D3DPRIMITIVETYPE
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.
Header: Declared in D3d8types.h.
See Also
IDirect3DDevice8::DrawIndexedPrimitive, IDirect3DDevice8::DrawIndexedPrimitiveUP, IDirect3DDevice8::DrawPrimitive, IDirect3DDevice8::DrawPrimitiveUP