#Vertex normals
8 messages in this thread
Is there a way to recieve the number of vertex normals from a modeled object.
Not the number of vertecies, but the number of vertex normals?
Thanks
Dave
There's a normal for each face, so just do a Current Status and it'll tell you
how many faces there are.
– G
I'm not talking about face normals, I'm talking about vertex normals. 3ds may
not deal with them.
If one vertex is used in more than one smoothing group, then that vertex has
more than one normal.
I could derive the number of vertex normals by figuring the # of verticies used
by more than one smoothing group then double it, but that's a pain.
Do you have any other suggestions?
thanks
Vertices don't have normals in 3DS. (normals don't have anything to do with
smoothing groups)
– G
Thanks for the help.
What is it that you're trying to do with vertex normals?
Count them. I believe that vertex normals are a function of the drawing
engine, and how it computes the geometry. Although I don't know much about it
at all.
I want to determine a way, or a software package that can calculate the number
of vertex normals, so I can adjust my geomtry accordingly.
So you want to know the number of shared, smoothed vertices… Just the number?
Wouldn't it be more important to know which ones are shared, if you were
adjusting your geometry? From what I've seen, this is one of those issues that
each 3D engine handles differently. Sometimes the presence or absence of
vertex normals bubbles up to the file format, where I see it in my work with
file translators. Sometimes the information such as vertex connectivity is
implicit and re-calculated as the engine renders.