Three.js blend modes from source (not in docs)

threejs-blendmodes

THREE.NoBlending = 0;
THREE.NormalBlending = 1;
THREE.AdditiveBlending = 2;
THREE.SubtractiveBlending = 3;
THREE.MultiplyBlending = 4;
THREE.CustomBlending = 5;

How to change it:

var material = new THREE.BasicMaterial({
  ...
  opacity: 0.5,
  blending: THREE.AdditiveBlending,
  transparent: true
  ...
});