'\" e '\"! eqn | mmdoc '\"macro stdmacro .ds Vn Version 1.2 .ds Dt 24 September 1999 .ds Re Release 1.2.1 .ds Dp Jan 14 18:30 .ds Dm 01 clearinde .ds Xs 34830 3 clearindex.gl .TH GLCLEARINDEX 3G .SH NAME .B "glClearIndex \- specify the clear value for the color index buffers .SH C SPECIFICATION void \f3glClearIndex\fP( GLfloat \fIc\fP ) .nf .fi .EQ delim $$ .EN .SH PARAMETERS .TP \w'\f2c\fP\ \ 'u \f2c\fP Specifies the index used when the color index buffers are cleared. The initial value is 0. .SH DESCRIPTION \%\f3glClearIndex\fP specifies the index used by \%\f3glClear\fP to clear the color index buffers. \f2c\fP is not clamped. Rather, \f2c\fP 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. .SH ERRORS \%\f3GL_INVALID_OPERATION\fP is generated if \%\f3glClearIndex\fP is executed between the execution of \%\f3glBegin\fP and the corresponding execution of \%\f3glEnd\fP. .SH ASSOCIATED GETS \%\f3glGet\fP with argument \%\f3GL_INDEX_CLEAR_VALUE\fP .br \%\f3glGet\fP with argument \%\f3GL_INDEX_BITS\fP .SH SEE ALSO \%\f3glClear(3G)\fP