GLCLEARINDEX

Section: Misc. Reference Manual Pages (3G)
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NAME

glClearIndex - specify the clear value for the color index buffers

 

C SPECIFICATION

void glClearIndex( GLfloat c )


delim $$  

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 $2 sup m^-^1$, 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  

SEE ALSO

glClear(3G)


 

Index

NAME
C SPECIFICATION
PARAMETERS
DESCRIPTION
ERRORS
ASSOCIATED GETS
SEE ALSO

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