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phetsims / molecule-shapes

"Molecule Shapes" is an educational simulation in HTML5, by PhET Interactive Simulations.
http://phet.colorado.edu/en/simulation/molecule-shapes
GNU General Public License v3.0
5 stars 6 forks source link

Sim runs without webgl on Mac 10.11 chrome #162

Closed KatieWoe closed 2 years ago

KatieWoe commented 5 years ago

Device Dirac OS 10.11.6 and 10.12.6 (and 10.10 but this browser is not supported there) Browser Chrome Problem Description For https://github.com/phetsims/QA/issues/279 and https://github.com/phetsims/QA/issues/280 WebGL seems to be off for the latest google chrome on Mac 10.11.6. webgl=true does not seem to do anything. Webgl does not seem to be off for the other browsers on 10.11, and has not seemed to be off on chrome on 10.14 or 10.13. Is a problem in published version

jonathanolson commented 5 years ago

What does the Report a Problem / troubleshooting info for the sim say about WebGL status? (on Dirac)

KatieWoe commented 5 years ago 
Troubleshooting information (do not edit):
Name: ‪Molecule Shapes: Basics‬
URL: https://phet-dev.colorado.edu/html/molecule-shapes-basics/1.2.0-rc.1/phet/molecule-shapes-basics_en_phet.html
Version: 1.2.0-rc.1 2019-02-01 18:53:54 UTC
Features missing: touch
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36
Language: en-US
Window: 1180x698
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: 32 varying: 32 uniform: 256
Texture: size: 8192 imageUnits: 16 (vertex: 16, combined: 32)
Max viewport: 8192x8192
OES_texture_float: true
Dependencies JSON: {}
jonathanolson commented 5 years ago

Interesting. Just tested, and it looks like WebGL is potentially "technically" supported on Dirac, however because we provide the option failIfMajorPerformanceCaveat, the sim won't use it. I manually tested without that, and WebGL is SLOW if we use it (the canvas fallback is much nicer on Dirac).

@KatieWoe is there a good place to note that Dirac (or probably other devices like it) will not use WebGL due to the performance drawback?

KatieWoe commented 5 years ago

I'll make a note to add it to the QA book. Why was it only on chrome?

jonathanolson commented 5 years ago

I didn't check the other browsers, but if it's only Chrome doing that then it's probably due to Chrome blacklisting the GPU or OS.

KatieWoe commented 5 years ago

Firefox is doing some other weird graphical things. https://github.com/phetsims/molecule-shapes/issues/161

jonathanolson commented 5 years ago

It seems the Firefox item is either unrelated (if it's a security issue that caused the blacklisting), or potentially due to general bugginess. Unassigning.

jonathanolson commented 5 years ago

Since I believe we shouldn't change behavior here, I'm marking as will-not-fix.

arouinfar commented 2 years ago

Since this is tagged as wontfix, I'll close.