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D3DVERTEXELEMENT9 structure

Defines the vertex data layout. Each vertex can contain one or more data types, and each data type is described by a vertex element.

Syntax

Copy

typedef struct D3DVERTEXELEMENT9 {
  WORD Stream;
  WORD Offset;
  BYTE Type;
  BYTE Method;
  BYTE Usage;
  BYTE UsageIndex;
} D3DVERTEXELEMENT9, *LPD3DVERTEXELEMENT9;

Members

Stream: Type: WORD; Stream number.
Offset: Type: WORD; Offset from the beginning of the vertex data to the data associated with the particular data type.
Type: Type: BYTE; The data type, specified as a D3DDECLTYPE. One of several predefined types that define the data size. Some methods have an implied type.
Method: Type: BYTE; The method specifies the tessellator processing, which determines how the tessellator interprets (or operates on) the vertex data. For more information, see D3DDECLMETHOD.
Usage: Type: BYTE; Defines what the data will be used for; that is, the interoperability between vertex data layouts and vertex shaders. Each usage acts to bind a vertex declaration to a vertex shader. In some cases, they have a special interpretation. For example, an element that specifies D3DDECLUSAGE_NORMAL or D3DDECLUSAGE_POSITION is used by the N-patch tessellator to set up tessellation. See D3DDECLUSAGE for a list of the available semantics. D3DDECLUSAGE_TEXCOORD can be used for user-defined fields (which don't have an existing usage defined).
UsageIndex: Type: BYTE; Modifies the usage data to allow the user to specify multiple usage types.

Remarks

Vertex data is defined using an array of D3DVERTEXELEMENT9 structures. Use D3DDECL_END to declare the last element in the declaration.

Requirements

Header	D3D9Types.h

D3DVERTEXELEMENT9 structure

Syntax

Members

Remarks

Requirements

See also