Thread: OPEN BETA - Open beta TWOTLD - Days 7, 8, and 9

^^And the learning continues...thank you. Do you know the reason why some shadows are softer than others in the same room where the only light source is coming through the window (via the sky...from a great distance?)? Where does the sky start in these equations (e.g. the air right outside of the room or hundreds, perhaps thousands of meters up)?

I found this description at http://www.ehow.com/about_5470956_diffused-light.html

"What Is Diffused Light?...It is scattered and comes from all directions."

"What Causes Light Diffusion?

• When a light beam strikes a smooth surface, most of it reflects back in the same concentration. This is specular reflection, which gives us direct, bright light. A mirror is a common example of a smooth surface that causes specular reflection. 

What happens on a rough surface? Even microscopic irregularities create roughness. The law of reflection is not broken. Each ray reflects back at the same angle at which it struck the object but in a different direction. So diffuse light is scattered light. This scattering is what causes the diffusion and softness of the light beam."