I am looking to create a carbonated liquid that when poured into a container, in this case a cup, bubbles up and develops foam on the surface. My current workflow is I create in Houdini then export as alembic to cinema 4d and render with octane. The past couple days I have tried a variety of methods but none of them seem to work. Right now I have a sphere that I have converted to two different volume sources that emit two different liquids, one having a larger density than the other. I then place each flip object in its own dop io and create geometry, however, the two liquids do not seem to collide at all in the finished product and render identically. Does anybody have any advice on how I can achieve this effect? Or just better workflow advice in general as I am new to Houdini. Thanks!