roblox-vfx Main source: https://create.roblox.com/docs/en-us/effects/particle-emitters + the Effects section of the docs and the ParticleEmitter class reference. Tune particle lifetime, size, transparency, and rate together. Profile overlapping transparent effects on the lowest target device. For marker-triggered bursts, read roblox-animation. For UI particles, read roblox-user-interfaces; ParticleEmitters do not render inside ViewportFrame. Core creation and parenting - Parent ParticleEmitter to a BasePart (emission fills bounds or chosen EmissionDirection face) or (strongly preferred for co…