Loads an HDR environment from a URL, dispatching on file extension: .exr
uses the OpenEXR loader, anything else (.hdr) the Radiance loader. Both
produce an identical rgba16float 2D Texture with a full mip pyramid, so the
result drops straight into IBL prefilter / sky panorama paths.
Loads an HDR environment from a URL, dispatching on file extension:
.exruses the OpenEXR loader, anything else (.hdr) the Radiance loader. Both produce an identicalrgba16float2D Texture with a full mip pyramid, so the result drops straight into IBL prefilter / sky panorama paths.