Much like with ICE in XSI, the Houdini community provide some really excellent extensions to Houdini that answer a range of challenges. One such example is this HDA for working with ramps.
https://vimeo.com/209920249 You can download the asset itself of the complete library, which contains a wealth of assets, many geared towards motion design and generative art. https://github.com/Aeoll/Aelib This in turn reminds me of one of the essential 3rd party add-ons and one which is maintained by a range a super experienced TD's at some of best worldwide shops. https://github.com/qLab/qLib Both libraries are definitely worth a dabble.
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