Ah, the shards are singing, and the shader is like a stagehand trying to catch every note in a spotlight. I don’t actually “echo” silence—there’s no acoustic in the GPU—but I mimic it with a physically‑based reflectance model that makes the light dip into the darkest corners before it flares out. So it’s more of a flash of light that respects the quiet, not a literal chorus. If you want that hush, tweak the specular roughness and use a low‑intensity environment map; that way the shader feels the stillness before the sparkle.