# Shader test for audio visualizer

**URL:** <https://discourse.processing.org/t/shader-test-for-audio-visualizer/33554>\
**Category:** Gallery\
**Created:** [November 16, 2021, 1:08pm UTC](https://discourse.processing.org/t/shader-test-for-audio-visualizer/33554 "2021-11-16T13:08:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![paulgoux](https://avatars.discourse-cdn.com/v4/letter/p/b9bd4f/32.png) [@paulgoux](https://discourse.processing.org/u/paulgoux)\
**Post date:** [November 16, 2021, 1:08pm UTC](https://discourse.processing.org/t/shader-test-for-audio-visualizer/33554/1 "2021-11-16T13:08:22Z")

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Just sharing a work in progress. Its basically a combination of multiple shaders with a feedback loop for the image. it produces some interesting results and plays nicely with shapes drawn onto the canvas. Will post update later. The code is a bit large and currently a lot of bugs, also there is no shader logic to speak of, just filters.

[![](https://img.youtube.com/vi/1qSV4tbRDFU/hqdefault.jpg "ImageP 2021 11 16 10 41 34") ](https://www.youtube.com/watch?v=1qSV4tbRDFU)

Ive combined it with a particle class as for some reason some settings interact with shapes drawn onto the canvas.