I’m failing at having a non-white background with objects casting shadows on the ground.
Does anyone have a solution to this?
The easiest way would be if it was possible to assign a color to the ground plane, which could then be set to match the background.
Or if there was an option that the ground plane acts like a shadow catcher plane. In the way that the ground plane itself is not visible but receives shadows.
Since both options are not available my workaround was to place a surface underneath the objects with a material, that has the same color as the background and a radial gradient (from white in the center to black towards the border) image applied to the opacity slot.
The problem here is that this surface, although given the exact same RGB-Values as the background, does not blend into the background perfectly as it is affected by the scene lighting, whereas the background is not.