MirBSD manpage: glPopMatrix(3), glPushMatrix(3)

GLPUSHMATRIX(3G)    UNIX Programmer's Manual     GLPUSHMATRIX(3G)


     glPushMatrix, glPopMatrix - push and pop the current matrix


     void glPushMatrix( void )


     void glPopMatrix( void )


     There is a stack of matrices for each of the matrix modes.
     In GL_MODELVIEW mode, the stack depth is at least 32. In the
     other modes, GL_COLOR, const(PROJECTION), and GL_TEXTURE,
     the depth is at least 2. The current matrix in any mode is
     the matrix on the top of the stack for that mode.

     glPushMatrix pushes the current matrix stack down by one,
     duplicating the current matrix. That is, after a
     glPushMatrix call, the matrix on top of the stack is identi-
     cal to the one below it.

     glPopMatrix pops the current matrix stack, replacing the
     current matrix with the one below it on the stack.

     Initially, each of the stacks contains one matrix, an iden-
     tity matrix.

     It is an error to push a full matrix stack, or to pop a
     matrix stack that contains only a single matrix. In either
     case, the error flag is set and no other change is made to
     GL state.


     GL_STACK_OVERFLOW is generated if glPushMatrix is called
     while the current matrix stack is full.

     GL_STACK_UNDERFLOW is generated if glPopMatrix is called
     while the current matrix stack contains only a single

     GL_INVALID_OPERATION is generated if glPushMatrix or
     glPopMatrix is executed between the execution of glBegin and
     the corresponding execution of glEnd.


     glGet with argument GL_MATRIX_MODE
     glGet with argument GL_COLOR_MATRIX
     glGet with argument GL_MODELVIEW_MATRIX

MirBSD #10-current     Printed 2021-12-07                       1

GLPUSHMATRIX(3G)    UNIX Programmer's Manual     GLPUSHMATRIX(3G)

     glGet with argument GL_PROJECTION_MATRIX
     glGet with argument GL_TEXTURE_MATRIX
     glGet with argument GL_COLOR_STACK_DEPTH
     glGet with argument GL_MODELVIEW_STACK_DEPTH
     glGet with argument GL_PROJECTION_STACK_DEPTH
     glGet with argument GL_TEXTURE_STACK_DEPTH
     glGet with argument GL_MAX_MODELVIEW_STACK_DEPTH
     glGet with argument GL_MAX_PROJECTION_STACK_DEPTH
     glGet with argument GL_MAX_TEXTURE_STACK_DEPTH


     glFrustum(3G), glLoadIdentity(3G), glLoadMatrix(3G),
     glMatrixMode(3G), glMultMatrix(3G), glOrtho(3G),
     glRotate(3G), glScale(3G), glTranslate(3G), glViewport(3G)

MirBSD #10-current     Printed 2021-12-07                       2

Generated on 2021-12-07 11:07:08 by $MirOS: src/scripts/roff2htm,v 1.103 2021/01/23 20:24:35 tg Exp $ — This product includes material provided by mirabilos.

These manual pages and other documentation are copyrighted by their respective writers; their sources are available at the project’s CVSweb, AnonCVS and other mirrors. The rest is Copyright © 2002–2021 MirBSD.

This manual page’s HTML representation is supposed to be valid XHTML/1.1; if not, please send a bug report — diffs preferred.