How do I render my objects against a clean white background but retain the shadows cast by them?
Set up your scene as you want it and make sure that those lights that are supposed to cast shadows have shadows enabled. Then give your Floor object a white material and a Compositing tag (Objects Manager: File > New Tag). The Compositing tag is what will do the trick. Just check “Compositing Background” and make sure that “Receive Shadows” is checked as well. This will render your scene with a completely white floor that still receives shadows from your objects. If you don’t want any shadows simply uncheck “Receive Shadows” this will still shade your objects but the floor will not receive any shadows.
