Halo effect

grabcad

The challenge of emulating candlelight through a fluorescent tube led me to initially utilize SolidWorks' PV plug-in, which proved inadequate for handling long-distance light sources. Consequently, I switched to KeyShot 7.1 and created the candle using Rhino, T Splines. To achieve the "Halo effect," I employed Adobe Photoshop (Filter > Render > Lens Flare, followed by Filter > Blur > Gaussian Blur). I'm curious if there are any 3D rendering software that can directly produce this "Halo effect" without requiring post-rendering in Photoshop.