
def position ()
def projectionMatrix ()
def projectionType ()
def right ()
def roll (angle)
def rollAboutViewCenter (angle)
def rollRotation (angle)
def rotate (q)
def rotateAboutViewCenter (q)
def rotation (angle, axis)
def tilt (angle)
def tiltAboutViewCenter (angle)
def tiltRotation (angle)
def top ()
def transform ()
def translate (vLocal[, option=Qt3DRender.QCamera.CameraTranslationOption.TranslateViewCenter])
def translateWorld (vWorld[, option=Qt3DRender.QCamera.CameraTranslationOption.TranslateViewCenter])
def upVector ()
def viewCenter ()
def viewMatrix ()
def viewVector ()

Slots¶

def setAspectRatio (aspectRatio)
def setBottom (bottom)
def setExposure (exposure)
def setFarPlane (farPlane)
def setFieldOfView (fieldOfView)
def setLeft (left)
def setNearPlane (nearPlane)
def setPosition (position)
def setProjectionMatrix (projectionMatrix)
def setProjectionType (type)
def setRight (right)
def setTop (top)
def setUpVector (upVector)
def setViewCenter (viewCenter)
def viewAll ()
def viewEntity (entity)
def viewSphere (center, radius)

Signals¶

def aspectRatioChanged (aspectRatio)
def bottomChanged (bottom)
def exposureChanged (exposure)
def farPlaneChanged (farPlane)
def fieldOfViewChanged (fieldOfView)
def leftChanged (left)
def nearPlaneChanged (nearPlane)
def positionChanged (position)
def projectionMatrixChanged (projectionMatrix)
def projectionTypeChanged (projectionType)
def rightChanged (right)
def topChanged (top)
def upVectorChanged (upVector)
def viewCenterChanged (viewCenter)
def viewMatrixChanged ()
def viewVectorChanged (viewVector)

Detailed Description¶

class PySide6.Qt3DRender.Qt3DRender.QCamera([parent=None])¶

Parameters: parent – PySide6.Qt3DCore.Qt3DCore.QNode

Creates a new QCamera instance with the specified parent.

PySide6.Qt3DRender.Qt3DRender.QCamera.CameraTranslationOption¶

This enum specifies how camera view center is translated

Constant

Description

Qt3DRender.QCamera.TranslateViewCenter

Translate the view center causing the view direction to remain the same

Qt3DRender.QCamera.DontTranslateViewCenter

Don’t translate the view center causing the view direction to change

PySide6.Qt3DRender.Qt3DRender.QCamera.aspectRatio()¶

Return type: float

Holds the current aspect ratio.

PySide6.Qt3DRender.Qt3DRender.QCamera.aspectRatioChanged(aspectRatio)¶

Parameters: aspectRatio – float

PySide6.Qt3DRender.Qt3DRender.QCamera.bottom()¶

Return type: float

Holds the current bottom of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.bottomChanged(bottom)¶

Parameters: bottom – float

PySide6.Qt3DRender.Qt3DRender.QCamera.exposure()¶

Return type: float

Holds the current exposure of the camera.

The default value is 0.0.

The MetalRoughMaterial in Qt 3D Extras is currently the only provided material that makes use of camera exposure. Negative values will cause the material to be darker, and positive values will cause it to be lighter.

Custom materials may choose to interpret the value differently.

PySide6.Qt3DRender.Qt3DRender.QCamera.exposureChanged(exposure)¶

Parameters: exposure – float

PySide6.Qt3DRender.Qt3DRender.QCamera.farPlane()¶

Return type: float

Holds the current camera far plane. Objects that are farther from the camera than the will not be rendered.

PySide6.Qt3DRender.Qt3DRender.QCamera.farPlaneChanged(farPlane)¶

Parameters: farPlane – float

PySide6.Qt3DRender.Qt3DRender.QCamera.fieldOfView()¶

Return type: float

Holds the current vertical field of view in degrees.

