glScale produces a nonuniform scaling along the,, and axes. The three parameters indicate the desired scale factor along each of the three axes. The current matrix (see glMatrixMode ) is multiplied by this scale matrix, and the product replaces the current matrix as if glMultMatrix were called with the following matrix as its argument: x 0 0 0 0 y 0 0 0 0 z 0 0 0 0 1 If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glScale is called are scaled. Use glPushMatrix and glPopMatrix to save and restore the unscaled coordinate system.
If scale factors other than 1 are applied to the modelview matrix and lighting is enabled, lighting often appears wrong. In that case, enable automatic normalization of normals by calling glEnable with the argument GL_NORMALIZE.
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glScale: man2/glScale.xml
glScale produces a nonuniform scaling along the,, and axes. The three parameters indicate the desired scale factor along each of the three axes. The current matrix (see glMatrixMode ) is multiplied by this scale matrix, and the product replaces the current matrix as if glMultMatrix were called with the following matrix as its argument: x 0 0 0 0 y 0 0 0 0 z 0 0 0 0 1 If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glScale is called are scaled. Use glPushMatrix and glPopMatrix to save and restore the unscaled coordinate system.
If scale factors other than 1 are applied to the modelview matrix and lighting is enabled, lighting often appears wrong. In that case, enable automatic normalization of normals by calling glEnable with the argument GL_NORMALIZE.