Voxel-mesh NPM

voxel-mesh

generate a three.js mesh from voxel data. extracted from some code by @mikolalysenko

original repo: https://github.com/mikolalysenko/mikolalysenko.github.com/tree/master/MinecraftMeshes2
blog post: http://0fps.wordpress.com/2012/07/07/meshing-minecraft-part-2/
webgl demo: http://mikolalysenko.github.com/MinecraftMeshes2/

installation

use voxel-mesh-browserified.js

or to build yourself:

npm install voxel-mesh
npm install browserify -g
browserify -r voxel-mesh > voxel-mesh-browserified.js

usage

require('voxel').generate(low, high, iterator)

where low and high are [x, y, z] start and end positions to iterate over and iterator is the function that visits each voxel

returns an object like this: { "voxels": "a 1D Int32Array filled with voxel data", "dims": [x, y, z] }

example that creates randomly colored voxels:

require('voxel').generate([0,0,0], [16,16,16], function(x,y,z) {
  return Math.round(Math.random() * 0xffffff)
})

a sphere:

require('voxel').generate([0,0,0], [32,32,32], function(x,y,z) {
  return x*x+y*y+z*z <= 16*16 ? 0x113344 : 0
})

using the included generator functions:

var voxel = require('voxel')
voxel.generate([0,0,0], [32,32,32], voxel.generator['Hilly Terrain'])
// or
voxel.geometry['Hilly Terrain'] // pre-generated at some specific example size

require('voxel').meshers

meshers is an object with stupid, culled, monotone and greedy mesher functions. you probably want to just use greedy. all mesher functions accept voxel data in the format the gets returned by the generate function.