Along with aspectRatio , this property determines how much of the scene is visible to the camera. In that respect you might think of it as analogous to choosing a wide angle (wide horizontal field of view) or telephoto (narrow horizontal field of view) lens depending on how much of a scene you want to capture.

is only relevant when projectionType is PerspectiveProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.fieldOfViewChanged(fieldOfView)¶

Parameters: fieldOfView – float

PySide6.Qt3DRender.Qt3DRender.QCamera.left()¶

Return type: float

Holds the current left of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.leftChanged(left)¶

Parameters: left – float

PySide6.Qt3DRender.Qt3DRender.QCamera.lens()¶

Return type: PySide6.Qt3DRender.Qt3DRender.QCameraLens

Holds the QCameraLens component of the camera.

PySide6.Qt3DRender.Qt3DRender.QCamera.nearPlane()¶

Return type: float

Holds the current camera near plane. Objects that are closer to the camera than the will not be rendered.

PySide6.Qt3DRender.Qt3DRender.QCamera.nearPlaneChanged(nearPlane)¶

Parameters: nearPlane – float

PySide6.Qt3DRender.Qt3DRender.QCamera.pan(angle)¶

Parameters: angle – float

Adjusts the pan angle of the camera by angle in degrees.

PySide6.Qt3DRender.Qt3DRender.QCamera.pan(angle, axis)

Parameters

angle – float
axis – PySide6.QtGui.QVector3D

Adjusts the pan angle of the camera by angle in degrees on a chosen axis.

PySide6.Qt3DRender.Qt3DRender.QCamera.panAboutViewCenter(angle)¶

Parameters: angle – float

Adjusts the camera pan about view center by angle in degrees.

PySide6.Qt3DRender.Qt3DRender.QCamera.panAboutViewCenter(angle, axis)

Parameters

angle – float
axis – PySide6.QtGui.QVector3D

Adjusts the camera pan about view center by angle in degrees on axis.

PySide6.Qt3DRender.Qt3DRender.QCamera.panRotation(angle)¶

Parameters: angle – float
Return type: PySide6.QtGui.QQuaternion

Returns the calculated pan rotation in relation to the angle in degrees taken in to adjust the camera’s pan or left/right rotation on the Y axis.

PySide6.Qt3DRender.Qt3DRender.QCamera.position()¶

Return type: PySide6.QtGui.QVector3D

Holds the camera’s position in coordinates relative to the parent entity.

PySide6.Qt3DRender.Qt3DRender.QCamera.positionChanged(position)¶

Parameters: position – PySide6.QtGui.QVector3D

PySide6.Qt3DRender.Qt3DRender.QCamera.projectionMatrix()¶

Return type: PySide6.QtGui.QMatrix4x4

Holds the current projection matrix of the camera.

PySide6.Qt3DRender.Qt3DRender.QCamera.projectionMatrixChanged(projectionMatrix)¶

Parameters: projectionMatrix – PySide6.QtGui.QMatrix4x4

PySide6.Qt3DRender.Qt3DRender.QCamera.projectionType()¶

Return type: ProjectionType

Holds the type of the camera projection. The default value is PerspectiveProjection .

OrthographicProjection - Parallel lines appear parallel. Objects appear the same size regardless of distance.

PerspectiveProjection - Parallel lines appear to meet in the distance. Objects appear to shrink the farther they are from the camera.

FrustumProjection

CustomProjection

See also

ProjectionType

PySide6.Qt3DRender.Qt3DRender.QCamera.projectionTypeChanged(projectionType)¶

Parameters: projectionType – ProjectionType

PySide6.Qt3DRender.Qt3DRender.QCamera.right()¶

Return type: float

Holds the current right of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.rightChanged(right)¶

Parameters: right – float

PySide6.Qt3DRender.Qt3DRender.QCamera.roll(angle)¶

Parameters: angle – float

Adjusts the camera roll by angle in degrees.

