glNormalPointer man page on OpenBSD

Man page or keyword search:  
man Server   11362 pages
apropos Keyword Search (all sections)
Output format
OpenBSD logo
[printable version]

GLNORMALPOINTER(3G)					   GLNORMALPOINTER(3G)

NAME
       glNormalPointer - define an array of normals

C SPECIFICATION
       void glNormalPointer( GLenum type,
	    GLsizei stride,
	    const GLvoid *ptr )

       delim $$

PARAMETERS
       type   Specifies the data type of each coordinate in the array.
	      Symbolic constants GL_BYTE, GL_SHORT, GL_INT, GL_FLOAT, and
	      GL_DOUBLE are accepted. The initial value is GL_FLOAT.

       stride Specifies the byte offset between consecutive normals. If stride
	      is 0- the initial value-the normals are understood to be tightly
	      packed in the array.  The initial value is 0.

       ptr    Specifies a pointer to the first coordinate of the first normal
	      in the array.  The initial value is 0.

DESCRIPTION
       glNormalPointer specifies the location and data	of an array of normals
       to use when rendering.  type specifies the data type of the normal
       coordinates and stride gives the byte stride from one normal to the
       next, allowing vertices and attributes to be packed into a single array
       or stored in separate arrays.  (Single-array storage may be more
       efficient on some implementations; see glInterleavedArrays.)  When a
       normal array is specified, type, stride, and ptr are saved as
       client-side state.

       To enable and disable the normal array, call glEnableClientState and
       glDisableClientState with the argument GL_NORMAL_ARRAY. If enabled, the
       normal array is used when glDrawArrays, glDrawElements, or
       glArrayElement is called.

       Use glDrawArrays to construct a sequence of primitives (all of the same
       type) from prespecified vertex and vertex attribute arrays.  Use
       glArrayElement to specify primitives by indexing vertices and vertex
       attributes and glDrawElements to construct a sequence of primitives by
       indexing vertices and vertex attributes.

NOTES
       glNormalPointer is available only if the GL version is 1.1 or greater.

       The normal array is initially disabled and isn't accessed when
       glArrayElement, glDrawElements, or glDrawArrays is called.

       Execution of glNormalPointer is not allowed between glBegin and the
       corresponding glEnd, but an error may or may not be generated. If an
       error is not generated, the operation is undefined.

       glNormalPointer is typically implemented on the client side.

       Since the normal array parameters are client-side state, they are not
       saved or restored by glPushAttrib and glPopAttrib.  Use
       glPushClientAttrib and glPopClientAttrib instead.

ERRORS
       GL_INVALID_ENUM is generated if type is not an accepted value.

       GL_INVALID_VALUE is generated if stride is negative.

ASSOCIATED GETS
       glIsEnabled with argument GL_NORMAL_ARRAY
       glGet with argument GL_NORMAL_ARRAY_TYPE
       glGet with argument GL_NORMAL_ARRAY_STRIDE
       glGetPointerv with argument GL_NORMAL_ARRAY_POINTER

SEE ALSO
       glArrayElement(3G), glColorPointer(3G), glDrawArrays(3G),
       glDrawElements(3G), glEdgeFlagPointer(3G), glEnable(3G),
       glGetPointerv(3G), glIndexPointer(3G), glInterleavedArrays(3G),
       glPopClientAttrib(3G), glPushClientAttrib(3G), glTexCoordPointer(3G),
       glVertexPointer(3G)

								 March 1, 2011
[top]

List of man pages available for OpenBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net