A simple CPU based mesh voxelizer written in rust.
use meshvox::Voxels;
use std::fs::File;
use std::io::Write;
fn main()-> Result<(), Box<dyn std::error::Error>>{
let p0 = [0.0, 0.0, 1.0];
let p1 = [1.0, 0.0, 0.0];
let p2 = [0.0, 1.0, 0.0];
let p3 = [-1.0, 0.0, 0.0];
let p4 = [0.0, -1.0, 0.0];
let i0 = [0, 2, 1];
let i1 = [0, 1, 4];
let i2 = [0, 4, 3];
let i3 = [0, 3, 2];
let i4 = [2, 3, 4];
let i5 = [2, 4, 1];
let vertices = vec![p0, p1, p2, p3, p4];
let indices = vec![i0, i1, i2, i3, i4, i5].iter().flatten().map(|i|*i).collect::<Vec<_>>();
let box_size = 0.05;
let pyramid = Voxels::voxelize(&vertices, &indices, box_size);
let (v, i) = pyramid.vertices_indices();
let mut file = File::create("examples/pyramid.obj")?;
for vertex in v{
writeln!(file, "v {:0.6} {:0.6} {:0.6}", vertex[0], vertex[1], vertex[2]);
}
for index in i.iter().step_by(3){
writeln!(file, "f {} {} {}", index+1, index+2, index+3);
}
file.flush()?;
Ok(())
}