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Submitted on
August 17, 2012
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1650×1423
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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 Featured By Owner Apr 16, 2014  Hobbyist General Artist
Thank you for the simple yet concrete guide to Value
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:iconwillworks:
WillWorks Featured By Owner Apr 19, 2014   General Artist
Glad you found it very helpful.  :)
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:icontheskaldofnvrwinter:
TheSkaldofNvrwinter Featured By Owner Feb 15, 2013  Hobbyist Traditional Artist
I've mostly heard 'core shadow' referred to as 'form shadow'
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:iconwillworks:
WillWorks Featured By Owner 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 Featured By Owner 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 Featured By Owner 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 Featured By Owner 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:
BrendanLearnsToSee Featured By Owner Jan 19, 2013
"...and darkest shadows the darkest"
You mean "darkest shadows the lowest [value]"?
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:iconwillworks:
WillWorks Featured By Owner Jan 20, 2013   General Artist
Fixed :)
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:iconabhimabi:
abhimabi Featured By Owner Dec 16, 2012
Every object has it colour so when light falls on it does the tone changes gradually to shade.
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:iconwillworks:
WillWorks Featured By Owner 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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:iconsirmeierlink:
SirMeierlink Featured By Owner Dec 11, 2012
I find this very helpful. Thank you
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:iconwillworks:
WillWorks Featured By Owner Dec 13, 2012   General Artist
Glad you find it helpful :)
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:iconlorenthegamer:
lorenthegamer Featured By Owner Aug 31, 2012  Hobbyist General Artist
Thank you a lot this will help me a lt!!:love::D
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:iconwillworks:
WillWorks Featured By Owner Sep 2, 2012   General Artist
Your welcome :)
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:iconnoobanoob:
NoobaNoob Featured By Owner Aug 31, 2012
THANKYOUSOVERYMUCH you made it STRAIGHT to the point. Its easy to understand and not overbearing
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:iconwillworks:
WillWorks Featured By Owner Sep 2, 2012   General Artist
Your welcome :)
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:iconxalaa:
XAlaa Featured By Owner Aug 30, 2012
Simple yet important information , Thanks a lot
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:iconwillworks:
WillWorks Featured By Owner Aug 30, 2012   General Artist
Thanks :)

I plan on doing more of these.
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:iconlil0princess0:
lil0princess0 Featured By Owner Aug 18, 2012  Hobbyist General Artist
I don't understand where does the reflection come from, is it the reflection of the ground? O.o
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:iconwillworks:
WillWorks Featured By Owner Aug 21, 2012   General Artist
In most real cases there is a dim amount of light coming from all around. One light source is the dominate making the more pronounced highlights and the shadows. If you go out side in a sunny day you can see a strong contrast between lights and shadows. However, the shadows are not pitch black. Their is still light coming from the blue sky at all angles. Because a fraction broken away from the sun light and an even smaller portion were reflected to the object the blue light is weak. This is similar physics to putting light though a triangular prism as you break the light down to other colors. This also explains why you have tone in colors were the shadows are blueish as they are reflecting the blue light from the sky that is less pronounced.

So you have light that has been reflected off of many other object like the blue atmosphere. This would mean some light can still be reflected off of the shadowy floor but the reflection can not be any where near as bright as the highlight as the light has been deluded from other objects and atmospheres. However, there is enough light, like the highlight, the little bit of surface of the sphere is close enough to the floor to gather more of this light than it neighboring surface. When it get to close then it get harder for the light to get there and you have more of a shadow crease.

I hope this helped.
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:iconlil0princess0:
lil0princess0 Featured By Owner Aug 22, 2012  Hobbyist General Artist
wow, thank you very much, i understand better now :)
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:iconwillworks:
WillWorks Featured By Owner Aug 22, 2012   General Artist
Glad that explanation helped. I may need to get into that on its own.
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:iconkingeek:
KinGeeK Featured By Owner Aug 17, 2012  Hobbyist Artist
I just Learned something Today.
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:iconwillworks:
WillWorks Featured By Owner Aug 21, 2012   General Artist
Glad to hear that :)
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