>>413472690
you're looking for particle effects, use this shader to do thing like blur or hue shift or whatever screen space effects you want (https://github.com/AkaiMage/VRC-Cancerspace), try to find something like the ultimate vfx pack on the unity store for some particle systems to look at. keep in mind most people here are extremely boring and will block/hide you if they see you emit even one particle.