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D3DPRIMITIVETYPE enumeration

Defines the primitives supported by Direct3D.

Syntax


typedef enum D3DPRIMITIVETYPE { 
  D3DPT_POINTLIST      = 1,
  D3DPT_LINELIST       = 2,
  D3DPT_LINESTRIP      = 3,
  D3DPT_TRIANGLELIST   = 4,
  D3DPT_TRIANGLESTRIP  = 5,
  D3DPT_TRIANGLEFAN    = 6,
  D3DPT_FORCE_DWORD    = 0x7fffffff
} D3DPRIMITIVETYPE, *LPD3DPRIMITIVETYPE;

Constants

D3DPT_POINTLIST

Renders the vertices as a collection of isolated points. This value is unsupported for indexed primitives.

D3DPT_LINELIST

Renders the vertices as a list of isolated straight line segments.

D3DPT_LINESTRIP

Renders the vertices as a single polyline.

D3DPT_TRIANGLELIST

Renders the specified vertices as a sequence of isolated triangles. Each group of three vertices defines a separate triangle.

Back-face culling is affected by the current winding-order render state.

D3DPT_TRIANGLESTRIP

Renders the vertices as a triangle strip. The backface-culling flag is automatically flipped on even-numbered triangles.

D3DPT_TRIANGLEFAN

Renders the vertices as a triangle fan.

D3DPT_FORCE_DWORD

Forces this enumeration to compile to 32 bits in size. Without this value, some compilers would allow this enumeration to compile to a size other than 32 bits. This value is not used.

Remarks

Using Triangle Strips or Triangle Fans (Direct3D 9) is often more efficient than using triangle lists because fewer vertices are duplicated.

Requirements

Header

D3D9Types.h

See also

IDirect3DDevice9::DrawIndexedPrimitive
IDirect3DDevice9::DrawIndexedPrimitiveUP
IDirect3DDevice9::DrawPrimitive
IDirect3DDevice9::DrawPrimitiveUP

 

 

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