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Submitted on
August 17, 2012
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Tutorial Value by WillWorks Tutorial Value by WillWorks
I doing this style again until I get some better understanding of AS3. Then I will make a very dynamic turorial. Also I am going back to the brown paper.


Value: The Degree of lightness or darkness of a surface. High value is light and low value is dark making highlight the highest value and darkest shadows the lowest value.

Light: The high value that illustrate the more exposure to a light ray.

Shadow: The low value that illustrate the least exposure to a light ray.

Shading: The low value on the object that illustrate the least exposure to a light ray.

Highlight: The surface with the highest value in an object.

Core shadow: The darkest surface in the shading. It is between the light and the Reflected light.

Cast Shadow: A region on a surface that has low value do to another object blocking the light ray.

Reflected Light: A reflection of light from one surface to another. An indirect light source.
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:icondragonflysunning:
Dragonflysunning 2 days ago  Hobbyist General Artist
Thank you for the simple yet concrete guide to Value
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:icontheskaldofnvrwinter:
TheSkaldofNvrwinter Feb 15, 2013  Hobbyist Traditional Artist
I've mostly heard 'core shadow' referred to as 'form shadow'
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:iconwillworks:
WillWorks Feb 18, 2013   General Artist
That is interesting. I usually found it to be called the core shadow. Where did you recall it being called form shadow? I think form shadow is another way of saying shading.
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:icontheskaldofnvrwinter:
TheSkaldofNvrwinter Feb 21, 2013  Hobbyist Traditional Artist
a book by the painter Lee Hammon, the part about practicing painting a sphere...and in many books on drawing with pencil. Anything on the opposite side of the light course is a form shadow--or core if you want to use that term. Cast shadow I think is pretty universal.
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:iconwillworks:
WillWorks Feb 25, 2013   General Artist
One book I got The Art Of Perspective from Phil Metzger called the area shading that some other diagrams call form shadow. The core shadow is the darkest shadow following the crevice shadow (the crevice shadow is the darkness between to surfaces). It is the darkest spot between the lighter shadow near the light and the reflected light. All core shadows are shading (or form shadow) but not all of the shading/(form shadow) are the core shadow.
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:icontheskaldofnvrwinter:
TheSkaldofNvrwinter Feb 15, 2013  Hobbyist Traditional Artist
A painter in a book said cast shadow was always the darkest, amazing to me since form shadow is on the opposite side of the light, anwyay...
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:iconbrendanlearnstosee:
"...and darkest shadows the darkest"
You mean "darkest shadows the lowest [value]"?
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:iconwillworks:
WillWorks Jan 20, 2013   General Artist
Fixed :)
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:iconabhimabi:
Every object has it colour so when light falls on it does the tone changes gradually to shade.
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:iconwillworks:
WillWorks Dec 22, 2012   General Artist
Yes if say the surface is red and the lighting is blue it would lean more to red. The lighting would have a less green color reducing the cyan in the reflection. And if the lighting is red but the surface is green it would almost not show as the green surface would absorb just about all the red light.

I plan on getting to color. But long story short there is additional color and subtractive color. Addition color is from light sources like the sun or a light bulb or computer monitor. But subtractive is the light that is the light that is allowed to reflect of the surface as apposed to being absorbed. Black surfaces absorb just about all lighting while white reflects just about all lighting.

I plan on getting more into that detail later.

Last I hope that answers you question.
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