Light on FormThe six things one light does to one solid, in the order you meet them.Art & DesignOne light, one sphere, six distinct events.On the formHighlight - direct reflection of the sourceLight - the plane facing the sourceHalftone - the plane turning awayCore shadow - dark band at the turnReflected light - bounce inside the shadowOff the formCast shadow - the form blocking the lightContact shadow - darkest where they touchOcclusion - crevices no light reachesAmbient light - fills the unlit planesBackground - lighter or darker by contrastJudging itSquint until only two values remainShadow shapes before shadow tonesCompare, never name, a valueThe terminator is where the form turns from the light. The cast shadowstarts somewhere else, and the two edges differ.Light on Formlearnposters.com
Light on Form — printable design wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Light on Form poster

13 entries in 3 groups.

One light, one sphere, six distinct events.

The terminator is where the form turns from the light. The cast shadow starts somewhere else, and the two edges differ.

Questions about the Light on Form poster

What’s on the Light on Form poster?
13 entries in 3 groups. One light, one sphere, six distinct events. On the form: Highlight - direct reflection of the source, Light - the plane facing th…; Off the form: Cast shadow - the form blocking the light, Contact shadow - darkest whe…; Judging it: Squint until only two values remain, Shadow shapes before shadow tones, C…. The terminator is where the form turns from the light. The cast shadow starts somewhere else, and the two edges differ.
Who is the Light on Form poster for?
Light on Form belongs to the Art & Design section rather than to a school year, because design is not something one grade owns. Anyone learning drawing can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Light on Form poster?
Use it when a rendered object still reads flat despite plenty of tone on it. A wall chart earns its place by being glanceable from where the work is happening, so Light on Form belongs on the wall where that design work actually happens, within glancing distance, rather than filed away.
What other posters go with Light on Form?
The Value Scale, Blocking In and Cast Shadows sit alongside Light on Form in the Art & Design section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.The Value ScaleBlocking InCast Shadows
Is the Light on Form poster free to download and print?
Yes. Light on Form downloads as a free PDF with no account, no email and no watermark, like everything else in the Art & Design section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Light on Form poster print at?
Light on Form is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Light on Form loses nothing.Printing guide

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