Face Weighted Normals Maxscript

addModifier $ (Edit_Normals ()) ui:on

numNorms = $.Edit_Normals.GetNumNormals()
numFaces = $.Edit_Normals.GetNumFaces()

normalArray = #() --place to store temp info for each normal.

--fill in normalArray with junk data.
for i = 1 to numNorms do
(
append normalArray [0,0,0]
)

-- iterate through all the faces in the mesh. find out which normals belond to this face and then add the weighted value of the face normal to value already in normalArray
for i = 1 to numFaces do
(
curFace = #{i}

connectedNormals = #{}
$.Edit_Normals.ConvertFaceSelection curFace connectedNormals --should now have a bit array of normals connected to current face.
faceNormal = ( in coordsys local polyop.getFaceNormal $ i) * (polyop.getFaceArea $ i) --getweighted normal for current face.
for j in connectedNormals do
(

normalArray[j] = normalArray[j]+faceNormal --add current face value to it.

)


)

--normalize values in normaArray and apply to mesh.
for i = 1 to numNorms do
(
$.Edit_Normals.SetNormalExplicit i
normalArray[i] = normalize normalArray[i]
in coordsys local $.Edit_Normals.SetNormal i normalArray[i]
)