public Transform ComputeDerivatives(
	UV point
)

Public Function ComputeDerivatives ( _
	point As UV _
) As Transform

public:
Transform^ ComputeDerivatives(
	UV^ point
)

Return Value

• Origin is the point on the face (equivalent to Evaluate(UV) );
• BasisX is the tangent vector along the U coordinate (partial derivative with respect to U).
• BasisY is the tangent vector along the V coordinate (partial derivative with respect to V).
• BasisZ is the underlying surface's normal vector. This is not necessarily aligned with the normal vector pointing out of a solid that contains the face, to get that value use ComputeNormal(UV) .