Iridescent PBR car with dual HDRI theme switching, bloom postprocessing and GSAP UI

A 3D automotive showcase featuring an iridescent MeshPhysicalMaterial car with dual HDRI environment maps that switch between warm (Inferno) and cool (Glacier) themes. Includes UnrealBloom + AfterimagePass postprocessing, a custom GLSL background shader with animated grain, floating + mouse-tracked model animation, and a fully animated UI built with GSAP character-level text splits and a frosted glass nav.

Live https://vintage-car-experiment.onrender.com/