processing / processing/p5.js

shader overrides image if shader uses texture uniform input

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#6,564 6 comments 0 reactions 0 assignees View on GitHub

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Area:WebGL Bug
Dominant language
JavaScript
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Most appropriate sub-area of p5.js?
  • Accessibility
  • Color
  • Core/Environment/Rendering
  • Data
  • DOM
  • Events
  • Image
  • IO
  • Math
  • Typography
  • Utilities
  • WebGL
  • Build Process
  • Unit Testing
  • Internalization
  • Friendly Errors
  • Other (specify if possible)
p5.js version

1.8

Web browser and version

Chrome

Operating System

MacOS

Steps to reproduce this

Here is the example code https://editor.p5js.org/agrshch/sketches/1u8ZRnuKQ

image() function behave weirdly if there is a shader, which uses a texture input

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked p5.js Editor reproduction and inspect the WebGL image() behavior when a shader uses a texture uniform input. Confirm the issue in Chrome, then verify that image() renders correctly alongside the shader without the shader overriding it.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
computer-graphics
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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