Tannis Ewing's

Anatomy of a 3D Sidewalk Chalk Drawing

From the Viewpoint

"How to" Suggestions:
A Technical Approach

Table of Contents


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On the Right: A completed sidewalk chalk drawing as seen from the actual viewpoint. This is the drawing that is used as an illustration in the instruction set above.

Viewed from the Side

The completed sidewalk chalk drawing seen from a side view.

The 3D drawing expert, Julian Beever indicates that the most effective way to view a 3D Sidewalk Drawing is through the lens of a camera, mounted at the viewpoint.

Master Grid

The instructions in the Table of Contents above include directions for setting up a master grid for your model.

Vanishing Points

You need to get your vanishing points organized. Instructions are included.

Spreadsheet Definitions

Instructions include a spreadsheet and the definition of the variables involved. If you want to just wing-it, without doing calculations, you can do that too!

Getting Ready for the Perspective Stretch

The model in progress: What it looks like before you do the Perspective Stretch.

After the Perspective Stretch

The model in progress: What the model looks like AFTER you do the Perspective Stretch.
Caveat: there should be a red grid on top of the green grid! Don't be fooled by my drawing!

This distorted drawing (left) represents what you should put on the sidewalk to make the image look like it's standing up.

Out On the Sidewalk

And then you have the fun of drawing it on the sidewalk! See the information file above, labelled "Out on the Sidewalk".

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