Directx 向量

D3DXVECTOR  u(1.0f , 0.0f , 1.0f);

D3DXVECTOR  v(0.0f , 1.0f , 0.0f);

if(u==v) return true;

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D3DXVECTOR3  u(2.0f,0.0f,1.0f);

D3DXVECTOR3  v(0.0f,-1.0f,5.0f);

D3DXVECTOR3 sum=u+v;

D3DXVECTOR3 difference=u-v;

D3DXVECTOR3 scaledVec=u*10.0f;

float dot=D3DXVec3Dot(&u,&v);            //点积

 

//叉积

D3DXVECTOR3 *D3DXVec3Cross( 

    D3DXVECTOR3 *pOut,

    CONST D3DXVECTOR3  *pV1,

    CONST D3DXVECTOR3  *pV2);