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Man Pages


Manual Reference Pages  -  GLCOLORPOINTER (3)

NAME

glColorPointer - define an array of colors

CONTENTS

C Specification
Parameters
Description
Notes
Errors
Associated Gets
See Also

C SPECIFICATION

void glColorPointer( GLint size,

                   GLenum type,
                   GLsizei stride,
                   const GLvoid *pointer )

PARAMETERS

size Specifies the number of components per color. Must be 3 or 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.
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.
pointer Specifies a pointer to the first component of the first color element in the array.

DESCRIPTION

glColorPointer 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 or 4. type specifies the data type of each color component, and stride specifies the byte stride from one color to the next allowing vertexes 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 pointer 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, or glArrayElement is called.

NOTES

glColorPointer 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, 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.

ERRORS

GL_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 GETS

glIsEnabled 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 ALSO

glArrayElement, glDrawArrays, glDrawElements, glEdgeFlagPointer,
glEnable, glGetPointerv, glIndexPointer, glInterleavedArrays, glNormalPointer, glPopClientAttrib, glPushClientAttrib, glTexCoordPointer, glVertexPointer
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GLCOLORPOINTER (-->)

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