PySide6.Qt3DRender.Qt3DRender.QCamera.rollAboutViewCenter(angle)¶

Parameters: angle – float

Adjusts the camera roll about view center by angle in degrees.

PySide6.Qt3DRender.Qt3DRender.QCamera.rollRotation(angle)¶

Parameters: angle – float
Return type: PySide6.QtGui.QQuaternion

Returns the calculated roll rotation in relation to the angle in degrees taken in to adjust the camera’s roll or lean left/right rotation on the Z axis.

PySide6.Qt3DRender.Qt3DRender.QCamera.rotate(q)¶

Parameters: q – PySide6.QtGui.QQuaternion

Rotates the camera with the use of a Quaternion in q.

PySide6.Qt3DRender.Qt3DRender.QCamera.rotateAboutViewCenter(q)¶

Parameters: q – PySide6.QtGui.QQuaternion

Rotates the camera about the view center with the use of a Quaternion in q.

PySide6.Qt3DRender.Qt3DRender.QCamera.rotation(angle, axis)¶

Parameters

angle – float
axis – PySide6.QtGui.QVector3D

Return type

PySide6.QtGui.QQuaternion

Returns the calculated rotation in relation to the angle in degrees and chosen axis taken in.

PySide6.Qt3DRender.Qt3DRender.QCamera.setAspectRatio(aspectRatio)¶

Parameters: aspectRatio – float

Holds the current aspect ratio.

PySide6.Qt3DRender.Qt3DRender.QCamera.setBottom(bottom)¶

Parameters: bottom – float

Holds the current bottom of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.setExposure(exposure)¶

Parameters: exposure – float

Holds the current exposure of the camera.

The default value is 0.0.

The MetalRoughMaterial in Qt 3D Extras is currently the only provided material that makes use of camera exposure. Negative values will cause the material to be darker, and positive values will cause it to be lighter.

Custom materials may choose to interpret the value differently.

PySide6.Qt3DRender.Qt3DRender.QCamera.setFarPlane(farPlane)¶

Parameters: farPlane – float

Holds the current camera far plane. Objects that are farther from the camera than the will not be rendered.

PySide6.Qt3DRender.Qt3DRender.QCamera.setFieldOfView(fieldOfView)¶

Parameters: fieldOfView – float

Holds the current vertical field of view in degrees.

Along with aspectRatio , this property determines how much of the scene is visible to the camera. In that respect you might think of it as analogous to choosing a wide angle (wide horizontal field of view) or telephoto (narrow horizontal field of view) lens depending on how much of a scene you want to capture.

is only relevant when projectionType is PerspectiveProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.setLeft(left)¶

Parameters: left – float

Holds the current left of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.setNearPlane(nearPlane)¶

Parameters: nearPlane – float

Holds the current camera near plane. Objects that are closer to the camera than the will not be rendered.

PySide6.Qt3DRender.Qt3DRender.QCamera.setPosition(position)¶

Parameters: position – PySide6.QtGui.QVector3D

Holds the camera’s position in coordinates relative to the parent entity.

PySide6.Qt3DRender.Qt3DRender.QCamera.setProjectionMatrix(projectionMatrix)¶

Parameters: projectionMatrix – PySide6.QtGui.QMatrix4x4

Holds the current projection matrix of the camera.

PySide6.Qt3DRender.Qt3DRender.QCamera.setProjectionType(type)¶

Parameters: type – ProjectionType

Holds the type of the camera projection. The default value is PerspectiveProjection .

OrthographicProjection - Parallel lines appear parallel. Objects appear the same size regardless of distance.

PerspectiveProjection - Parallel lines appear to meet in the distance. Objects appear to shrink the farther they are from the camera.

