My guess is that you’re remembering this demo: https://xcancel.com/_nonfigurativ_/status/172732259457002734...
Yep, that's right.
The ability from this demo is Chromium-specific, needs extra permissions and has nothing to do with GLSL: https://developer.mozilla.org/en-US/docs/Web/API/Window_Mana...
Yep, that's right.
The ability from this demo is Chromium-specific, needs extra permissions and has nothing to do with GLSL: https://developer.mozilla.org/en-US/docs/Web/API/Window_Mana...