D3DVERTEX 型は、「未トランスフォーム未ライティングの頂点」を定義する (正規方向ベクトルでのモデル座標)。
Type D3DVERTEX nx As Single ny As Single nz As Single tu As Single tv As Single x As Single y As Single z As Single End Type
D3DLVERTEX、D3DTLVERTEX