glScale
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## Name

glScaled, glScalef — multiply the current matrix by a general scaling matrix

## C Specification

`void `glScaled`` | `(` | `GLdouble `x`, GLdouble `y`, GLdouble `z`);`
`void `glScalef`` | `(` | `GLfloat `x`, GLfloat `y`, GLfloat `z`);`

## Python Specification

``glScaled`` | `(` | ``x`, `y`, `z`) → `None``
``glScalef`` | `(` | ``x`, `y`, `z`) → `None``

## Parameters

`x`, `y`, `z`
  Specify scale factors along the `x`, `y`, and `z` axes, respectively.

## Description

`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 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.

## Notes

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`.

## Errors

`GL_INVALID_OPERATION` is generated if `glScale` 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`

## See Also

glMatrixMode, glMultMatrix, glPushMatrix, glRotate, glTranslate

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