raymarch

Volume ray marching renderer

raymarch

A basic ray marching volume rendering module.

Install

npm install raymarch

Example

View this demo in your browser right now

var createVolumeRenderer = require("raymarch")
var shell = require("gl-now")()
var camera = require("game-shell-orbit-camera")(shell)
var glm = require("gl-matrix")
var voxelize = require("voxelize")
var bunny = require("bunny")
var ops = require("ndarray-ops")
 
camera.lookAt([3,0,0], [0,0,0], [0,1,0])
 
var viewer
 
shell.on("gl-init", function() {
  var voxels = voxelize(bunny.cells, bunny.positions, 0.1).voxels
  ops.mulseq(voxels, 255)
  viewer = createVolumeRenderer(shell.gl, voxels)
})
 
shell.on("gl-render", function() {
  viewer.projection = glm.mat4.perspective(new Float32Array(16), Math.PI/4.0, shell.width/shell.height, 0.01, 1000.0)
  viewer.view = camera.view()
  viewer.draw()
})

API

var createVolumeViewer = require("raymarch")

Creates a volume viewer object

The current model matrix for the viewer

The current view matrix for the viewer

The current projection matrix for the viewer

Draws the current volume to the screen

Releases all resources associated with this viewer.

Credits

(c) 2013 Mikola Lysenko. MIT License