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beginShape(TESS) only works on faces facing the camera #5913

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2 of 17 tasks
davepagurek opened this issue Dec 20, 2022 · 0 comments · Fixed by #5914
Closed
2 of 17 tasks

beginShape(TESS) only works on faces facing the camera #5913

davepagurek opened this issue Dec 20, 2022 · 0 comments · Fixed by #5914
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@davepagurek
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Area:Core Area:WebGL Bug

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@davepagurek
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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

1.5.0

Web browser and version

Firefox 107.0

Operating System

MacOS 12.5.1

Steps to reproduce this

When using beginShape(TESS), we perform a 2D tesselation, and projecting the points into 2D along the normal specified here:

https://github.com/processing/p5.js/blob/main/src/webgl/p5.RendererGL.js#L1501

This works for faces that face the camera, but breaks on faces that are perpendicular to the camera, leaving holes e.g. in this sketch: https://editor.p5js.org/davepagurek/sketches/HLO-ZN5Vg
Screen Shot 2022-12-19 at 8 26 16 PM
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@davepagurek davepagurek

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Area:Core Area:WebGL Bug
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Support beginShape(TESS) for faces that don't face the camera davepagurek/p5.js
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@davepagurek