What Will This Copper Look Like Later? Forecasting Surface Appearance and Rendering It as a PBR Material

A new copper-oxidation pipeline forecasts how a fixed surface will look 10 accelerated units ahead, then turns that prediction into PBR maps for albedo, normal, roughness, and metallic. The practical takeaway is that a simple closed-form color extrapolation beat trained models on unseen specimens, making it the safer choice for authoring workflows.