glClearIndex

glClearIndex: specify the clear value for the color index buffers.

C Specification

void glClearIndex(
    GLfloat	 c)

Parameters

c: Specifies the index used when the color index buffers are cleared. The initial value is 0.

glClearIndex specifies the index used by glClear to clear the color index buffers. c is not clamped. Rather, c is converted to a fixed-point value with unspecified precision to the right of the binary point. The integer part of this value is then masked with 2^m

1, where m is the number of bits in a color index stored in the frame buffer.

Errors

GL_INVALID_OPERATION is generated if glClearIndex is executed between the execution of glBegin and the corresponding execution of glEnd.

Associated Gets

glGet with argument GL_INDEX_CLEAR_VALUE
glGet with argument GL_INDEX_BITS

glClearIndex

C Specification

Parameters

Description

Errors

Associated Gets

See Also