EquiRectangularCubeTexture too dark on iOS // Conversion to int loses hdr info

Hi!

using BABYLON.EquiRectangularCubeTexture as scene.environmentTexture (or reflectionTexture on the materials) makes any material appear too dark under any iOS Browser.
To me this really looks like the same bug as this one where it comes down to “Conversion to int loses hdr info”:

Could anyone please give me some feedback?
I’m totally new to Bjs. Love it so far.

Kind regards
Dominic

Welcome @DerDominic a playground would be amazing to try and repro the issue ?