GLCOLORPOINTER - Online Linux Manual PageSection : 3G
NAME"glColorPointer − define an array of colors
C SPECIFICATIONvoid glColorPointer( GLint size, GLenum type, GLsizei stride, const GLvoid *ptr )
PARAMETERSsize  Specifies the number of components per color. Must be 3 or 4. The initial value is 4. 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, and ­GL_DOUBLE are accepted. The initial value is ­GL_FLOAT. stride  Specifies the byte offset between consecutive colors. If stride is 0 (the initial value), the colors are understood to be tightly packed in the array. The initial value is 0. ptr  Specifies a pointer to the first component of the first color element in the array.
DESCRIPTION­glColorPointer specifies the location and data of an array of color components to use when rendering. size specifies the number of components per color, and must be 3 or 4. 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. (Single-array storage may be more efficient on some implementations; see ­glInterleavedArrays.) When a color array is specified, size, type, stride, and ptr are saved as client-side state. To enable and disable the color array, call ­glEnableClientState and
­glDisableClientState with the argument ­GL_COLOR_ARRAY. If enabled, the color array is used when ­glDrawArrays, ­glDrawElements, ­glDrawRangeElements, or ­glArrayElement is called.
NOTES­glColorPointer is available only if the GL version is 1.1 or greater. The color array is initially disabled and isn't accessed when ­glArrayElement, ­glDrawArrays, ­glDrawRangeElements, or ­glDrawElements is called. Execution of ­glColorPointer 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. ­glColorPointer is typically implemented on the client side. Color array parameters are client-side state and are therefore not saved or restored by ­glPushAttrib and ­glPopAttrib. Use ­glPushClientAttrib and ­glPopClientAttrib instead.
ERRORS­GL_INVALID_VALUE is generated if size is not 3 or 4. ­GL_INVALID_ENUM is generated if type is not an accepted value. ­GL_INVALID_VALUE is generated if stride is negative.
ASSOCIATED GETS­glIsEnabled with argument ­GL_COLOR_ARRAY
­glGet with argument ­GL_COLOR_ARRAY_SIZE
­glGet with argument ­GL_COLOR_ARRAY_TYPE
­glGet with argument ­GL_COLOR_ARRAY_STRIDE
­glGetPointerv with argument ­GL_COLOR_ARRAY_POINTER
SEE ALSO­glArrayElement(3G), ­glDrawArrays(3G), ­glDrawElements(3G), ­glEdgeFlagPointer(3G), ­glEnable(3G), ­glGetPointerv(3G), ­glIndexPointer(3G), ­glInterleavedArrays(3G), ­glNormalPointer(3G), ­glPopClientAttrib(3G), ­glPushClientAttrib(3G), ­glTexCoordPointer(3G), ­glVertexPointer(3G) 0
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