More examples here: Lego Landscapes, Lego Cubes, Lego structures.

Shape index via Effectors in Arnold Scatter: The Arnold Scatter object now reads the shape index (Modify Clone parameter) from its Effectors in the new ‘effectors’ Shape Mode. You can use Fields via the Plain Effector or Cinema 4D shaders via the Shader Effector to control the distribution of shape instances across the surface.

https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_for_cinema_4d_ci_Shapes_ci_Arnold_Scatter_html

https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_for_cinema_4d_468_html

Me trying to read the UI text in every YouTube tutorial above 720p on a 720p monitor, laptop, tablet, TV, or phone.