📸 glb-mp4

Easily screenrecord, screenshot and create an mp4 recording and PNG for glTF 2.0 Binary (GLB) files.

Install

Use npm to install this tool:

npm install glb-mp4

Usage

To start taking screenshots of GLB files

$ screenshot-glb
Options:
  --help         Show help                                              [boolean]
  --version      Show version number                                    [boolean]
  -i, --input    Input glTF 2.0 binary (GLB) filepath                  [required]
  -o, --output   Output MP4 screenshot filepath                        [required]
  -t, --timeout  Timeout length
  -w, --width    Output image width
  -h, --height   Output image height
  -c, --color    Change the background color of the rendered image
  -@, --model_viewer_version
                 Pass the version of Model Viewer which should be used .eg 1.9
  -m, --model_viewer_attributes
                 Pass <model-viewer> attributes as a URL search param string
  -q, --image_quality
                 Change the image quality of the rendered JPG default 0.92

Dependencies

The module relies on using puppeteer to spawn a headless instance of Chrome to render Google's web component with the GLB model loaded.

Development

• yarn install
• yarn link
• screenshot-glb -i <PATH_TO_MODEL> -o <PATH_TO_OUTPUT_IMAGE>

Examples

// Simply render a GLB to MP4
$ screenshot-glb -i <PATH_TO_MODEL> -o <PATH_TO_OUTPUT>

// Change the width and height of the render
$ screenshot-glb -i <PATH_TO_MODEL> -o <PATH_TO_OUTPUT> --width 600 --height 1200

// Change the exposure and environment-image
$ screenshot-glb -i <PATH_TO_MODEL> -o <PATH_TO_OUTPUT> -m "environment-image=neutral&exposure=0.92"

// Use a specific version of Model Viewer to create the screenshot
$ screenshot-glb -i <PATH_TO_MODEL> -o <PATH_TO_OUTPUT> -@ 1.9

Linux

You may need to install the following packages in order for the headless Chrome instance to work on headless Linux VM machines:

gconf-service
libasound2
libatk1.0-0
libatk-bridge2.0-0
libc6
libcairo2
libcups2
libdbus-1-3
libexpat1
libfontconfig1
libgcc1
libgconf-2-4
libgdk-pixbuf2.0-0
libglib2.0-0
libgtk-3-0
libnspr4
libpango-1.0-0
libpangocairo-1.0-0
libstdc++6
libx11-6
libx11-xcb1
libxcb1
libxcomposite1
libxcursor1
libxdamage1
libxext6
libxfixes3
libxi6
libxrandr2
libxrender1
libxss1
libxtst6
ca-certificates
fonts-liberation
libappindicator1
libnss3
lsb-release
xdg-utils
wget