title: ThreeJS PointMaterial texture transparent background issue
body: <p>I have a set of particles made with THREE.Points, and I'm using THREE.PointMaterial with texture. The texture are stroke rectangles made with canvas, and it works, but just partially, that is the problem.</p>
  
  <p>Here you can see what is happening with my particles:</p>
  
  <p><a href="https://i.stack.imgur.com/JLCc4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JLCc4.png" alt="image"></a></p>
  
  <p>As you can see, the transparency of the particles work just with some particles and with some others do not.</p>
  
  <p>What could be happening here?</p>
  
  <p>This is the code I use to create the material:</p>
  
  <pre><code>var material = new THREE.PointsMaterial( {
    size: this.particleSize,
    vertexColors: THREE.VertexColors,
    map: ct.getTexture(),
    transparent: true,
    fog: false } );
  </code></pre>