Description of a single element of the input layout. More...

Public Types
enum	FREQUENCY : Int32 { FREQUENCY_UNDEFINED = 0, FREQUENCY_PER_VERTEX, FREQUENCY_PER_INSTANCE, FREQUENCY_NUM_FREQUENCIES }
	Input frequency. More...

Public Member Functions
	LayoutElement (Uint32 _InputIndex=0, Uint32 _BufferSlot=0, Uint32 _NumComponents=0, VALUE_TYPE _ValueType=VT_FLOAT32, Bool _IsNormalized=True, Uint32 _RelativeOffset=0, FREQUENCY _Frequency=FREQUENCY_PER_VERTEX, Uint32 _InstanceDataStepRate=1)
	Initializes the structure.

Public Attributes
Uint32	InputIndex
	Input index of the element, which is specified in the vertex shader.

Uint32	BufferSlot
	Buffer slot index that this element is read from.

Uint32	NumComponents
	Number of components in the element. Allowed values are 1, 2, 3, and 4.

VALUE_TYPE	ValueType
	Type of the element components, see Diligent::VALUE_TYPE for details.

Bool	IsNormalized
	For signed and unsigned integer value types (VT_INT8, VT_INT16, VT_INT32, VT_UINT8, VT_UINT16, VT_UINT32) indicates if the value should be normalized to [-1,+1] or [0, 1] range respectively. For floating point types (VT_FLOAT16 and VT_FLOAT32), this member is ignored.

Uint32	RelativeOffset
	Relative offset, in bytes, to the element bits. If this value is zero, the offset will be computed automatically assuming that all previous elements in the same buffer slot a tightly packed. Overlapping elements are not allowed.

Uint32	InstanceDataStepRate
	The number of instances to draw using the same per-instance data before advancing in the buffer by one element.

Detailed Description

Description of a single element of the input layout.

Member Enumeration Documentation

Input frequency.

Enumerator
FREQUENCY_UNDEFINED	Frequency is undefined.
FREQUENCY_PER_VERTEX	Input data is per-vertex data.
FREQUENCY_PER_INSTANCE	Input data is per-instance data.
FREQUENCY_NUM_FREQUENCIES	Helper value that stores the total number of frequencies in the enumeration.