'\" 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 matrixmod .ds Xs 9532 4 matrixmode.gl .TH GLMATRIXMODE 3G .SH NAME .B "glMatrixMode \- specify which matrix is the current matrix .SH C SPECIFICATION void \f3glMatrixMode\fP( GLenum \fImode\fP ) .nf .fi .SH PARAMETERS .TP \w'\f2mode\fP\ \ 'u \f2mode\fP Specifies which matrix stack is the target for subsequent matrix operations. Three values are accepted: \%\f3GL_MODELVIEW\fP, \%\f3GL_PROJECTION\fP, and \%\f3GL_TEXTURE\fP. The initial value is \%\f3GL_MODELVIEW\fP. .TE Additionally, if the \%\f3GL_ARB_imaging\fP extension is supported, \%\f3GL_COLOR\fP is also accepted. .SH DESCRIPTION \%\f3glMatrixMode\fP sets the current matrix mode. \f2mode\fP can assume one of four values: .TP 25 \%\f3GL_MODELVIEW\fP Applies subsequent matrix operations to the modelview matrix stack. .TP \%\f3GL_PROJECTION\fP Applies subsequent matrix operations to the projection matrix stack. .TP \%\f3GL_TEXTURE\fP Applies subsequent matrix operations to the texture matrix stack. .TP \%\f3GL_COLOR\fP Applies subsequent matrix operations to the color matrix stack. .P To find out which matrix stack is currently the target of all matrix operations, call \%\f3glGet\fP with argument \%\f3GL_MATRIX_MODE\fP. The initial value is \%\f3GL_MODELVIEW\fP. .SH ERRORS \%\f3GL_INVALID_ENUM\fP is generated if \f2mode\fP is not an accepted value. .P \%\f3GL_INVALID_OPERATION\fP is generated if \%\f3glMatrixMode\fP is executed between the execution of \%\f3glBegin\fP and the corresponding execution of \%\f3glEnd\fP. .SH ASSOCIATED GETS \%\f3glGet\fP with argument \%\f3GL_MATRIX_MODE\fP .SH SEE ALSO \%\f3glLoadMatrix(3G)\fP, \%\f3glPushMatrix(3G)\fP