animated clouds

Is there anyway to create a cloud effect like in the beginning of this video? Some kind of particle system? And how to get materials to look like this?

That looks like it was done with volumetrics. There are some special builds that have that feature, but it does not come with Blender by default. Do some searches on volumetric.

Thanks, I’ll take a look at volumetrics when I get a chance (probably not for a few weeks :frowning: