Three.js: node material examples are broken under webgl 1

[makc]

I see this on mac firefox right now:

[Mugen87]

Tested with Firefox 82.0.2 and macOS 10.15.7 without issues.

[Mugen87]

BTW: It would be nice if you would not delete the issue template but fill it out instead.

[makc]

ok well, this is osx 10.11.6, the code you have in your repo, the expected result is what you see. just tried different browser (chrome) with the same result

maybe that extension is automagically enabled in webgl2 which is why you do not see any problems

edit: I was right here,

[makc]

ok, some more input: same issue in https://threejs.org/examples/?q=node#webgl_materials_nodes so this is something about node materials, not mirror... weird, they used o work before I think

[Mugen87]

Any chances to update your OS to the latest version?

[makc]

I need new hardware for that. Even if I could, how does it help 3js? Or do you mean to say, webgl 1 is no longer supported?

[Mugen87]

Even if I could, how does it help 3js?

Sometimes such issues are caused by GPU driver bugs. If you upgrade macOS, you also upgrade the GPU driver. In general, we want to avoid implementing fixes for GPU driver bugs.

In any event, I can reproduce the issue when using WebGL1Renderer and node material.