window(3G)							    window(3G)

NAME    [Toc]    [Back]

     window - defines a	perspective projection transformation

C SPECIFICATION    [Toc]    [Back]

     void window(left, right, bottom, top, near, far)
     Coord left, right,	bottom,	top, near, far;

PARAMETERS    [Toc]    [Back]

     left     expects x	coordinate of left side	of viewing volume.

     right    expects x	coordinate of right side of viewing volume.

     bottom   expects y	coordinate of bottom of	viewing	volume.

     top      expects y	coordinate of top of viewing volume.

     -near    expects the z coordinate of the near clipping plane.

     -far     expects the z coordinate of the far clipping plane.

DESCRIPTION    [Toc]    [Back]

     window specifies the position and size of the rectangular viewing frustum
     closest to	the eye	(in the	near clipping plane), and the location of the
     far clipping plane.  All objects contained	within this volume are
     projected in perspective onto the screen area that	viewport defines.

     When the system is	in single matrix mode, window loads a matrix onto the
     transformation stack, replacing the current top matrix.  When the system
     is	in viewing, projection,	or texture matrix mode,	window replaces	the
     current Projection	matrix and leaves the ModelView	matrix stack and the
     Texture matrix unchanged.

SEE ALSO    [Toc]    [Back]

     mmode, ortho, perspective,	viewport


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