glFogCoordPointer man page on Oracle
[printable version]
GLFOGCOORDPOINTER(3G) OpenGL Manual GLFOGCOORDPOINTER(3G)
NAME
glFogCoordPointer - define an array of fog coordinates
C SPECIFICATION
void glFogCoordPointer(GLenum type, GLsizei stride, GLvoid * pointer);
PARAMETERS
type
Specifies the data type of each fog coordinate. Symbolic constants
GL_FLOAT, or GL_DOUBLE are accepted. The initial value is GL_FLOAT.
stride
Specifies the byte offset between consecutive fog coordinates. If
stride is 0, the array elements are understood to be tightly
packed. The initial value is 0.
pointer
Specifies a pointer to the first coordinate of the first fog
coordinate in the array. The initial value is 0.
DESCRIPTION
glFogCoordPointer specifies the location and data format of an array of
fog coordinates to use when rendering. type specifies the data type of
each fog coordinate, and stride specifies the byte stride from one fog
coordinate to the next, allowing vertices and attributes to be packed
into a single array or stored in separate arrays.
If a non-zero named buffer object is bound to the GL_ARRAY_BUFFER
target (see glBindBuffer()) while a fog coordinate array is specified,
pointer is treated as a byte offset into the buffer object's data
store. Also, the buffer object binding (GL_ARRAY_BUFFER_BINDING) is
saved as fog coordinate vertex array client-side state
(GL_FOG_COORD_ARRAY_BUFFER_BINDING).
When a fog coordinate array is specified, type, stride, and pointer are
saved as client-side state, in addition to the current vertex array
buffer object binding.
To enable and disable the fog coordinate array, call
glEnableClientState() and glDisableClientState() with the argument
GL_FOG_COORD_ARRAY. If enabled, the fog coordinate array is used when
glDrawArrays(), glMultiDrawArrays(), glDrawElements(),
glMultiDrawElements(), glDrawRangeElements(), or glArrayElement() is
called.
NOTES
glFogCoordPointer is available only if the GL version is 1.4 or
greater.
Fog coordinates are not supported for interleaved vertex array formats
(see glInterleavedArrays()).
The fog coordinate array is initially disabled and isn't accessed when
glArrayElement(), glDrawElements(), glDrawRangeElements(),
glDrawArrays(), glMultiDrawArrays(), or glMultiDrawElements() is
called.
Execution of glFogCoordPointer is not allowed between the execution of
glBegin() and the corresponding execution of glEnd(), but an error may
or may not be generated. If no error is generated, the operation is
undefined.
glFogCoordPointer is typically implemented on the client side with no
protocol.
Fog coordinate array parameters are client-side state and are therefore
not saved or restored by glPushAttrib() and glPopAttrib(). Use
glPushClientAttrib() and glPopClientAttrib() instead.
ERRORS
GL_INVALID_ENUM is generated if type is not either GL_FLOAT or
GL_DOUBLE.
GL_INVALID_VALUE is generated if stride is negative.
ASSOCIATED GETS
glIsEnabled() with argument GL_FOG_COORD_ARRAY
glGet() with argument GL_FOG_COORD_ARRAY_STRIDE
glGet() with argument GL_FOG_COORD_ARRAY_TYPE
glGet() with argument GL_FOG_COORD_ARRAY_BUFFER_BINDING
glGet() with argument GL_ARRAY_BUFFER_BINDING
glGetPointerv() with argument GL_FOG_COORD_ARRAY_POINTER
SEE ALSO
glArrayElement(), glBindBuffer(), glColorPointer(),
glDisableClientState(), glDrawArrays(), glDrawElements(),
glDrawRangeElements(), glEdgeFlagPointer(), glEnableClientState(),
glFogCoord(), glIndexPointer(), glInterleavedArrays(),
glMultiDrawArrays(), glMultiDrawElements(), glNormalPointer(),
glPopClientAttrib(), glPushClientAttrib(), glSecondaryColorPointer(),
glTexCoordPointer(), glVertexAttribPointer(), glVertexPointer()
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 04/29/2014 GLFOGCOORDPOINTER(3G)
[top]
List of man pages available for Oracle
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]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
|
Vote for polarhome
|