Friday, 16 November 2018

Color and Light - Atmospheric Effects Chapter 10 + 11

SKY BLUE

  • The sky is not a flat even blue 
  • looking in the vicinity of the sun much more golden green 
  • looking away from sun much cooler, purple blue 
  • sky gets lighter near the sun 
ATMOSPHERIC PERSPECTIVE

  • objects at a distance are brighter and dimmer because of all the atmosphere between you and them 
  • Warm colors advance, cool colors recede 
REVERSE ATMOSPHERIC PERSPECTIVE 
  • cool colors advance, warm colors recede 
  • rare
GOLDEN HOUR LIGHTING 
  • at dawn and at dusk 
  • colors become bold and dramatic because sun shines through an ocean of air 

SUNSETS

  • if the air is full of moisture and dust, red and yellow clouds 
  • light hitting clouds remains relatively white compared to light hitting the ground 

FOG MIST SMOKE DUST 
  • contrast drops 
  • soft cast shadows 
  • blue illumination from the sky 
SKY HOLES AND FOLIAGE 
  • when painting leaves use selective detail 
  • kinda like hair 

SUNBEAMS AND SHADOWBEAMS 
  • sunbeams are shafts of light made visible in dust or moisture from the atmosphere  
  • they have to go through something 
  • shadow beams occur most often when a jet contrail aligns with the line of sight 
DAPPLED LIGHT 
  • as sunlight passes through upper leaves it leaves dappled pattern in the shadows 
  • spaces between leaves act as pinhole projectors
  • if sun was eclipsed little eclipsed shapes 
CLOUD SHADOWS 
  • Passing clouds interrupt the sun 
  • shadow area is darker and cooler than sunlit area but not as much of a blue cast because light entering shaded area is average of blue light and white light from cloud layer 
  • soft edge 
  • size and spacing matches the clouds in the sky 
SNOW AND ICE 
  • pick up more shadow color and light 
WATER REFLECTION AND TRANSPARENCY 
  • can see through the water better closer to you than farther away 
  • darks reflect on water too.  depends on how dirty the water is how they show up 
  • cast shadows not over deep clear water 
  • cast shadows do go over deep dirty water 

COLOR UNDERWATER 

  • water filters selective colors, leaving a blue cast 
  • various impurities can discolor the water 












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