Color and Light - Ch 9
Surfaces and Effects:
When light travels through a thin material the light becomes richly colored created a stained glass effect called transmitted light.
An object like a leaf will have 4 parts to the shadow,
1. Transmitted light, with a strongly chromatic yellow-green color
2. The leaf in shadow, facing downward. This is the darkest part of the green.
3. The leaf in shadow, facing upward. These parts are blue-green because of the blue light of the sky
4. Sunlight reflecting off the top surface of the leave. This is the highest value, and the most textural, especially at the terminator.
Subsurface scattering-
Light will enter an object like skin or any translucent material and make it glow.
With skin it will add a bright glow around the fingers and will also turn the skin bright red where it is thinner
Color Zones of the Face-
Although they're subtle, the face typically has three color zones. The forehead being more of a warm yellow, the cheeks being more red, and the lower half being more gray (especially in men)
The hair secret -
Group hair into large chunks, like ribbon, and avoid over rendering it and simplify the highlights.
Caustics -
Caustics are the little waves of light that reflect through water or are focused and reflected through things like glass.
These effects don't appear underwater when its deeper than 20-30 ft
Underwater they will be cast on the top of the surface and above water they can be cast on the bottom plane of objects that are above them
Highlights -
Highlights are not just white by typically a combination of the local color and white
Highlights can help the viewer know the shape of the object or the direction that the light source is coming from
Color Corona -
A light source, like the sun, will create a golden halo around it when it is low enough, illuminating the things around it. It can make the light source seem almost brighter than the white of the paper, imitating the actual light of a sunset.
Photos are unable to capture the exact colors that our eyes can see. Plein-air studies will always be more effective in learning how color and light works and can be translated into painting
When light travels through a thin material the light becomes richly colored created a stained glass effect called transmitted light.
An object like a leaf will have 4 parts to the shadow,
1. Transmitted light, with a strongly chromatic yellow-green color
2. The leaf in shadow, facing downward. This is the darkest part of the green.
3. The leaf in shadow, facing upward. These parts are blue-green because of the blue light of the sky
4. Sunlight reflecting off the top surface of the leave. This is the highest value, and the most textural, especially at the terminator.
Subsurface scattering-
Light will enter an object like skin or any translucent material and make it glow.
With skin it will add a bright glow around the fingers and will also turn the skin bright red where it is thinner
Color Zones of the Face-
Although they're subtle, the face typically has three color zones. The forehead being more of a warm yellow, the cheeks being more red, and the lower half being more gray (especially in men)
The hair secret -
Group hair into large chunks, like ribbon, and avoid over rendering it and simplify the highlights.
Caustics -
Caustics are the little waves of light that reflect through water or are focused and reflected through things like glass.
These effects don't appear underwater when its deeper than 20-30 ft
Underwater they will be cast on the top of the surface and above water they can be cast on the bottom plane of objects that are above them
Highlights -
Highlights are not just white by typically a combination of the local color and white
Highlights can help the viewer know the shape of the object or the direction that the light source is coming from
Color Corona -
A light source, like the sun, will create a golden halo around it when it is low enough, illuminating the things around it. It can make the light source seem almost brighter than the white of the paper, imitating the actual light of a sunset.
Photos are unable to capture the exact colors that our eyes can see. Plein-air studies will always be more effective in learning how color and light works and can be translated into painting
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