Finally, I got a little time to throw something together. I know it sucks, but I don’t think it’s terrible for strictly using Blenders particle system. It is also very annoying when your up to 50000 particles to find out after a --long-- render that a color was wrong, so eventually your just like ‘ahh…screw it’ and let it go.
I know the lighting is off and there’s a strange black transistion towards the back of the shockwave. Every mushroom cloud I looked at is different, so there isn’t really one set look. There is also quite a fireball in there, but it dosn’t show through very good.
Let me know what ya think !