Corona Version (8) In CoronaRender 6 and below CoronaLegacyMtl=CoronaMtl CoronaLegacyMtl requires Corona Renderer version 1.5 or higher, since the maps are designed to use PBR (roughness-metallic) Curtains with a cornice Height from floor to cornice 2600mm Cornice length 2600mm TurboSmooth modifier applied to the model, Render Iters 1