AR app displaying car 3D model

Implemented this app using Reality kit framework.

User has to scan the surrounding, once the horizontal surface is detected then user has to tap on the surface to place a 3D car model. Once the model is placed, surface scanning stops and a UI is populated with 3 spheres, each representing a different materials such as one sphere with a glass material, second sphere with a metallic material and third sphere with custom texture.

When the user clicks on any of the three spheres, the body paint of the car 3d model changes and same material is applied as that of sphere.