the rainbow looks strange (several parallel lines in the picture)

[DianaTavares]

Test device: MacBook Air (13-inch, 2017)

Operating System: macOS Mojave

Browser: Chrome Version 74.0.3729.169 (Official Build) (64-bit)

Problem description: when I zoom in in the rainbow, it have several parallel vertical lines.

Steps to reproduce: zoom in the x-axes to see the rainbow

Screenshots:

Troubleshooting information (do not edit): Name: ‪Blackbody Spectrum‬ URL: http://phettest.colorado.edu/blackbody-spectrum/blackbody-spectrum_en.html?ea&brand=phet Version: 1.0.0-dev.16 (require.js) Features missing: touch User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36 Language: es-419 Window: 1440x721 Pixel Ratio: 1/1 WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium) GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 15 uniform: 1024 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 80) Max viewport: 16384x16384 OES_texture_float: true Dependencies JSON: {}

[arnabp]

@KatieWoe Would you be able to see about recreating this on any of the test machines? I wasn't able to recreate this on my machine and I talked to @DianaTavares who said it's possible it's something strange going on in her system specifically.

[KatieWoe]

I'll take another look.

[KatieWoe]

From Slack:

Arnab Purkayastha [12:15 PM]
Hey, before you get too far into testing that blackbody spectrum issue, just found out that Diana was apparently looking at prettest instead of the dev version when she found the bug, and now I can recreate it. So you don’t need to look into it, sorry about that.

[arnabp]

Making a note here that this issue is a result of https://github.com/phetsims/scenery-phet/issues/500

[arnabp]

This has been resolved as a result of the changes to scenery, closing.