# Particle trails using feedback transform method

**URL:** <https://discourse.libcinder.org/t/particle-trails-using-feedback-transform-method/946>\
**Category:** Using Cinder\
**Created:** [November 8, 2017, 9:01pm UTC](https://discourse.libcinder.org/t/particle-trails-using-feedback-transform-method/946 "2017-11-08T21:01:33Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![roxlu](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.libcinder.org/roxlu/32/509_2.png) [@roxlu](https://discourse.libcinder.org/u/roxlu)\
**Post date:** [January 11, 2018, 1:57pm UTC](https://discourse.libcinder.org/t/particle-trails-using-feedback-transform-method/946/5 "2018-01-11T13:57:07Z")

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Hey, just wanted to share some experiments I did with GPU based ribbons using transform feedbacks. There is not a lot info online and I only found some talk about xfb ribbons on this forum. I’m experimenting with ribbons using an index buffer to select the positions that make up the ribbons. For now just 2D, but it shows one approach you can take: [https://bitbucket.org/roxlu/2018-002-gpu-ribbons](https://bitbucket.org/roxlu/2018-002-gpu-ribbons)

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