MirBSD manpage: glScale(3), glScaled(3), glScalef(3)

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


     glScaled, glScalef - multiply the current matrix by a gen-
     eral scaling matrix


     void glScaled( GLdouble x,
                    GLdouble y,
                    GLdouble z )
     void glScalef( GLfloat x,
                    GLfloat y,
                    GLfloat z )


     x, y, z
            Specify scale factors along the x, y, and z axes,


     glScale produces a nonuniform scaling along the x, y, and z
     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 glScale were called with the following matrix as its

                         |  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 nor-
     mals by calling glEnable with the argument GL_NORMALIZE.


     GL_INVALID_OPERATION is generated if glScale is executed
     between the execution of glBegin and the corresponding exe-
     cution of glEnd.

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

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


     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


     glMatrixMode(3G), glMultMatrix(3G), glPushMatrix(3G),
     glRotate(3G), glTranslate(3G)

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

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