glSecondaryColorPointer — define an array of secondary colors
void glSecondaryColorPointer( | GLint | size, |
| GLenum | type, | |
| GLsizei | stride, | |
| const GLvoid * | pointer); |
sizeSpecifies the number of components per color. Must be 3.
type
Specifies the data type of each color component in the array.
Symbolic constants
GL_BYTE,
GL_UNSIGNED_BYTE,
GL_SHORT,
GL_UNSIGNED_SHORT,
GL_INT,
GL_UNSIGNED_INT,
GL_FLOAT,
or
GL_DOUBLE
are accepted.
The initial value is GL_FLOAT.
stride
Specifies the byte offset between consecutive colors.
If stride is 0, the colors are understood to be
tightly packed in the array. The initial value is 0.
pointerSpecifies a pointer to the first component of the first color element in the array. The initial value is 0.
glSecondaryColorPointer specifies the location and data format of an array of color components
to use when rendering.
size specifies the number of components per color, and must be 3.
type specifies the data type of each color component, and stride
specifies the byte stride from one color 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 secondary color 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 secondary color vertex array
client-side state (GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING).
When a secondary color array is specified,
size, 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 secondary color array, call glEnableClientState and
glDisableClientState with the argument
GL_SECONDARY_COLOR_ARRAY. If enabled, the secondary color array is used when
glArrayElement, glDrawArrays, glMultiDrawArrays,
glDrawElements, glMultiDrawElements, or glDrawRangeElements
is called.
glSecondaryColorPointer is available only if the GL version is 1.4 or greater.
Secondary colors are not supported for interleaved vertex array formats (see glInterleavedArrays).
The secondary color array is initially disabled and isn't accessed when glArrayElement, glDrawElements, glDrawRangeElements, glDrawArrays, glMultiDrawArrays, or glMultiDrawElements is called.
Execution of glSecondaryColorPointer 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.
glSecondaryColorPointer is typically implemented on the client side.
Secondary color array parameters are client-side state and are therefore not saved or restored by glPushAttrib and glPopAttrib. Use glPushClientAttrib and glPopClientAttrib instead.
GL_INVALID_VALUE is generated if size is not 3.
GL_INVALID_ENUM is generated if type is not an accepted value.
GL_INVALID_VALUE is generated if stride is negative.
glIsEnabled with argument GL_SECONDARY_COLOR_ARRAY
glGet with argument GL_SECONDARY_COLOR_ARRAY_SIZE
glGet with argument GL_SECONDARY_COLOR_ARRAY_TYPE
glGet with argument GL_SECONDARY_COLOR_ARRAY_STRIDE
glGet with argument GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING
glGet with argument GL_ARRAY_BUFFER_BINDING
glGetPointerv with argument GL_SECONDARY_COLOR_ARRAY_POINTER
glArrayElement, glBindBuffer, glColorPointer, glDisableClientState, glDrawArrays, glDrawElements, glDrawRangeElements, glEdgeFlagPointer, glEnableClientState, glFogCoordPointer, glIndexPointer, glInterleavedArrays, glMultiDrawArrays, glMultiDrawElements, glNormalPointer, glPopClientAttrib, glPushClientAttrib, glSecondaryColor, glTexCoordPointer, glVertexAttribPointer, glVertexPointer
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/.