I recently came across this page, in which the creator made the transparent, glowing exhaust effect as seen in the photo on the linked page. The effect is interesting and I want to try and play around with it, or something like it, but I'm not quite sure I understand the method the creator outlined:
It's an array of 25 planes, each with a circular gradient material fading from transparent on the outside to blue to white on the inside. It's kind of a hack but it works surprisingly well.
I've been looking around for a material, or method to create this sort of transparent effect, without the appearance of an edge if I were to create a conical shape. This might be what I'm looking for to create the desired effect.
So is anyone able to clarify what the quoted description means?