Hi
I try move a vertex top on a surface in local coordinates.
there is some of functions:
mapScreentoWorldRay viewPoint –geting a ray
or
mapScreentoWorldRay mouse.pos –geting a ray
or
intersectRayEx meshObj (mapScreentoWorldRay mouse.pos) –geting a rayEx
or
i know one but its only for Editable_Mesh: “getNormal <mesh> <3Point>”
Mabe Im missing something but…
its realy posible get a normal from only one vertex in Editable_Poly?
u can make the ray with the face normal and the verts pos by ur self :
for mesh:
getfacenormal <mesh> <face index integer>
meshop.getvertsusingface <mesh> <#{} face list>
getVert <mesh> <vert_index_integer>
ray <vert pos> <face normal>
for poly:
polyop.getfacenormal <poly> <face index integer>
polyop.getvertsusingface <poly> <#{} face list>
polyop.getvert <poly> <integer vert index>
ray <vert pos> <faceNormal>
Thanks for you replay man.
But mabe Im not teling it clear. I apologize.
i there any technique to get vertex normal from editable poly and
avoid using mesh functions?
like as:
faces = polyOp.getFacesUsingVert $ vert as array
normal = [0,0,0]
for i in faces do normal += (polyOp.getFaceNormal $ i)
normal = normal/faces.count
–this is very close
lol . i like ur explain format . i do it step by step:
theVerts = getvertselection $ -- select the poly here. get vert selection array . #{}
thevertsNormalforU = #()
struct vertinfo (vertindex,normaluNeed)
for i in theverts do
(
local faceofverti = polyop.getfacesusingvert $ #{i}
local faceNormals = for j in faceofverti collect (polyop.getfacenormal $ j)
local averageNormal =[0,0,0]
for k in faceNormals do averageNormal += k
averageNormal /= facenormals.count
averageNormal = normalize averageNormal
local theVertiPos = polyop.getvert $ i
--local theRayi =ray thevertipos averagenormal
append thevertsNormalforu (vertinfo vertindex:i normaluNeed:averageNormal)
)
Thanks again Lan
This technique is look fine for me.
What you think about this?
The normal is based on the faces that use the vertex and the smoothing groups assigned to those faces.