Make Glowin effect visible from back of an object when material is transparent

Questions
1

I’ve made this codepen

at a certain interval 3 spheres are selected and turned to red alternatively.

I’ve used this example for the selective glooming effect;

Now the 2 problems I’m facing are:

  1. When at the back of the sphere the little sphere turns white
  2. The glowing effect only shows at the surface and the little spheres even though I can see them doesn’t show the glowing even with transparency.

So if anyone has an idea that would be great

Thank you for your time and consideration