Hello!
Noticed an issue when rendering environment maps in our scene, which is that the diffuse irradiance spherical harmonics generated through CubeMapToSphericalPolynomialTools.ConvertCubeMapTextureToSphericalPolynomial are incorrect when using the `R11G11B10F` format. Maybe I’m doing something wrong in my repro, but I think I’m assigning all parameters correctly.
See repro here: Babylon.js Playground
There’s a bool at the top to flip between R11G11B10F and RGBA16F, where the latter case renders the results I expect. I also log in the console a value that is correctly 1 in the latter case, but strangely close to zero in the second case. You can also see it in the 2 spheres, where the left sphere is metallic (and shows correct specular) where the sphere on the right which is mostly diffuse is black when using R11G11B10F.
I haven’t looked deeper into this issue as I haven’t had the time, but thought I’d report it at least 
//Tore