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D3DDDIARG_SETCLIPPLANE structure (d3dumddi.h)

  • Article

The D3DDDIARG_SETCLIPPLANE structure describes a clip plane.

Syntax

typedef struct _D3DDDIARG_SETCLIPPLANE {
  [in] UINT  Index;
       FLOAT Plane[4];
} D3DDDIARG_SETCLIPPLANE;

Members

[in] Index

The index of the clipping plane for which the plane equation coefficients are set.

[in] Plane[4]

A four-element array of the coefficients A, B, C, and D, in that order, in the general plane equation for the clipping plane.

Remarks

The general plane equation in standard form is Ax + By + Cz + Dw = 0. A point with homogeneous coordinates (x, y, z, w) is visible in the half-space of this plane if Ax + By + Cz + Dw >= 0. Points that exist on or behind the clipping plane are clipped from the scene. That is, points for which Ax + By + Cz + Dw < 0 are clipped.

Requirements

Requirement Value
Minimum supported client Available in Windows Vista and later versions of the Windows operating systems.
Header d3dumddi.h (include D3dumddi.h)

See also

SetClipPlane