GLDEPTHRANGEF(3G)

    .SH "NAME" glDepthRangef - specify mapping of depth values from normalized device coordinates to window coordinates
    .SH "C SPECIFICATION"

            .HP u void glDepthRangef(GLfloat n, GLfloat f);

    .SH "PARAMETERS"

        .PP n

                    Specifies the mapping of the near clipping plane to window coordinates. The initial value is 0.

            .RE
            .PP f

                        Specifies the mapping of the far clipping plane to window coordinates. The initial value is 1.

                .RE

            .SH "DESCRIPTION"
                .PP After clipping and division by w, depth coordinates range from -1 to 1, corresponding to the near and far clipping planes. glDepthRangef specifies a linear mapping of the normalized depth coordinates in this range to window depth coordinates. If a fixed-point depth representation is used, the parameters n and f are clamped to the range [0 to 1] when computing window z.
                .PP The setting of (0,1) maps the near plane to 0 and the far plane to 1. With this mapping, the depth buffer range is fully utilized.

            .SH "NOTES"
                .PP It is not necessary that n be less than f. Reverse mappings such as n = 1, and f = 0 are acceptable.

            .SH "ASSOCIATED GETS"
                .PP glGet() with argument GL_DEPTH_RANGE

            .SH "API VERSION SUPPORT"

                .TS allbox tab(:); l l l l l. T{ glDepthRangef T}:T{ T}:T{ T}:T{ T}:T{ T}

            .SH "SEE ALSO"
                .PP glDepthFunc(), glPolygonOffset(), glViewport()

            .SH "COPYRIGHT"
                .PP Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2015 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.

COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2015 Khronos Group