1001Sky Ratio
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1001Shadows in English!

1001Shadows in English is now available! This tool is free for 14 days trial. You will need to have valid license to continue using the tool after the trial period.


1001Shadows is a plugin for Google Sketchup that generates a series of shadow outlines from a start time to end time with user defined intervals.
  1. Simple operation - set the latitude, start-end time, interval and generate the shadow profiles

  2. Cross platform compatibility - Works in Sketchup Standard and Pro version, as well as Windows and Mac

  3. Capture shadows for export - Shadow profiles are generated in edges or faces(solid shadows) that can be exported to other CAD programs.

  4. Click here for Free 14 days Trial of 1001shadows.


1001shadows allows architects and planners to analyse effect of light and shadow from a potential new development.

Point shadow duration - The duration where a certain point fall under shadow can be analysed.
Solid shadows generation - 'Freeze time' by generating solid shadows for selected durations. This is ideal for visualizing the effect of shadows on surfaces through time.
Sky exposure - Pick a point to analyse the extent of exposure to open sky.
Shadow profiles of each session are grouped separately by time and placed on a common layer
Table of shadow angle projection are listed in a .csv file. The layer name is recorded on the data sheet to facilitate cross referencing with the SKP file.

1001shadows FREE TRIAL for 14 days

Download 1001Shadows
1001shadows will stop working after the14 days trial period. If you find 1001shadows useful and wish to continue using it after the trial period, please register for a user license.
Click here to BUY 1001shadows user license

1001shadows (Japanese)
1001shadows website in Japanese

1001bit Tools
Visit 1001bit Tools - collection of plugins dedicated for architectural works (available in various languages)

Contact us
All enquiries, ideas, comments are most welcome.