Qt3DRender.QAttribute ¶

概要 ¶

详细描述 ¶

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

注意

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 模块。

另请参阅

QBuffer

class PySide2.Qt3DRender.Qt3DRender. QAttribute ( [ parent=None ] ) ¶

PySide2.Qt3DRender.Qt3DRender.QAttribute(buf, vertexBaseType, vertexSize, count[, offset=0[, stride=0[, parent=None]]])

PySide2.Qt3DRender.Qt3DRender.QAttribute(buf, name, vertexBaseType, vertexSize, count[, offset=0[, stride=0[, parent=None]]])

param parent

QNode

param vertexBaseType

VertexBaseType

param buf

QBuffer

param offset

uint

param name

unicode

param stride

uint

param count

uint

param vertexSize

uint

构造新 QAttribute with parent .

构造新 QAttribute from buf of type , dataSize , count , offset ，和 stride with parent .

构造新 QAttribute named name from buf of type , dataSize , count , offset ，和 stride with parent .

PySide2.Qt3DRender.Qt3DRender.QAttribute. AttributeType ¶

The type of the attribute.

常量	描述
Qt3DRender.QAttribute.VertexAttribute
Qt3DRender.QAttribute.IndexAttribute
Qt3DRender.QAttribute.DrawIndirectAttribute

PySide2.Qt3DRender.Qt3DRender.QAttribute. VertexBaseType ¶

The type of the data.

常量	描述
Qt3DRender.QAttribute.Byte
Qt3DRender.QAttribute.UnsignedByte
Qt3DRender.QAttribute.Short
Qt3DRender.QAttribute.UnsignedShort
Qt3DRender.QAttribute.Int
Qt3DRender.QAttribute.UnsignedInt
Qt3DRender.QAttribute.HalfFloat
Qt3DRender.QAttribute.Float
Qt3DRender.QAttribute.Double

PySide2.Qt3DRender.Qt3DRender.QAttribute. attributeType ( ) ¶

返回类型

AttributeType

另请参阅

setAttributeType()

PySide2.Qt3DRender.Qt3DRender.QAttribute. attributeTypeChanged ( attributeType ) ¶

参数

attributeType – AttributeType

PySide2.Qt3DRender.Qt3DRender.QAttribute. buffer ( ) ¶

返回类型

QBuffer

另请参阅

setBuffer()

PySide2.Qt3DRender.Qt3DRender.QAttribute. bufferChanged ( buffer ) ¶

参数

buffer – QBuffer

PySide2.Qt3DRender.Qt3DRender.QAttribute. byteOffset ( ) ¶

返回类型

uint

另请参阅

setByteOffset()

PySide2.Qt3DRender.Qt3DRender.QAttribute. byteOffsetChanged ( byteOffset ) ¶

参数

byteOffset – uint

PySide2.Qt3DRender.Qt3DRender.QAttribute. byteStride ( ) ¶

返回类型

uint

另请参阅

setByteStride()

PySide2.Qt3DRender.Qt3DRender.QAttribute. byteStrideChanged ( byteStride ) ¶

参数

byteStride – uint

PySide2.Qt3DRender.Qt3DRender.QAttribute. count ( ) ¶

返回类型

uint

另请参阅

setCount()

PySide2.Qt3DRender.Qt3DRender.QAttribute. countChanged ( count ) ¶

参数

count – uint

PySide2.Qt3DRender.Qt3DRender.QAttribute. dataSizeChanged ( vertexSize ) ¶

参数

vertexSize – uint

PySide2.Qt3DRender.Qt3DRender.QAttribute. dataTypeChanged ( vertexBaseType ) ¶

参数

vertexBaseType – VertexBaseType

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultColorAttributeName ( ) ¶

返回类型

unicode

Returns the name of the default color attribute

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultJointIndicesAttributeName ( ) ¶

返回类型

unicode

Returns the name of the default joint indices attribute

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultJointWeightsAttributeName ( ) ¶

返回类型

unicode

defaultJointIndicesAttributeName Returns the name of the default joint weights attribute

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultNormalAttributeName ( ) ¶

返回类型

unicode

Returns the name of the default normal attribute

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultPositionAttributeName ( ) ¶

返回类型

unicode

Returns the name of the default position attribute

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultTangentAttributeName ( ) ¶

返回类型

unicode

Returns the name of the default tangent attribute

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultTextureCoordinate1AttributeName ( ) ¶

返回类型

unicode

Returns the name of the default attribute for the second layer of texture coordinates

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultTextureCoordinate2AttributeName ( ) ¶

返回类型

unicode

Returns the name of the default attribute for the third layer of texture coordinates

static PySide2.Qt3DRender.Qt3DRender.QAttribute. defaultTextureCoordinateAttributeName ( ) ¶

返回类型

unicode

Returns the name of the default texture coordinate attribute

PySide2.Qt3DRender.Qt3DRender.QAttribute. divisor ( ) ¶

返回类型

uint

另请参阅

setDivisor()

PySide2.Qt3DRender.Qt3DRender.QAttribute. divisorChanged ( divisor ) ¶

参数

divisor – uint

PySide2.Qt3DRender.Qt3DRender.QAttribute. name ( ) ¶

返回类型

unicode

另请参阅

setName()

PySide2.Qt3DRender.Qt3DRender.QAttribute. nameChanged ( name ) ¶

参数

name – unicode

PySide2.Qt3DRender.Qt3DRender.QAttribute. setAttributeType ( attributeType ) ¶

参数

attributeType – AttributeType

另请参阅

attributeType()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setBuffer ( buffer ) ¶

参数

buffer – QBuffer

另请参阅

buffer()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setByteOffset ( byteOffset ) ¶

参数

byteOffset – uint

另请参阅

byteOffset()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setByteStride ( byteStride ) ¶

参数

byteStride – uint

另请参阅

byteStride()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setCount ( count ) ¶

参数

count – uint

另请参阅

count()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setDataSize ( size ) ¶

参数

size – uint

注意

此函数被弃用。

PySide2.Qt3DRender.Qt3DRender.QAttribute. setDataType ( type ) ¶

参数

type – VertexBaseType

注意

此函数被弃用。

PySide2.Qt3DRender.Qt3DRender.QAttribute. setDivisor ( divisor ) ¶

参数

divisor – uint

另请参阅

divisor()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setName ( name ) ¶

参数

name – unicode

另请参阅

name()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setVertexBaseType ( type ) ¶

参数

type – VertexBaseType

另请参阅

vertexBaseType()

PySide2.Qt3DRender.Qt3DRender.QAttribute. setVertexSize ( size ) ¶

参数

size – uint

另请参阅

vertexSize()

PySide2.Qt3DRender.Qt3DRender.QAttribute. vertexBaseType ( ) ¶

返回类型

VertexBaseType

另请参阅

setVertexBaseType()

PySide2.Qt3DRender.Qt3DRender.QAttribute. vertexBaseTypeChanged ( vertexBaseType ) ¶

参数

vertexBaseType – VertexBaseType

PySide2.Qt3DRender.Qt3DRender.QAttribute. vertexSize ( ) ¶

返回类型

uint

另请参阅

setVertexSize()

PySide2.Qt3DRender.Qt3DRender.QAttribute. vertexSizeChanged ( vertexSize ) ¶

参数

vertexSize – uint