Liberty3D citizens Kevin Philips and Dana W. Burman have made a few short videos on metablob animation.

First Kevin made a video showing how to make a metablob animation that is predictable and loopable using a morphing point cloud

Then he followed that up by making an instructional video that demonstrates how HyperVoxel blending works.

Dana built on Kevin’s work by showing how, if you don’t need the control or loopability, you can very quickly set up a similar animation using LightWave 11’s Flocking tools.