glMatrixMode â 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 initial value is GL_MODELVIEW.
+ Additionally, if the ARB_imaging extension is supported,
+ GL_COLOR is also accepted.
+
+ glMatrixMode sets the current matrix mode.
+ mode can assume one of four values:
+
GL_MODELVIEW+ Applies subsequent matrix operations to the modelview matrix stack. +
GL_PROJECTION+ Applies subsequent matrix operations to the projection matrix stack. +
GL_TEXTURE+ Applies subsequent matrix operations to the texture matrix stack. +
GL_COLOR+ Applies subsequent matrix operations to the color matrix stack. +
+ To find out which matrix stack is currently the target of all matrix
+ operations, call glGet with argument GL_MATRIX_MODE. The initial
+ value is GL_MODELVIEW.
+
+ 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.
+
+ glLoadMatrix, + glLoadTransposeMatrix, + glMultMatrix, + glMultTransposeMatrix, + glPopMatrix, + glPushMatrix +
+ Copyright © 1991-2006 + Silicon Graphics, Inc. This document is licensed under the SGI + Free Software B License. For details, see + http://oss.sgi.com/projects/FreeB/. +