flux-three-plugins/rollup.config.js

import json from 'rollup-plugin-json';
import commonjs from 'rollup-plugin-commonjs';
import nodeResolve from 'rollup-plugin-node-resolve';

export default ({
    entry: 'src/index.js',
    external: ['three'],
    globals: ['three:THREE'],
    plugins: [json(), nodeResolve(), commonjs()]
});