This tutorial shows a technique for doing procedural text animation in Houdini, which I covered in my Motion Graphics class at SideFX software in October. Thanks to Peter Claes who provided guidance on the letter attribute problem.
This was an odd video to do since it seems to be a simple topic but when talking about it out loud it starts sounding complicated. I'm basically covering several sub-topics which support the overall topic. Despite the confusing ramblings in the video, what you should take away from it is that in VOP COPs, the "Raster Depth" setting can cause results to vary depending on the data generated inside.
You can find the hipnc file and other videos on my website: http://www.geneome.com.
This video covers particles, bounding objects, and attribute transfer. It's a nice overview of how to combine these aspects of Houdini to get a particular effect. You can find the hipnc file and other videos on my website: http://www.geneome.com.