Sun Diagram is an extension for creating 3D sun paths and analyzing sunlight in architectural projects.
The plugin has 04 core features.
1. Create Sunpath from Coordinates (Feature 1)
Generate a 3D Sunpath by entering your project’s location
Choose input methods:
Option A – From Model: Use the project coordinates
already embedded in your SketchUp model.
Coordinates can be preloaded via File -> Add Location.
already embedded in your SketchUp model.
Option B – Manual Input: Manually enter latitude and longitude.
Coordinates can be copied directly from Google Maps or any map service that provides coordinates (format example: 26.2649, -81.6255).
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Enable Daylight Saving Time (DST) for more accurate analysis in regions with seasonal time changes..
(Click the image to access the tutorial video)
2. Create Shadow Analysis (Feature 2)
- Simulate shadows and sun positions instantly for any selected time frame — no guessing or manual setup.
- Automate your workflow and prevents UTC errors in regions with Daylight Saving Time (DST)
- Select the date and time, click Apply.
=>The Sun position and shadows will
update instantly and accurately.
- Export updated views to share with clients..
(Click the image to access the tutorial video)
3. Export Shadow Analysis (Feature 3)
- Batch export shadow and Sun position images with a single click.
- This is an automated workflow using Feature #2 (Create Shadow Analysis)
for any time frames you want to study and export as images.
- Select time range and image size, then click Apply → the system generates all images automatically.
- Combine exported images into a video (CapCut, Photoshop, After Effects) or merge into a PDF for easy review..
- Use visual simulations to help clients instantly understand your lighting design.
(Click the image to access the tutorial video)
4. Style Library (Feature 4)
- Find the perfect style for your project — instantly, with just one click.
- Activate a style to load it into your model and auto-adjust Sun Path layers (tags).
- Includes 9 styles for diagrams and 3 styles for the compass.
The Free version includes 2 clean, beautiful styles that fit most needs.
What You Can Do with Sun Diagram:
- Shadow diagram
- Solar study
- Shadow analysis
- and more
Explore Diagrams Created with Sun Diagram
Get Sun Diagram:
Sun Diagram
✔️Generate a 3D Sun path by simply entering coordinates
✖️Support DST (Daylight Saving Time)
✔️Create Shadow Analysis (June and December only)
✔️Export Shadow Analysis (December only)
✔️Style Library for your diagrams (02 Styles)
Available on SketchUp Extension Warehouse
Alternative download via Google Drive
Sun Diagram (pro)
✔️Generate a 3D Sun path by simply entering coordinates
✔️Support DST (Daylight Saving Time)
✔️ Create Shadow Analysis (June and December, September)
✔️Export Shadow Analysis (June, December, September)
✔️Style Library for your diagrams (09 Styles)
Buy now on Gumroad
Lifetime license included
✔ One-time activation only (<1 min internet needed)
✔ Fully offline forever after activation
✔ Try the Free version first – if it works, Pro will too
✔ 7-day money-back guarantee: Contact us if it doesn’t work – we’ll help or refund
Sun Diagram is developed by Febhouse.
The Free version is officially available on SketchUp Extension Warehouse.
The Pro version is licensed and distributed via Gumroad with secure payment processing.
📩 Support: info@febhouse.com (response within 24h)
Compatibility: SketchUp 2020+ on MacOS & Windows
Versions: 3.5 (20260206 Updated)
✨ Highlights of this new update:
✔️ Smart Time Zone Engine: Enhanced algorithm with “Regional Overrides” to accurately handle locations where political time differs from solar time (e.g., Western Europe, China).
✔️ Flexible Time Zone Setup: New global time zone dropdown menu; users can now choose between Auto-detection or Manual override for projects located near time zone borders.
✔️ Vertical Resolution Support (9:16): Added vertical export options (FullHD_V, 2K_V, 4K_V) specifically designed for mobile presentations and social media (TikTok, Reels, Shorts).
✔️ Modernized UI/UX: fully optimized for a seamless experience in SketchUp 2026
Legacy Changelog
V3.4 (2025-11-25)
✨ Highlights of this new update:
✔️ 3D Sun Path: Added a yellow 3D Dome surrounding the Sun Path.
✔️ Assigned the Dome to a new tag named Feb_Dome.
V3.3 (2025-11-14)
✔️ Improved Style: Added Style 09 Pro
✔️ 3D Sun Path: Text on the Sun Path is now bold for better visibility.
V3.2 (2025-09-16)
✔️ Improved Style: These updates make your sun visuals clearer and models easier to view, with no changes to how the plugin works.
