1. To build the npm modules you will need both node and npm installed.
2. We can then use npm to resolve our remaining Javascript build dependences. These dependencies are specified in utils/build/package.json.
3. Note that there are other dependences - in particular, the closure compiler is invoked, so you will need to ensure that java points to a suitably up-to-date version of the JVM.

To invoke the build script (which will build both the both the three and three-math node modules) we need to run a command like

> node build.js 0.54.3-dev

in this directory. Note how we have to provide the build script with the version number. The version number is of the form major.minor.fix[-dev]. The major/minor version numbers of the build should be taken from the REVISION parameter in src/Three.js (e.g. if REVISION: '68' choose 0.68).

Note that the following rules should be followed to determine the full version identifier:

• Increment the fix number by 1 if you are re-publishing an existing Three.js version. If this is a new release the fix number should be 0.
• Add -dev to the version number if this is a development branch.

As an example, to build r68, checkout the r68 tag, follow the above, and then run

> node build.js 0.68.0

The built modules will be left in node_modules in this directory. To upload both three and three-math to npm, run

> npm publish node_modules/three
> npm publish node_modules/three-math

in this directory.