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Man Pages


Manual Reference Pages  -  GLCLEARINDEX (3)

NAME

glClearIndex - specify the clear value for the color index buffers

CONTENTS

C Specification
Parameters
Description
Errors
Associated Gets
See Also

C SPECIFICATION

void glClearIndex( GLfloat c )

PARAMETERS

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

DESCRIPTION

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 2m-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

SEE ALSO

glClear
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