Function nannou::prelude::geom::tri::flatten_index_tris

pub fn flatten_index_tris<I>(
    index_tris: I
) -> FlattenIndices<<I as IntoIterator>::IntoIter> 
where
    I: IntoIterator<Item = [usize; 3]>,

Given an iterator yielding trios of indices, produce an iterator that yields each index one at a time.