Regarding adding the blue zone to my last shader I tried a few ideas but my only even vaguely successful result was this

The blue was a SimpleColor node because I was planning to combine this with the previous flame shader. However, looking at the pictures of real flames again I thought "the blue is almost a completely separate thing"...

So I just tried duplicating the flame ellipsoid mesh, making it 5% larger, and applying the blue zone shader just to that.

Firefly left, Superfly right, with and without lights. Flame shader same as before.

Once again not so good in Superfly, but I'm delighted by the Firefly results !

I also had a third ellipsoid, 5% smaller than the first, to use as an invisible-in-render light emitter... but you can't do that with props. I mean make part of the prop invisible-in-render, make another part not-cast-shadows. I think the flame needs to be nested props or perhaps a figure to do that ?

Also I think that creating just a candle-flame prop/figure, i.e. without the wick/candle, is a good idea - that way I can use it on all those candles in my runtime. Which was actually the reason this topic reignited after a two year hiatus !

---

The 3Dcheapskate* occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.

*also available in ShareCG, DAZ, and HiveWire3D flavours (the DeviantArt and CGBytes flavour have been discontinued).