座標変換行列の退避・再呼びだし

1.

pushmatrix()  

• 現在の変換行列を保存(push)する

  
  
  

  (FORTRAN)	(C)
  subroutine pushmatrix	pushmatrix()

2.

popmatrix()  

• 変換行列を取り出す(pop)

  
  
  

  (FORTRAN)	(C)
  subroutine popmatrix	popmatrix()