QAttribute

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

Synopsis

Properties

• attributeType

• buffer

• byteOffset

• byteStride

• count

• defaultColorAttributeName

• defaultJointIndicesAttributeName

• defaultJointWeightsAttributeName

• defaultNormalAttributeName

• defaultPositionAttributeName

• defaultTangentAttributeName

• defaultTextureCoordinate1AttributeName

• defaultTextureCoordinate2AttributeName

• defaultTextureCoordinateAttributeName

• divisor

• name

• vertexBaseType

• vertexSize

Functions

• def attributeType ()

• def buffer ()

• def byteOffset ()

• def byteStride ()

• def count ()

• def divisor ()

• def name ()

• def vertexBaseType ()

• def vertexSize ()

Slots

• def setAttributeType (attributeType)

• def setBuffer (buffer)

• def setByteOffset (byteOffset)

• def setByteStride (byteStride)

• def setCount (count)

• def setDivisor (divisor)

• def setName (name)

• def setVertexBaseType (type)

• def setVertexSize (size)

Signals

• def attributeTypeChanged (attributeType)

• def bufferChanged (buffer)

• def byteOffsetChanged (byteOffset)

• def byteStrideChanged (byteStride)

• def countChanged (count)

• def dataSizeChanged (vertexSize)

• def dataTypeChanged (vertexBaseType)

• def divisorChanged (divisor)

• def nameChanged (name)

• def vertexBaseTypeChanged (vertexBaseType)

• def vertexSizeChanged (vertexSize)

Static functions

• def defaultColorAttributeName ()

• def defaultJointIndicesAttributeName ()

• def defaultJointWeightsAttributeName ()

• def defaultNormalAttributeName ()

• def defaultPositionAttributeName ()

• def defaultTangentAttributeName ()

• def defaultTextureCoordinate1AttributeName ()

• def defaultTextureCoordinate2AttributeName ()

• def defaultTextureCoordinateAttributeName ()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description

There are 3 types of attributes.

• VertexAttribute : used to define data to be read on a per vertex basis

• IndexAttribute : used to define vertex indices when indexed draw calls are to be used

• DrawIndirectAttribute : used to specify the DrawIndirect buffer to be used when indirect draw calls are to be used

Note

when an attribute is of type DrawIndirectAttribute , only count, stride and offset are relevant.

When providing your own attributes, it may make sense to name your attribute using helpers such as defaultPositionAttributeName() as that will ensure your geometry will be compatible with picking and the various materials provided in the Qt3DExtras module.

See also

QBuffer

class PySide6.Qt3DCore.Qt3DCore.QAttribute(buf, vertexBaseType, vertexSize, count[, offset=0[, stride=0[, parent=None]]])

PySide6.Qt3DCore.Qt3DCore.QAttribute(buf, name, vertexBaseType, vertexSize, count[, offset=0[, stride=0[, parent=None]]])

PySide6.Qt3DCore.Qt3DCore.QAttribute([parent=None])

Parameters:

• vertexBaseType – VertexBaseType

• vertexSize – int

• count – int

• name – str

• buf – PySide6.Qt3DCore.Qt3DCore.QBuffer

• stride – int

• offset – int

• parent – PySide6.Qt3DCore.Qt3DCore.QNode

Constructs a new QAttribute from buf of type, dataSize, count, offset, and stride with parent.

Constructs a new QAttribute named name from buf of type, dataSize, count, offset, and stride with parent.

Constructs a new QAttribute with parent.

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.attributeType: AttributeType

Holds the attribute type.

Access functions:

• attributeType ()

• setAttributeType (attributeType)

• Signal attributeTypeChanged (attributeType)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.buffer: PySide6.Qt3DCore.Qt3DCore.QBuffer

Holds the buffer.

Access functions:

• buffer ()

• setBuffer (buffer)

• Signal bufferChanged (buffer)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.byteOffset: int

Holds the byte offset.

Access functions:

• byteOffset ()

• setByteOffset (byteOffset)

• Signal byteOffsetChanged (byteOffset)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.byteStride: int

Holds the byte stride.

Access functions:

• byteStride ()

• setByteStride (byteStride)

• Signal byteStrideChanged (byteStride)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.count: int

Holds the count.

