glnormal - Man Page






glNormal(3G)		       OpenGL Reference			  glNormal(3G)



NAME
     glNormal3b, glNormal3d, glNormal3f, glNormal3i, glNormal3s, glNormal3bv,
     glNormal3dv, glNormal3fv, glNormal3iv, glNormal3sv	- 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 (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.





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glNormal(3G)		       OpenGL Reference			  glNormal(3G)



     Normals specified with glNormal need not have unit	length.	 If
     normalization is enabled, then normals specified with glNormal are
     normalized	after transformation.  Normalization is	controlled using
     glEnable and glDisable with the argument GL_NORMALIZE.  By	default,
     normalization is 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
     glIsEnable	with argument GL_NORMALIZE


SEE ALSO
     glBegin, glColor, glIndex,	glTexCoord, glVertex





































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