| DirectX SDK |
The results of the projection matrix determine the clipping volume, in projection space. Direct3D defines the clipping volume in projection space as:
In the preceding formulas, Xc, Yc, Zc, and Wc represent the vertex coordinates after the projection transformation is applied. Any vertices that have an x, y, or z component outside these ranges are clipped, if clipping is enabled (the default behavior).
With the exception of vertex buffers, applications enable or disable clipping by way of the D3DRENDERSTATE_CLIPPING render state. Clipping information for vertex buffers is generated during processing, for more information see Processing Vertices.
With the exception of vertex buffers, applications enable or disable clipping by way of the D3DRENDERSTATE_CLIPPING render state. Clipping information for vertex buffers is generated during processing, for more information see Processing Vertices.