Index for Section 3G

Alphabetical listing for G

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glScale(3G)
NAME
  glScale, glScaled, glScalef - multiply the current matrix by a general
  scaling matrix

SYNOPSIS
  void glScaled(
	  GLdouble x,
	  GLdouble y,
	  GLdouble z );

  void glScalef(
	  GLfloat x,
	  GLfloat y,
	  GLfloat z );

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

Index for Section 3G

Alphabetical listing for G

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