Hey @bentraje, thank you. I made about 5 different single sparks (based on splines and sweep nurb), put them into a cloner so I can use physics and put that into 3 Emitters with different Parameters on count / size / velocity / random Variation etc.. For the material I used a gradient from red / orange / yellow to white in the color channel. I then added a glow as well as the luminance channel. Not yet happy though, maybe needs less glow but more sparks.