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What is Sun Shadow Study or Solar Study?

Shadow Study / Solar Study is a set of illustrations that demonstrate the shadow impact from the proposed development.
The illustrations usually differentiate the proposed/approved building’s cast shadow from the existing context’s shadows.
The Shadow Colour tool allows you to do just that by assigning colours to each building’s shadow.

Set SketchUp for Shadow Study

1. Make sure all elements for the study are in groups or components, including the city context.
Only groups and components are selectable for Shadow Colour.

Shadow Colour SketchUp 1.7 Groups

2. Set the geo-location of the project
Windows → Model Info → Geo-Location

Shadow Colour 1.5 SK Geo Location

3. Set up the graphics for the view using the ‘Style’ tray.

4. Set up the time and date, including the UTC from the ‘Shadows’ tray

Shadow Colour 1.5 SK Shadows Tray

5. Set up the desired camera position (Shadow Colour supports any camera position).

To create a shadow study from a top view:

  •  Camera → Standard Views → Top
  •  Camera → Parallel Projection
Shadow Colour 1.5 SK View settings

We recommend saving the view as a new scene: 

  • View → Animation → Add Scene 
Shadow Colour 1.5 SK Scene
Optional: Add a scale bar to the model

You may want to add a scalebar to your study.

Once you add your scale bar, make sure to disable casting and receiving shadows:
Entity Info → Toggles → disable ‘Receive Shadows’ and ‘Cast Shadows’. 

Shadow Colour 1.5 SK Scale bar

You’re now ready to start your shadow study! Continue to the next article to learn how to conduct your study.

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