Vray Flakes -

Then he noticed the render had rendered . In the mirror reflection of the bathroom, a figure stood behind the camera — a person with flaking, scaly skin, eyes like render noise, and a wide grin.

I think you might be referring to — likely a misspelling or shorthand for a short story, creepypasta, or technical term related to V-Ray (the rendering software) and flakes (as in snow, skin, or metallic flakes). vray flakes

He applied the material to the gold flakes. The viewport flickered. A terminal-style window popped up, then vanished. He thought nothing of it. Then he noticed the render had rendered

Marcus deleted the file, ran antivirus, even reformatted his hard drive. But every new render he made — even in fresh scenes — contained the same in some reflection, shadow, or blurred background. He applied the material to the gold flakes