Camera Spinning

void Camera::BuildViewMatrix(D3DXMATRIX * matrix, LPDIRECT3DDEVICE9 device)
{	
	if(is_changed)
	{


	D3DXMATRIX mx_TotalRotation;
	D3DXMATRIX mx_AroundRight;
	D3DXMATRIX mx_AroundUp;
	D3DXMATRIX mx_AroundLook;

	// now we use the angles that we have rotated by and
	// put them into matrices

	// rotate around look at
	D3DXMatrixRotationAxis(&mx_AroundLook, &v_LookAt, rad_angle_aroundLook);
	// rotate around right
	D3DXMatrixRotationAxis(&mx_AroundUp, &v_Up, rad_angle_aroundUp);
	// round right
	D3DXMatrixRotationAxis(&mx_AroundRight, &v_Right,rad_angle_aroundRight);

	

	// combine matrices into 1
	D3DXMatrixMultiply(&mx_TotalRotation, &mx_AroundUp, &mx_AroundRight);
	D3DXMatrixMultiply(&mx_TotalRotation, &mx_TotalRotation,&mx_AroundLook);

	D3DXVec3TransformCoord(&v_Right, &v_Right, &mx_TotalRotation );
	D3DXVec3TransformCoord(&v_Up, &v_Up, &mx_TotalRotation );

	D3DXVec3Cross(&v_LookAt, &v_Up, &v_Right);


	D3DXVec3Normalize(&v_Up, &v_Up);
	D3DXVec3Normalize(&v_Right, &v_Right);
	D3DXVec3Normalize(&v_LookAt, &v_LookAt);

	DrawAxii(device);

	// compute the position of the matrix ( bottom row)

	D3DXMatrixIdentity(matrix);

	float viewX, viewY, viewZ;
	viewX = -D3DXVec3Dot(&v_Right, &v_Eye);
	viewY = -D3DXVec3Dot(&v_Up, &v_Eye);
	viewZ = -D3DXVec3Dot(&v_LookAt, &v_Eye);

	(*matrix) = D3DXMATRIX( v_Right.x, v_Up.x, v_LookAt.x, 0,
							v_Right.y, v_Up.y, v_LookAt.y, 0,
							v_Right.z, v_Up.z, v_LookAt.z, 0,
							viewX    , viewY , viewZ   ,   1
						  );

	
					   
	rad_angle_aroundUp    = 0.0f;
	rad_angle_aroundLook  = 0.0f;
	rad_angle_aroundRight = 0.0f;

	is_changed = false;


	} //end if
	

}