Lights
Spot light direction has no bearing on shadow casting - Lighting and Rendering - Blender Artists Community
Lighting, Shadows and Background — Blend4Web 18.05.0 User Manual
Light Objects — Blender Manual
How can I fine tune these shadows - Lighting and Rendering - Blender Artists Community
Light Object Widgets in the Blender 2.8 Viewport - Tutorial - YouTube
Introduction — Blender Manual
Light Objects — Blender Manual
Area Light — AMD Radeon ProRender
rendering - How to make a model cast shadows onto the world texture/background? - Blender Stack Exchange
Shadows — Blender Manual
cycles render engine - How can I cast artificially darker shadows? - Blender Stack Exchange
rendering - How to make a model cast shadows onto the world texture/background? - Blender Stack Exchange
6 Tips for Better Lighting — Blender Guru
Tweaking Light
Colored Shadows *on* objects (not cast shadows) - Lighting and Rendering - Blender Artists Community
Ray-Traced Shadows — Blender Manual
Spot light direction has no bearing on shadow casting - Lighting and Rendering - Blender Artists Community
How to produce soft shadows in blender - Quora
Lighting doesn't make objects cast shadows - Blender Stack Exchange
cycles render engine - How can I cast artificially darker shadows? - Blender Stack Exchange
Soft shadows and Area lights - .: Feeblemind :. Weblog
Blender Relief Tutorial: The Sun – somethingaboutmaps