Access functions:

• count ()

• setCount (count)

• Signal countChanged (count)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultColorAttributeName: str

Access functions:

• defaultColorAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultJointIndicesAttributeName: str

Access functions:

• defaultJointIndicesAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultJointWeightsAttributeName: str

Access functions:

• defaultJointWeightsAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultNormalAttributeName: str

Access functions:

• defaultNormalAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultPositionAttributeName: str

Access functions:

• defaultPositionAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTangentAttributeName: str

Access functions:

• defaultTangentAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTextureCoordinate1AttributeName: str

Access functions:

• defaultTextureCoordinate1AttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTextureCoordinate2AttributeName: str

Access functions:

• defaultTextureCoordinate2AttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTextureCoordinateAttributeName: str

Access functions:

• defaultTextureCoordinateAttributeName ()

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.divisor: int

Holds the divisor.

Access functions:

• divisor ()

• setDivisor (divisor)

• Signal divisorChanged (divisor)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.name: str

Holds the name.

Access functions:

• name ()

• setName (name)

• Signal nameChanged (name)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.vertexBaseType: VertexBaseType

Holds the data type.

Access functions:

• vertexBaseType ()

• setVertexBaseType (type)

• Signal vertexBaseTypeChanged (vertexBaseType)

property PᅟySide6.Qt3DCore.Qt3DCore.QAttribute.vertexSize: int

Holds the data size, it can only be 1 to 4 units (scalars and vectors), 9 units (3x3 matrices) or 16 units (4x4 matrices).

Access functions:

• vertexSize ()

• setVertexSize (size)

• Signal vertexSizeChanged (vertexSize)

PySide6.Qt3DCore.Qt3DCore.QAttribute.AttributeType

The type of the attribute.

Constant	Description
Qt3DCore.QAttribute.VertexAttribute
Qt3DCore.QAttribute.IndexAttribute
Qt3DCore.QAttribute.DrawIndirectAttribute

PySide6.Qt3DCore.Qt3DCore.QAttribute.VertexBaseType

The type of the data.

Constant	Description
Qt3DCore.QAttribute.Byte
Qt3DCore.QAttribute.UnsignedByte
Qt3DCore.QAttribute.Short
Qt3DCore.QAttribute.UnsignedShort
Qt3DCore.QAttribute.Int
Qt3DCore.QAttribute.UnsignedInt
Qt3DCore.QAttribute.HalfFloat
Qt3DCore.QAttribute.Float
Qt3DCore.QAttribute.Double

PySide6.Qt3DCore.Qt3DCore.QAttribute.attributeType()

Return type:

AttributeType

See also

setAttributeType()

Getter of property attributeType .

PySide6.Qt3DCore.Qt3DCore.QAttribute.attributeTypeChanged(attributeType)

Parameters:

attributeType – AttributeType

Notification signal of property attributeType .

PySide6.Qt3DCore.Qt3DCore.QAttribute.buffer()

Return type:

PySide6.Qt3DCore.Qt3DCore.QBuffer

See also

setBuffer()

Getter of property buffer .

PySide6.Qt3DCore.Qt3DCore.QAttribute.bufferChanged(buffer)

Parameters:

buffer – PySide6.Qt3DCore.Qt3DCore.QBuffer

Notification signal of property buffer .

PySide6.Qt3DCore.Qt3DCore.QAttribute.byteOffset()

Return type:

int

See also

setByteOffset()

Getter of property byteOffset .

PySide6.Qt3DCore.Qt3DCore.QAttribute.byteOffsetChanged(byteOffset)

Parameters:

byteOffset – int

Notification signal of property byteOffset .

PySide6.Qt3DCore.Qt3DCore.QAttribute.byteStride()

Return type:

int

See also

setByteStride()

Getter of property byteStride .

PySide6.Qt3DCore.Qt3DCore.QAttribute.byteStrideChanged(byteStride)

Parameters:

byteStride – int

Notification signal of property byteStride .

PySide6.Qt3DCore.Qt3DCore.QAttribute.count()

Return type:

int

See also

setCount()

Getter of property count .

PySide6.Qt3DCore.Qt3DCore.QAttribute.countChanged(count)

Parameters:

count – int

Notification signal of property count .

PySide6.Qt3DCore.Qt3DCore.QAttribute.dataSizeChanged(vertexSize)

Parameters:

vertexSize – int

The signal is emitted with vertexSize when the dataSize changes.

