GL_RESCALE_NORMAL_EXT man page on Solaris

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GL_RESCALE_NORMAL_EXT(3gl)			    GL_RESCALE_NORMAL_EXT(3gl)

NAME
       GL_RESCALE_NORMAL_EXT  - specifies that normals must be rescaled before
       they are used in calculations.

DESCRIPTION
       Enabling	 GL_RESCALE_NORMAL_EXT	specifies  that	 normals   should   be
       rescaled	 after	they have been transformed by the modelview matrix and
       before they are used in lighting calculations. The  rescale  factor  is
       chosen such that if unit normals were specified in modeling coordinates
       and the modelview matrix has even scaling (the same value in x, y and z
       directions),  then  the	normals will have unit length after rescaling.
       Using the GL_RESCALE_NORMAL_EXT is more efficient than enabling GL_NOR‐
       MALIZE.

       GL_RESCALE_NORMAL_EXT can be specified in  the <cap> parameter of glEn‐
       able, glDisable, and glIsEnabled,  and  by  the	<pname>	 parameter  of
       glGetBooleanv, glGetIntegerv, glGetFloatv, and glGetDoublev.

SEE ALSO
       glEnable,  glDisable, glIsEnabled, glGetBooleanv, glGetIntegerv, glGet‐
       Floatv, and glGetDoublev.

				   15 Mar 97	    GL_RESCALE_NORMAL_EXT(3gl)
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