Lights do not affect all objects in the scene necessarily.
You can determine which lights affect which objects directly from the Rendering menu:
- If you want to exclude an object from a light, making it also no longer cast a shadow, select the light and the object and choose
- To restore the connection, choose .
- To see which objects are affected by a particular light, open up the relationship editor through
You can check (and change) the connections in the connection editor.