Degradation textures (grain, scanlines, chromatic-aberration, dither) place a piece in a glitch/retro-crt/vaporwave idiom; clean noise/voronoi signals organic
The choice of texture type is a strong genre signal. The degradation family — grain-glitch, scanlines (CRT raster lines), chromatic-aberration (RGB channel split), dither (Bayer patterning), and pixelate — are culturally coded to glitch art, retro-CRT, vaporwave, and lo-fi aesthetics. Using any of them strongly implies that idiom to the viewer. Clean noise and voronoi-cells, by contrast, signal organic, natural, or generative-systems aesthetics. This is a compositional decision, not merely a technical one: layering scanlines and chromatic-aberration onto a piece is a statement about genre, not decoration. Mixing idioms (clean organic noise + heavy scanlines) creates tension that may be intentional or may read as incoherent.
Examples
scanlines + chromatic-aberration = immediate vaporwave/retro-CRT read. noise-field + voronoi + blur-soften = immediate organic/generative read. The texture palette determines genre before the audience reads color or motion.
Assessment
A performer adds heavy chromatic-aberration and scanlines to an otherwise smooth organic noise patch. Describe the genre conflict created and explain whether this is always a problem or can be used intentionally.