This should fix the strange "particle glow" when looking at them at different pitch.
The existing logic is the same, only the Entity ID needs to be changed, and instead of an item definition, the smoke must be a font.
Due to Mojang restrictions, this unfortunately still requires continuous tp: if using billboard(center) + transformation (translation) the body rotates around the position origin and not around the translated center.
Probably it uses less resources, since fonts are automatically culled and 2D optimized.
This should fix the strange "particle glow" when looking at them at different pitch. The existing logic is the same, only the Entity ID needs to be changed, and instead of an item definition, the smoke must be a font. Due to Mojang restrictions, this unfortunately still requires continuous tp: if using billboard(center) + transformation (translation) the body rotates around the position origin and not around the translated center.
Probably it uses less resources, since fonts are automatically culled and 2D optimized.