PySide6.Qt3DCore.Qt3DCore.QAttribute.dataTypeChanged(vertexBaseType)

Parameters:

vertexBaseType – VertexBaseType

The signal is emitted with vertexBaseType when the dataType changed.

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultColorAttributeName()

Return type:

str

QAttribute::defaultColorAttributeName Returns the name of the default color attribute

Getter of property defaultColorAttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultJointIndicesAttributeName()

Return type:

str

QAttribute::defaultJointIndicesAttributeName Returns the name of the default joint indices attribute

Getter of property defaultJointIndicesAttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultJointWeightsAttributeName()

Return type:

str

defaultJointIndicesAttributeName Returns the name of the default joint weights attribute

Getter of property defaultJointWeightsAttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultNormalAttributeName()

Return type:

str

QAttribute::defaultNormalAttributeName Returns the name of the default normal attribute

Getter of property defaultNormalAttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultPositionAttributeName()

Return type:

str

QAttribute::defaultPositionAttributeName Returns the name of the default position attribute

Getter of property defaultPositionAttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTangentAttributeName()

Return type:

str

QAttribute::defaultTangentAttributeName Returns the name of the default tangent attribute

Getter of property defaultTangentAttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTextureCoordinate1AttributeName()

Return type:

str

QAttribute::defaultTextureCoordinate1AttributeName Returns the name of the default attribute for the second layer of texture coordinates

Getter of property defaultTextureCoordinate1AttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTextureCoordinate2AttributeName()

Return type:

str

QAttribute::defaultTextureCoordinate2AttributeName Returns the name of the default attribute for the third layer of texture coordinates

Getter of property defaultTextureCoordinate2AttributeName .

static PySide6.Qt3DCore.Qt3DCore.QAttribute.defaultTextureCoordinateAttributeName()

Return type:

str

QAttribute::defaultTextureCoordinateAttributeName Returns the name of the default texture coordinate attribute

Getter of property defaultTextureCoordinateAttributeName .

PySide6.Qt3DCore.Qt3DCore.QAttribute.divisor()

Return type:

int

See also

setDivisor()

Getter of property divisor .

PySide6.Qt3DCore.Qt3DCore.QAttribute.divisorChanged(divisor)

Parameters:

divisor – int

Notification signal of property divisor .

PySide6.Qt3DCore.Qt3DCore.QAttribute.name()

Return type:

str

See also

setName()

Getter of property name .

PySide6.Qt3DCore.Qt3DCore.QAttribute.nameChanged(name)

Parameters:

name – str

Notification signal of property name .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setAttributeType(attributeType)

Parameters:

attributeType – AttributeType

See also

attributeType()

Setter of property attributeType .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setBuffer(buffer)

Parameters:

buffer – PySide6.Qt3DCore.Qt3DCore.QBuffer

See also

buffer()

Setter of property buffer .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setByteOffset(byteOffset)

Parameters:

byteOffset – int

See also

byteOffset()

Setter of property byteOffset .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setByteStride(byteStride)

Parameters:

byteStride – int

See also

byteStride()

Setter of property byteStride .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setCount(count)

Parameters:

count – int

See also

count()

Setter of property count .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setDivisor(divisor)

Parameters:

divisor – int

See also

divisor()

Setter of property divisor .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setName(name)

Parameters:

name – str

See also

name()

Setter of property name .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setVertexBaseType(type)

Parameters:

type – VertexBaseType

See also

vertexBaseType()

Setter of property vertexBaseType .

PySide6.Qt3DCore.Qt3DCore.QAttribute.setVertexSize(size)

Parameters:

size – int

See also

vertexSize()

Setter of property vertexSize .

PySide6.Qt3DCore.Qt3DCore.QAttribute.vertexBaseType()

Return type:

VertexBaseType

See also

setVertexBaseType()

Getter of property vertexBaseType .

PySide6.Qt3DCore.Qt3DCore.QAttribute.vertexBaseTypeChanged(vertexBaseType)

Parameters:

vertexBaseType – VertexBaseType

Notification signal of property vertexBaseType .

PySide6.Qt3DCore.Qt3DCore.QAttribute.vertexSize()

Return type:

int

See also

setVertexSize()

Getter of property vertexSize .

PySide6.Qt3DCore.Qt3DCore.QAttribute.vertexSizeChanged(vertexSize)

Parameters:

vertexSize – int

Notification signal of property vertexSize .