eMirage - quick tip : Volumetric light rays with Blender Cycles. 1-create a box adjust its shape and assign to it a new material 2-create a sun lamp, change the sun's color
cycles render engine - How to make a sharp shadow? - Blender Stack Exchange
How Light Size Affects Shadows in Blender - Monstabot
Spot Buffered Shadow — Blender Manual
blender internal render engine - Unwanted sharp shadows when using a point lamp - Blender Stack Exchange
How to setup a HDRI to get sharp shadows ? - Lighting and Rendering - Blender Artists Community
cycles render engine - Making very hard shadows softer? - Blender Stack Exchange
Blender change shadow intensity and color with the Compositor
Eevee Essentials: Real-Time Rendering in Blender (Basic and Advanced Techniques) - CG Cookie | Learn Blender, Online Tutorials and Feedback
How To Make Sharp Shadows In Blender 2.81 | Blender Shadow Fix EEVEE | High Quality Shadows Blender - YouTube
How do I create softer shadows? : r/blender
some edges seem very sharp and odd in blender cycles shade smooth. OBJ + more info provided in replies : r/blenderhelp
Cycles vs. Eevee - 15 Limitations of Real Time Rendering in Blender (2021 Update) - CG Cookie | Learn Blender, Online Tutorials and Feedback
Can Eevee shadows look like Cycle shadows? - Lighting and Rendering - Blender Artists Community
blender internal render engine - Rendered Shadow is not sharp - Blender Stack Exchange