SUN PATH DIAGRAM

Sun path Diagram Tutorial

Share how to create sun path diagrams, applicable for :

  1. Urban design diagram

  2. Architectural diagram

  3. Site diagram

  4. Shadow diagram

  5. and more

Reference Diagrams

Softwares used:

  1. SketchUp: Modeling and editing sun paths, winds, views, etc.

  2. Photoshop: Editing images exported from SketchUp, creating animations for the sun and wind.

All files (2D + 3D) used in the tutorial are included

2D files used in the tutorial (e.g., temporary files exported from SketchUp and files for animation with Photoshop) – Free

Link direct

3D files used in the tutorial (e.g., SketchUp files for 3D sun path, model houses, symbols, etc.) – (Available in Stage 2)

Link download at Gumroad

or

Link download at Ko-fi

Some completed projects, documents available for download

My portfolio

Tutorial (step-by-step guide and videos):

  1. Determine the coordinates of the location research
  2. Add location for model research with coordinates ( in SketchUp software)
  3. Add Sun path and customize with coordinates
  4. Set up the scenes to export files and motion shadows
  5. Export shadow animation
  6. Create motion for the Sun ( in Photoshop software)
  7. Final results

Let’s get started !

[STEP 1 ]

I. Determine the coordinates of the location research

  1. Let me take an example, the customer sent me the address of the area to be researched: 5 Ivory Curl Place Bangalow NSW 2479
  2. Use google map to get coordinates of that location:
[STEP 2 ]

II. CREATE SUN PATH USING SKETCHUP SOFTWARE

  1. Open file 3D-HOUSE.skp
  2. Add location for file: File/ Add location / paste coordinates (received in step 1) in address / Set Geolocation.
  3. Move the project to the correct map image. Then, Import context.
  4. In this diagram I don’t want to see the satellite image so I turned off the layer.
[STEP 3 ]

Add Sun path and customize with coordinates

  1. Import 3D Sun path in file: File/ import/ Browse and select files: 3D-SUNPATH.skp, please download the file at the link, it will cost a small fee, please support me, thank you very much(download at link https://ko-fi.com/s/f12806685f )
  2. Customize sun path according to project coordinates (received in step 1) : Turn on the protractor of Sun path. Open the Sunpath group, open the first layer. Place the protractor at the center of the arrow (as shown in the image) and rotate it to an angle equal to the first number of the coordinates (it is Latitude). In this example, it is a negative number because the location of this area is in Australia (south). hemisphere)\
  3. Turn off the protractor to clean up the diagram
[STEP 4 ]

Set up the scenes to export files and motion shadows

  1. Switch the camera to Parallel projection
  2. View angle adjustment: clear visibility of the sun’s path and the object to be studied.
  3. In the Scenes tab, press the (+) button to create a scene. I named the scenes camera.
  4. I’ll be exporting shadow video from 6am to 6pm, so I’ll set up one scene at 6am and one scene at 6pm. In the Scenes tab, press Add to create a scene. I named the scenes DEC-6AM. Do the same for the scene at 6pm
  5. Do the same for the scenes in June and September (These are important times of the year)
  6. I will set the transitions time from scene 6am to scene 6pm to be 12s corresponding to 12 hours. Window / Model info / Animation / Scenes transitions
  7. Select only the scene to export. Here, I select the DEC-6AM and DEC-6PM scenes and check “include in animation” (note that other scenes must have this check mark removed)
[STEP 5 ]

Export shadow animation (SketchUp 2023)

  1. Sketchup 2024 is having an bug that cannot export animation videos. And the current time is 1.2025 and there is still no update to fix this bug. So I will save the file and open it in Sketchup 2023 to export the video.
  2. File/ Export/ Animation
  3. Recheck the video export options, Resolution 1080 or custom to export higher resolution. Uncheck “Loop to starting scene” to make the video lighter and avoid confusion.
  4. Similar animation exports: June and September
[STEP 6]

Create motion for the Sun ( in Photoshop software)

  1. Open Photoshop software
  2. Open video file (just rendered in step V)
  3. Temporarily turn off Timeline mode: Window/ Timeline
  4. Create a new layer and drag it to the top
  5. Add text to the diagram (refer to SketchUp file: enable tag “Name Sunpath”)
  6. You can add stroke to text to make it more visible in diagrams.
  7. Merge all layers into 1 object (for easy management) Convert to smart object & and name it, i named it Sun path
  8. Turn on Timeline mode: Window/ Timeline
  9. Drag the timeline bar of the sun path to the same length as the video (12s)
  10. Drag the sun object into the file (Sun.png) then resize it to fit the diagram.
  11. You can make the Sun object a little transparent
  12. Drag the timeline bar of the sun object to the same length as the video (12s)
  13. Click the clock icon in Transform to save the keyframes
  14. The video is 12 seconds long, which represents 12 hours. The start point of the timeline corresponds to 6am, the end point corresponds to 6pm, and the midpoint corresponds to 12pm.
  15. Simple with 8am, 10am, 2pm, 4pm milestones
  16. Press play on the timeline to see the results.
[STEP 7]

Final results

  1. Save file Photoshop before rendering.
  2. Rendering video: File/ Export/ Render video
  3. I set the format to H.264 and the size to 1080p
  4. Then press Render and wait for the result.Do the same for September and June

Doing the same with the 2 months March/September and December, we get the product:

Sun path Diagram at June 21st

Sun path Diagram at September/ March 21st

Sun path Diagram at December 21st

Thanks for watching !