Last week I started making a volcano that was starting to erupt. I've got some sparks and I made a nice smoke simulation. I clicked Bake All Dynamics and then rendered. The result was a nice volcano with sparks. The smoke, though... It's hard to explain, but it's vibrating. I don't think smoke should do that. I've google a bit for vibrating smoke, but I couldn't find anything except for actual blender that start smoking. This is the actual animation for anyone who would like to see it. Does anyone here have any idea what I may have done wrong and/or maybe some tips to speed up the baking and rendering process (it take way longer that I have time for).