The Dissolving Girl

Final

She starts as a model in Lightwave, which is then exported to Maya for character rigging and posing.

Once the posed model is brought into Houdini, it is processed by a network of geometry operators that break it into individual polygons, which follow particles and collect at the floor.

Each of these images link to a larger version of the same picture.

Videos:
Final animation
Test render

Lightwave model Houdini 1
Houdini 2 Houdini 3