mesh-normals
Given a list of vertices and faces, generate the normals for a triangle mesh.
Geared more towards "soft" low-poly normals, as you can't use indexed draw calls with the resulting normals. If you're just planning on straight smooth vertex normals, use the normals module. If you want low-poly and only have a "triangle soup" mesh, face-normals will still work for you.
Installation
Usage
normals(cells, positions, flatness, [output])
cells
is an indexed list of faces. Each face should be three elements long,
one element per point.
positions
is a list of vertex positions.
flatness
is a value between 0 and 1, where 0 will return results only from
the vertex normals and 1 will return results only from the face normals. 0.5
will be the middle ground between them.
Optionally, you can pass in an array-like output
object to set the values
directly. If not, a Float32Array
will be created for you - either way, the
new/updated array will be returned.