Given an array of triangles' vertices, return a `Float32Array` of their normal vectors.
npm install face-normalsGiven an array of triangles' vertices, return a Float32Array of their normal
vectors. Helpful for quickly calculating the the normals of a mesh (assuming
it's made up of triangles).
see the demo, and how it compares toheightmap-mesher's, for some
example usage.
Takes an array-like list of triangles. Each vertex should take up 3 elements,
combined into groups of 3 to make each triangle. Optionally, you can pass in
an array-like output object to set the values directly. If not, aFloat32Array will be created for you - either way, the new/updated array will
be returned.