https://github.com/mikolalysenko/raymarch

Raymarching based renderer for volume visualization
https://github.com/mikolalysenko/raymarch

Last synced: about 2 months ago
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Raymarching based renderer for volume visualization

• Host: GitHub
• URL: https://github.com/mikolalysenko/raymarch
• Owner: mikolalysenko
• License: mit
• Created: 2013-10-01T23:44:28.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2014-09-14T16:35:35.000Z (over 10 years ago)
• Last Synced: 2024-10-20T14:28:17.711Z (2 months ago)
• Language: JavaScript
• Homepage: mikolalysenko.github.io/raymarch
• Size: 400 KB
• Stars: 7
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
raymarch

========

A basic ray marching volume rendering module.

Install

=======

    npm install raymarch

Example

=======

[View this demo in your browser right now](http://mikolalysenko.github.io/raymarch/)

```javascript

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

```javascript

var createVolumeViewer = require("raymarch")

```

## Constructor

### `viewer = createVolumeViewer(gl, array)`

Creates a volume viewer object

## Methods

### `viewer.model`

The current model matrix for the viewer

### `viewer.view`

The current view matrix for the viewer

### `viewer.projection`

The current projection matrix for the viewer

### `viewer.draw()`

Draws the current volume to the screen

### `viewer.dispose()`

Releases all resources associated with this viewer.

# Credits

(c) 2013 Mikola Lysenko. MIT License