Yeah, normalize give a slightly usable result though, but still not quite there yet...but guys if we too focus on clamping the highlight then wouldn't in also become impossible to get this kinda "natural" highlight overexposed on the floor? Emissive slot, huh? never read about it before cus on the UDN page example for a…
From my experience render to textures don't respect tonemapping, which can cause noticeable discrepancies. Also make sure to link your reflected textures to the emissive slot but not the diffuse.