Paint powder explosion

[Bertjenkins]

Thanks... actually i was not so much talking about the colours (but that's useful info), more the feel of the separate streams. I definitely have had better results with smoke. The central high discharge smoke seems to look ok in my attempt but i can't seem to get the look of the outer ones with naturally random discharge and nice long straight streaks. Mine seem to end as a cloud. Also I have real problems trying to manage the resolution with multiple sources. Using particles always seems to feel wrong to me.
How would you set this up? With a particle animation (eg instanced nparticles) as a single source for the smoke. or hundreds of individual sources (one per instance) ? Also should they be surface force or brush/inject?

[georgi.zhekov]

Using one source would be a lot easier to tweak compared to a lot of sources. By using the nparticles as an emitter you have quite a lot of control, so you should be able to direct the simulation better.
When simulating - the scene scale is really important - so if something feels wrong - try increasing the Grid scale a few times or decrease it.

Here is a sample scene how this would work.

[Bertjenkins]

Wow thanks Georgi, that's a big help! I'm surprised how fast it simulates when you have the resolution correct. That gives me lots to think about