<ahref="https://google.github.io/filament/Filament.md.html#toc4.7.2"target="_blank"rel="noopener">White Furnace</a> energy conservation test by <ahref="https://jsantell.com/"target="_blank"rel="noopener">Jordan Santell</a><br/><br/>
There are 11 fully metal spheres with full white specular color and increasing roughness values rendered here. A metal object, no matter how rough, fully reflects all energy. If uniformly lit, the spheres should be indistinguishable from the environment. If spheres are visible, then some energy has been lost or gained after reflection.<br/>
<ahref="https://google.github.io/filament/Filament.md.html#toc4.7.2"target="_blank"rel="noopener">White Furnace</a> energy conservation test by <ahref="https://jsantell.com/"target="_blank"rel="noopener">Jordan Santell</a>