# P5.js Using Shaders with FrameBuffers
**URL:** https://discourse.processing.org/t/p5-js-using-shaders-with-framebuffers/43874
**Category:** Coding Questions
**Created:** [February 10, 2024, 10:03am UTC](https://discourse.processing.org/t/p5-js-using-shaders-with-framebuffers/43874 "2024-02-10T10:03:52Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@prontopablo](https://discourse.processing.org/u/prontopablo)
#### Post date: [February 10, 2024, 10:03am UTC](https://discourse.processing.org/t/p5-js-using-shaders-with-framebuffers/43874/1 "2024-02-10T10:03:52Z")
Hi all!
I’m trying to use p5.js framebuffers with shaders. I have had success with other shaders but this threshold shader and a few other similar ones I have only work for a moment and then the screen fades to black. I can’t tell if it’s an issue on the shader side or something else.
Here’s a link to the [sketch](https://editor.p5js.org/prontopablo/sketches/-QEUzST_G)
Any help would be greatly appreciated!
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### Author:  [@scudly](https://discourse.processing.org/u/scudly)
#### Post date: [February 10, 2024, 6:20pm UTC](https://discourse.processing.org/t/p5-js-using-shaders-with-framebuffers/43874/2 "2024-02-10T18:20:09Z")
Add a `resetShader();` after the `rect();`. The shader is still in effect the next time you draw the layer which is (somehow) causing the problem.
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### Author:  [@prontopablo](https://discourse.processing.org/u/prontopablo)
#### Post date: [February 10, 2024, 6:46pm UTC](https://discourse.processing.org/t/p5-js-using-shaders-with-framebuffers/43874/3 "2024-02-10T18:46:11Z")
Thank you so much, I’ve been banging my head against the wall for 4 days. I couldn’t for the life of me figure out why the sampler seemed to change over time. I tried so many things, thank you. I really have no idea why certain shaders are affected or what the underlying interaction is that makes this happen.
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### Author:  [@sableraph](https://discourse.processing.org/u/sableraph)
#### Post date: [February 16, 2024, 10:58am UTC](https://discourse.processing.org/t/p5-js-using-shaders-with-framebuffers/43874/4 "2024-02-16T10:58:56Z")
Ping @davepagurek for shader wisdom 🙂