The converted .env files show that the size of the .env exported from 4K HDR is nearly identical to that from 2K HDR, yet the skybox clarity differs significantly from 4K HDR. Is this due to resolution compression applied by the converter during conversion?
ok the reason is that the exr is NOT a cube texture (it is a simple 2D image at the end of the day). Skybox mode requires 6 faces to apply the reflection.
I’ve found their environment reflections are also incorrect. The env setting is entirely correct, and HDR reflections are accurate when filtered through HDRFiltering. However, EXR files fail to produce correct reflections, and HDRFiltering cannot be applied to them.
This would allow this code to work to load an env texture from an EXR file: const reflectionTexture = new BABYLON.EXRCubeTexture("assets/metro_noord_1k.exr", scene, 512, false, true, false, true);