I have changed the element rectangle to "Gold" material, but in "Realistic" view, it didn't shown the "Brass- Polished" look like the image. Why? I am using Revit 2020. Thanks.
Reflective materials will never look like their appearance preview in realistic visual style. You need to render the scene, or use matte materials instead.
@pe_simon You would need to render the view if you would like that level of detail. The rendering engine is more powerful at processing more information such as reflections and lighting. you may want to consider using Twinmotion or Enscape if you want a rendered view to fly around in.
