Renderman Brass Lota

GitHub Repo: https://github.com/Gabrielazmbr/Renderman_Brass_Lota
The main challenge was matching the real lota’s aged brass appearance, where each section has different engraving, roughness, scratches and oxidation. The vessel was reconstructed procedurally from a traced profile using stacked RenderMan Hyperboloids, then divided into six material zones. Custom OSL shaders recreated the zone-specific brass response, surface wear and displacement, while photograph-derived maps preserved the original engraved decoration. Reference-matched lighting completed the result by revealing the material variations and comparing them directly with the real object.