Calculating Shadows on 4 forms

  • Due No Due Date
  • Points 4
  • Submitting a text entry box or a file upload

lightbulb.png Objective: learn to calculate the shape of a forms, shadow.

Why: The shadows on an object show where the light is coming from. Without shadows objects look like they are floating. When drawing from imagination you do not have a shadow to look at. You can calculate where it should be. 

Standard: Elements and Principals of Visual Art, Create.

Calculating Shadows

directions.png Print out or get a worksheet from me.

Download shadow shapes-1.pdf

Following the instructions in the following file, draw the shadow on each of the 4 forms. This file works best if you show the PowerPoint in slideshow mode. It will draw each line for you one at a time, which is much less confusing then getting all the information at once. 

Calculating Shadows.pptx Download Calculating Shadows.pptx 

Turn in your work, photograph or scan it and submit it on canvas, or bring it to class and submit it. 

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Rubric

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Shadows
Shadows
Criteria Ratings Pts
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Description of criterion
threshold: pts
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4 pts
Full Marks
All shadows drawn accurately, and shading done accurately.
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3 pts
competent
All shadows drawn mostly accurate, and shading attempted. With some accuracy.
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2 pts
Approaching Competence.
Shadows done with lots of help and still not all accurate or drawn with several mistakes but looks similar to how the shadows should look.
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1 pts
Tried
Drew several lines that look like they might be for a shadow, but most of them are not accurate.
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0 pts
No Marks
Less than 3 accurate lines.
pts
4 pts
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Additional Comments
Total Points: 4 out of 4