D3DPRIMITIVETYPE

  • [アーティクル]

This enumeration defines the primitives supported by Microsoft® Direct3D®.

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;

Constants

  • D3DPT_POINTLIST
    Renders the vertices as a collection of isolated points.

  • D3DPT_LINELIST
    Renders the vertices as a list of isolated straight line segments. Calls using this primitive type fail if the count is less than 2 or is odd.

  • D3DPT_LINESTRIP
    Renders the vertices as a single polyline. Calls using this primitive type fail if the count is less than 2.

  • D3DPT_TRIANGLELIST
    Renders the specified vertices as a sequence of isolated triangles. Each group of three vertices defines a separate triangle.

    Backface 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. This value is not used.

Remarks

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

Requirements

OS Versions: Windows CE .NET 4.0 and later.
Header: D3d8types.h.

See Also

IDirect3DDevice8::DrawIndexedPrimitive | IDirect3DDevice8::DrawIndexedPrimitiveUP | IDirect3DDevice8::DrawPrimitive | IDirect3DDevice8::DrawPrimitiveUP

 Last updated on Thursday, April 08, 2004

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