Microsoft Visual Basic® applications set the culling mode by using the D3DRS_CULLMODE render state, which can be set to a member of the CONST_D3DCULL enumeration. By default, Direct3D culls back faces with counterclockwise vertices.

The following code sample illustrates the process of setting the culling mode to cull back faces with clockwise vertices.

' This code example assumes that d3dDevice contains a valid 
' reference to a Direct3DDevice8 object.

' Set the culling state.
Call d3dDevice.SetRenderState(D3DRENDERSTATE_CULLMODE, D3DCULL_CW)