OpenGL man pages
glMatrixMode - specify which matrix is the current matrix
void glMatrixMode( GLenum mode )
mode Specifies which matrix stack is the target for subsequent matrix
operations. Three values are accepted: GL_MODELVIEW, GL_PROJECTION,
and GL_TEXTURE. The default value is GL_MODELVIEW.
glMatrixMode sets the current matrix mode. mode can assume one of three
GL_MODELVIEW Applies subsequent matrix operations to the modelview
GL_PROJECTION Applies subsequent matrix operations to the projection
GL_TEXTURE Applies subsequent matrix operations to the texture
GL_INVALID_ENUM is generated if mode is not an accepted value.
GL_INVALID_OPERATION is generated if glMatrixMode is executed between the
execution of glBegin and the corresponding execution of glEnd.
glGet with argument GL_MATRIX_MODE
Fri Dec 6 11:18:03 EST 1996
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