CONST_D3DPRIMITIVETYPE

The CONST_D3DPRIMITIVETYPE enumeration lists the primitives supported by DrawPrimitive methods.

Enum CONST_D3DPRIMITIVETYPE
    D3DPT_POINTLIST     = 1
    D3DPT_LINELIST      = 2
    D3DPT_LINESTRIP     = 3
    D3DPT_TRIANGLELIST  = 4
    D3DPT_TRIANGLESTRIP = 5
    D3DPT_TRIANGLEFAN   = 6 
End Enum

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 will 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 will fail if the count is less than 2.

D3DPT_TRIANGLELIST

Renders the specified vertices as a sequence of isolated triangles. Each group of 3 vertices defines a separate triangle. Calls using this primitive type will fail if the count is less than 3, or if not evenly divisible by 3.

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

D3DPT_TRIANGLESTRIP

Renders the vertices as a triangle strip. Calls using this primitive type will fail if the count is less than 3. The back-face removal flag is automatically flipped on even numbered triangles.

D3DPT_TRIANGLEFAN

Renders the vertices as a triangle fan. Calls using this primitive type will fail if the count is less than 3.

Remarks

Using triangle strips or fans is often more efficient than using triangle lists, as fewer vertices are duplicated. For a conceptual overview and information about defining triangle strips and fans, see Triangle Strips and Triangle Fans.

See Also

Direct3DDevice7.DrawIndexedPrimitive, Direct3DDevice7.DrawPrimitive, Primitive Types