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: 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