| Microsoft DirectX 8.1 (C++) |
Defines bit patterns that enable user-defined clipping planes. These macros are defined as a convenience when setting values for the D3DRS_CLIPPLANEENABLE render state.
D3DCLIPPLANE0 (1 << 0) D3DCLIPPLANE1 (1 << 1) D3DCLIPPLANE2 (1 << 2) D3DCLIPPLANE3 (1 << 3) D3DCLIPPLANE4 (1 << 4) D3DCLIPPLANE5 (1 << 5)
User-defined clipping planes are enabled when the DWORD value set in the D3DRS_CLIPPLANEENABLE render state contains one or more set bits (that is, is not 0). The value of the render-state DWORD is not important; the system does not interpret the value as a number. Rather, it parses the DWORD, enabling any clipping plane whose corresponding bit is set. Bit 0 controls the state of the first clipping plane (at index 0), bit 1 the second plane, and so on.
The bit patterns that these macros create can be combined by using a logical OR operation to simultaneously enable multiple clipping planes. Omitting one of these macros from the combination effectively disables the clipping plane at that index.
Header: Declared in D3d8types.h.