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Monday, October 20, 2008

How to shade, render, paint values drawing lesson, white cubes exercise for artist. Part 1 of 3

How to shade and render drawing lesson, white cubes gray scale exercise for artist. It is part one of the three cubes exercise. They are one white cube, one black one, and one a mid grey.

The first stage was to paint each one in isolation, starting with the lightest value, white, cube. This should be the easiest, since I know I can hit all the values I see within the available range of my oil paint. Step by step how to start sketching the initial idea, drawing, blocking in shape, background and rendering. Learn how to render and see value from the real object and apply it into your painting, illustration and concept design.

Here is Definition of Value as Munsell's Explain it.

Value, or lightness, varies vertically along the color solid, from black (value 0) at the bottom, to white (value 10) at the top. Neutral grays lie along the vertical axis between black and white.

Several color solids before Munsell’s plotted luminosity from black on the bottom to white on the top, with a gray gradient between them, but these systems neglected to keep perceptual lightness constant across horizontal slices. Instead, they plotted fully-saturated yellow (light), and fully saturated blue and purple (dark) along the equator.

Chroma (Hue, color)

Chroma, measured radially from the center of each slice, represents the “purity” of a color, with lower chroma being less pure (more washed out, as in pastels). Note that there is no intrinsic upper limit to chroma. Different areas of the color space have different maximal chroma coordinates. For instance light yellow colors have considerably more potential chroma than light purples, due to the nature of the eye and the physics of color stimuli. This led to a wide range of possible chroma levels—up to the high 30s for some hue–value combinations (though it is difficult or impossible to make physical objects in colors of such high chromas, and they cannot be reproduced on current computer displays).

*As shown in the exercise, you must put the medium gray cloth as background to get the most out of the exercise.
Here is a sketch of white cube painting: (Part one of three cubes exercise)

Watch the video White cube shading values render exercise (Part one of the three cubes exercise)

My Photoshop palette made from Munsell's value scale:

Here is an example of one of Munsell's scales:

TOOLs You'll need: *home made edition :)
And here is a printout of "white cube"
(if you cannot find wooden cube)
Print this out on a thick piece of paper then fold them together you can create a box or cube for your exercise: (click on a bigger version, then right click to save...then print it!)

Here are some tool to help you compare values on the cube while painting:
Click to enlarge. Save it then print out on a thick piece of paper.
Then cut them up into 10 pieces also cut off the circle hole to see thru.
Instruction is as in the pic below it.

Use each one to compare the value of the cube or any object, then you will really find out how dark it really is or how light it really is.

Using the value tool while you paint and study values

Continue to Part II Value study exercise.
Part III are coming soon...one at the time.

Related posted:
-Color temperature warm vs cool for artist.
-Basic Color Scheme for Artist, Monochromatic.
-Achromatic color scheme
-Monochromatic color scheme
-Analogous color scheme
-Complimentary color scheme, basic.

Drawing Software & Tools I used and recommended:
-Genius MousePen 6x8
-Wacom Intuos3 6X8 Pen Tablet
-Bamboo (Small) Pen Tablet (new from Wacom!) Economy for everyone.
-Gimp (Free Download)
-Adobe Photoshop CS2 (Professional software)
*You can just use pencil, paper, markers on this one...just practice rendering.

New tutorials:
-Concept Art tutorial, magma river lava environment.
-How to draw chibi robot Gigantor step by step
-Drawing mutant humanoid creature head
-Figure drawing technique gesture tutorial
-Digital painting tutorial technique Mecha commando
-How to paint water and mountain landscape technique
-Art tutorial, how to paint gold armor

More full length PREMIUM video tutorials
Free  Videos      Download & More

** If you have any basic questions or specific please looked up Q/A section. Most of the time your questions has already been answered in Q/A.

If you need any help or support you can
-post questions or comment on the post (seems to be the fastest way to get response)


Luca said...

brother you told me last time that you found good stuff... well it IS GOOD! Its very cool especially when you change the lighting source. Nice stuff... hope you post the next parts very soon... till then I'll keep in practicing these!

Thanks very much!


pokepetter said...

Yeah, I agree with Luca.

Thanks :D

Chris said...

Ah the white cube, how I know thee well!

XIA said...

Thanks guys. :) Hey I went all out on this post.
Though I hope you guys try it out.

Has anyone try this yet?
Post it on the community if you can.

Cheers brothers!

Anonymous said...

Very usefull, thanks for this.

Greets, Bob.

XIA said...

You are very welcome Bob. Hope you enjoy it. :)

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