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GLNORMAL(3G)			 OpenGL Manual			  GLNORMAL(3G)

NAME
       glNormal - set the current normal vector

C SPECIFICATION
       void glNormal3b(GLbyte nx, GLbyte ny, GLbyte nz);

       void glNormal3d(GLdouble nx, GLdouble ny, GLdouble nz);

       void glNormal3f(GLfloat nx, GLfloat ny, GLfloat nz);

       void glNormal3i(GLint nx, GLint ny, GLint nz);

       void glNormal3s(GLshort nx, GLshort ny, GLshort nz);

PARAMETERS
       nx, ny, nz
	   Specify the x, y, and z coordinates of the new current normal. The
	   initial value of the current normal is the unit vector, (0, 0, 1).

C SPECIFICATION
       void glNormal3bv(const GLbyte * v);

       void glNormal3dv(const GLdouble * v);

       void glNormal3fv(const GLfloat * v);

       void glNormal3iv(const GLint * v);

       void glNormal3sv(const GLshort * v);

PARAMETERS
       v
	   Specifies a pointer to an array of three elements: the x, y, and z
	   coordinates of the new current normal.

DESCRIPTION
       The current normal is set to the given coordinates whenever glNormal is
       issued. Byte, short, or integer arguments are converted to
       floating-point format with a linear mapping that maps the most positive
       representable integer value to 1.0 and the most negative representable
       integer value to -1.0.

       Normals specified with glNormal need not have unit length. If
       GL_NORMALIZE is enabled, then normals of any length specified with
       glNormal are normalized after transformation. If GL_RESCALE_NORMAL is
       enabled, normals are scaled by a scaling factor derived from the
       modelview matrix.  GL_RESCALE_NORMAL requires that the originally
       specified normals were of unit length, and that the modelview matrix
       contain only uniform scales for proper results. To enable and disable
       normalization, call glEnable() and glDisable() with either GL_NORMALIZE
       or GL_RESCALE_NORMAL. Normalization is initially disabled.

NOTES
       The current normal can be updated at any time. In particular, glNormal
       can be called between a call to glBegin() and the corresponding call to
       glEnd().

ASSOCIATED GETS
       glGet() with argument GL_CURRENT_NORMAL

       glIsEnabled() with argument GL_NORMALIZE

       glIsEnabled() with argument GL_RESCALE_NORMAL

SEE ALSO
       glBegin(), glColor(), glIndex(), glMultiTexCoord(), glNormalPointer(),
       glTexCoord(), glVertex()

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

AUTHORS
       opengl.org

opengl.org			  03/16/2013			  GLNORMAL(3G)

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