Verge3D for Blender: Lighting and Rendering - Soft8Soft
rendering - make an object exclude a light source in cycles - Blender Stack Exchange
Using Portals to Accelerate your Render Times — Blender Guru
rendering - My rendered turns out extremely bright even though there is no light in the scene. The floor in the rendered view is also white. How do I fix this? -
Where does light come from in a Cycles scene without lamps? - Blender Stack Exchange