Table of Contents


glClearIndex - specify the clear value for the color index buffers

C Specification

void glClearIndex( GLfloat c )

eqn not supported


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 $2 sup m^-^1$, where $m$ is the number of bits in a color index stored in the frame buffer.


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

See Also


Table of Contents