FrustumProjection

CustomProjection

See also

ProjectionType

PySide6.Qt3DRender.Qt3DRender.QCamera.setRight(right)¶

Parameters: right – float

Holds the current right of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.setTop(top)¶

Parameters: top – float

Holds the current top of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.setUpVector(upVector)¶

Parameters: upVector – PySide6.QtGui.QVector3D

Holds the camera’s up vector in coordinates relative to the parent entity.

The up vector indicates which direction the top of the camera is facing. Think of taking a picture: after positioning yourself and pointing the camera at your target, you might rotate the camera left or right, giving you a portrait or landscape (or angled!) shot. allows you to control this type of movement.

PySide6.Qt3DRender.Qt3DRender.QCamera.setViewCenter(viewCenter)¶

Parameters: viewCenter – PySide6.QtGui.QVector3D

Holds the camera’s view center in coordinates relative to the parent entity.

Intuitively, the is the location the camera is pointing at.

PySide6.Qt3DRender.Qt3DRender.QCamera.tilt(angle)¶

Parameters: angle – float

Adjusts the tilt angle of the camera by angle in degrees.

PySide6.Qt3DRender.Qt3DRender.QCamera.tiltAboutViewCenter(angle)¶

Parameters: angle – float

Adjusts the camera tilt about view center by angle in degrees.

PySide6.Qt3DRender.Qt3DRender.QCamera.tiltRotation(angle)¶

Parameters: angle – float
Return type: PySide6.QtGui.QQuaternion

Returns the calculated tilt rotation in relation to the angle in degrees taken in to adjust the camera’s tilt or up/down rotation on the X axis.

PySide6.Qt3DRender.Qt3DRender.QCamera.top()¶

Return type: float

Holds the current top of the camera.

This property is only relevant when projectionType is OrthographicProjection .

PySide6.Qt3DRender.Qt3DRender.QCamera.topChanged(top)¶

Parameters: top – float

PySide6.Qt3DRender.Qt3DRender.QCamera.transform()¶

Return type: PySide6.Qt3DCore.Qt3DCore.QTransform

Holds the QTransform component of the camera.

PySide6.Qt3DRender.Qt3DRender.QCamera.translate(vLocal[, option=Qt3DRender.QCamera.CameraTranslationOption.TranslateViewCenter])¶

Parameters

vLocal – PySide6.QtGui.QVector3D
option – CameraTranslationOption

Translates the camera’s position and its view vector by vLocal in local coordinates. The option allows for toggling whether the view center should be translated.

PySide6.Qt3DRender.Qt3DRender.QCamera.translateWorld(vWorld[, option=Qt3DRender.QCamera.CameraTranslationOption.TranslateViewCenter])¶

Parameters

vWorld – PySide6.QtGui.QVector3D
option – CameraTranslationOption

Translates the camera’s position and its view vector by vWorld in world coordinates. The option allows for toggling whether the view center should be translated.

PySide6.Qt3DRender.Qt3DRender.QCamera.upVector()¶

Return type: PySide6.QtGui.QVector3D

Holds the camera’s up vector in coordinates relative to the parent entity.

The up vector indicates which direction the top of the camera is facing. Think of taking a picture: after positioning yourself and pointing the camera at your target, you might rotate the camera left or right, giving you a portrait or landscape (or angled!) shot. allows you to control this type of movement.

PySide6.Qt3DRender.Qt3DRender.QCamera.upVectorChanged(upVector)¶

Parameters: upVector – PySide6.QtGui.QVector3D

PySide6.Qt3DRender.Qt3DRender.QCamera.viewAll()¶

Rotates and moves the camera so that it’s viewCenter is the center of the scene’s bounding volume and the entire scene fits in the view port.

Note

Only works if the lens is in perspective or orthographic projection mode.

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QCamera¶

Synopsis¶

Functions¶

Slots¶

Signals¶

Detailed Description¶

Constant	Description
Qt3DRender.QCamera.TranslateViewCenter	Translate the view center causing the view direction to remain the same
Qt3DRender.QCamera.DontTranslateViewCenter	Don’t translate the view center causing the view direction to change