Houdini - Infection VEX solver

In this video I create a fully controllable infection effect with the Solver SOP and VEX, going from zero all the way to the digital asset. Get hip at:   / fchamon  

00:00: Intro video
02:00: Defining starting points
04:45: Creating the solver (Solver SOP)
06:50: Solver VEX code (simple)
13:00: Painting a contamination threshold map
14:40: Improving the VEX code to use maps
18:48: Adding noise to the input map
25:35: Adding Blur and Edge Detection to the infected points
32:03: Adding another method for defining Initial grow
37:20: Utilizing texture maps as contamination multipliers
41:13: Adding speed controls
48:18: Creating the Digital Asset
01:08:56: Example uses for the tool