KPop Demon Hunters inspires not only character artists: it seems like every little detail of the movie was made so well that we can now see a lot of it recreated in 3D.
VFX artist mqleh is one of those affected by the show's glory: they presented a procedural weapon trail effect with sparkling "stars" following the blade in an arch, created using Blender.
The FX was done with Geometry Nodes, and we might get a tutorial soon, as mqleh's fellow artists are curious about how to make something like this.
For now, follow the creator on Reddit and check out Ash Thornton's slow-mo sword trail and learn how to make one from Ashif Ali's tutorial.