This 3D model have two prepeared color styled materials in native Cinema 4d project- where you can tweak between them just with one slider in the upper right corner of the screen! Model is unwrapped and materials consists of noise based layers in channels: Normal, Bump, Displacement, Reflectance (this channels is converted to the 2K resolution textures for you can use it in another 3D application). What about color channel- there is tweak with Lumas effect in Cinema 4d with gradients in Luminance and Diffusion channels.Exported format is : FBX, OBJ, ALEMBIC.Also i the Cinema 4D project you will see the Annotation for this project for help!