Index for Section 3G

Alphabetical listing for G

Bottom of page

glPopMatrix(3G)
NAME
  glPopMatrix, glPushMatrix - push and pop the current matrix stack

SYNOPSIS
  void glPopMatrix(
	  void );

DESCRIPTION
  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 identical 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 identity 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 option is set and
  no other change is made to GL state.

ERRORS
  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 matrix.

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

ASSOCIATED GETS
       glGet() with argument GL_MATRIX_MODE
       glGet() with argument GL_COLOR_MATRIX
       glGet() with argument GL_MODELVIEW_MATRIX
       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

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

Index for Section 3G

Alphabetical listing for G

Top of page