This is one of the cool secrets. If you want to correct light leakage or light artifacts, or you want to have more control over light and shadow, or you want
Emissive materials are black instead of white in the diffuse light render pas - User Feedback - Developer Forum
Materials — Blend4Web 18.05.0 User Manual
Cycles Mesh Emission Too Noisy For Production - Lighting and Rendering - Blender Artists Community
Emission — Blender Manual
What a nose! - Funny Dance
light - Eevee emission reflections disappear when out of view - Blender Stack Exchange
The difference between the holdout and transparency shader. I created a list containing 70+ sites with free resources for 3D artists. You can download
shaders - Is there a way to limit the distance travelled by an emission ray? - Blender Stack Exchange
Negative light and emission in Blender : r/blender
