GameObject > Particle system추가
http://johnstejskal.com/wp/wp-content/uploads/2015/06/Smoke.png
텍스처 다운로드
메테리얼 추가한 후
shader Particles/Additive(Soft)로 변경
파티클 값 세팅 후
Emission
Shaple
Color over Lifetime
Size over Lifetime
Size over Lifetime
Size by Speed
Rotation over Lifetime
Renderer
Particle Sytem 세팅하면
스모크 완성!!