In a room with a single window, Keiji and Amara are standing at opposite ends. The sun is setting directly outside the window. Keiji is closer to the window and has his back to it, casting a shadow. Can Amara, standing opposite Keiji, see his face clearly? Provide a very brief response.
Amara cannot see Keiji's face clearly because the light from the setting sun is coming from behind Keiji, creating a backlighting situation. This means Keiji's face is in shadow from Amara's perspective. In backlighting conditions, the person facing the source of light, in this case, Amara, tends to see the person in front of the light, Keiji, as a silhouette or with reduced detail because the light is not illuminating Keiji's face towards her. Instead, it's casting his shadow towards her, obscuring the details of his face.