[p5.js 2.0 Bug Report]: ellipse() with negative detail crashes in WEBGL

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
• Internationalization
• Friendly errors
• Other (specify if possible)

p5.js version

2.2.0

Web browser and version

Google chrome Version 144.0.7559.133

Operating system

Windows 11

Steps to reproduce this

Steps:

1. Create WEBGL canvas
2. Call ellipse()
3. Pass a negative detail value

Snippet:

function setup() {
  createCanvas(200, 200, WEBGL);
  noLoop();
}

function draw() {
  ellipse(0, 0, 100, 100, -10);
}

Observed Behaviour:

Sketch crashes when ellipse() is called with negative detail.
Renderer stops and runtime exception occurs.

Expected Behaviour:

Negative detail values should not crash the renderer.

Possible alternatives:
• Clamp to minimum valid value
• Ignore invalid input
• Throw friendly error

Additional Note
Tested with:

• ellipse(..., -1)
• ellipse(..., -10)
• ellipse(..., -100)

All resulted in crash.

I'm willing to implement a fix if this gets approved.

The payload names no files or tests. Start by running the provided WEBGL sketch with negative detail values (-1, -10, and -100), then trace ellipse() through the rendering path; done means those inputs no longer crash the renderer and the behavior is covered by regression testing.