Rust, dirt, mud splatters, and winter frost are now procedurally generated. Drag the "Aging" slider on a concrete wall to add water stains. Drag "Snow Accumulation" to make an angled roof hold realistic snow drift (while flat surfaces get less). No geometry painting required.
The "Pro" distinction here matters. Standard users get generic assets; Pro users get brand-specific, high-poly assets suitable for 4K close-ups. Lumion Pro 2024