V3.1 (2025-08-16)
✔️ Updated the control panel UI for clarity.
V3.0 (2025-07-30) Major Update
✔️ Improved interface with a new toolbar
✔️ Optimized performance and faster image export
✔️ New feature: Style Library for your diagrams with instant style switching
✔️ Fully redesigned user interface.
V2.4 (2025-04-19)
✔️ Sun Path now displayed with dashed lines in any SketchUp STYLE.
✔️ Added Compass Style 2 and 3, fully vector-based and selectable in the Tag (layer) panel.
✔️ Export images at unlimited resolution – ensuring sharp, high-quality visuals for printing and presentations.
Or install Sun Diagram directly from Extension Warehouse in SketchUp.
Here’s a quick step-by-step guide (under 2 minutes): https://www.youtube.com/shorts/IHjVPbIapvw
How to use Sun Diagram in SketchUp
▶ Watch a 2-minute real workflow demo
See how Sun Diagram is used in a real SketchUp workflow for sunlight and shadow analysis
Advanced tutorial: Real Project Site Analysis Using Sun Diagram and Dynamic Symbols
Learn how to analyze a real site using Sun Diagram together with Dynamic Symbols for professional projects
Frequently Asked Questions & Documentation
If you run into any problems while using or installing, please check the FAQ first.
What is Sun Diagram used for?
Sun Diagram allows you to analyze sunlight, simulate shadow movement over time, and understand daylight conditions directly inside SketchUp.
Which SketchUp versions are supported?
Sun Diagram support SketchUp 2020 and above (Windows & macOS).
Are there Sun Diagram and Sun Diagram (Pro) versions?
Yes. The plugin is available as Free version on the SketchUp Extension Warehouse, and as Pro version distributed through Gumroad.com with additional features.
Check the difference between the Sun Diagram and Sun Diagram Pro versions here: https://sundiagram.com/#download
What do I receive after purchasing Sun Diagram Pro?
After purchase you receive a ZIP folder containing: the .rb installer file, installation instructions, a user guide, and a license key (visible in your Gumroad order and emailed to you).
How do I install Sun Diagram plugin?
Sun Diagram
- Open SketchUp → Extension Warehouse
- Type “Sun diagram” in to the search bar. Look for the official plugin by Febhouse
- Click “install”
- Or please see the installation instructions at the link https://www.youtube.com/shorts/IHjVPbIapvw
Sun Diagram (Pro)
- Open SketchUp → Extension Manager.
- Click Install Extension and choose the
.rbfile from the ZIP. - Follow any on-screen prompts. Installation is straightforward for both Windows and macOS.
- Or please see the installation instructions at the link https://www.youtube.com/watch?v=23eCdjy7UzA
Can I use the plugin for commercial projects?
Yes. Both Free and Pro versions may be used in commercial work and client projects.
Can I share the plugin with colleagues?
No. Licenses are issued to individual users. Redistribution, resale, or sharing the plugin files is not permitted.
Can I use the plugin on multiple machines?
License Usage
The lifetime license is for one user (you). You may install the Pro version on multiple personal machines (e.g., desktop, laptop) for your own use only.
Concurrent use on multiple machines by different people, or sharing the license key with others, is not allowed. We reserve the right to revoke or lock the license key if we detect violation of these terms.
How are purchases processed?
All Pro purchases are handled securely by Gumroad.com (credit card, PayPal, etc.). Febhouse does not store payment details.
Do you offer refunds?
7-day money-back guarantee. If the Pro version doesn’t work on your setup (after trying the Free version), simply contact us by replying to your purchase receipt email. We’ll troubleshoot with you or issue a refund promptly.
(Note: Refunds processed minus small payment processing fees ~10%.). To request a refund, email info@febhouse.com with your Gumroad order details.
I installed it but the interface doesn’t show. What should I do?
Ensure:
You are using SketchUp 2020+
Extensions are enabled in Preferences
If the issue remains, please contact support.
When I tried to enter the code into the software, I received an error message: Activation Error: "SSL_connect"
This “SSL_connect” error usually isn’t about your code being wrong; it often means your local network or computer settings are blocking the connection needed to verify the license.
Please try the following steps to resolve this:
1. Check Date & Time: Make sure your computer’s system date and time are accurate.
2. Try a Different Network (Crucial Step for Company Users):
Reasoning: Large companies often use proxy servers and firewalls that block the secure connections (SSL/TLS) required for software activation.
Action: Please try connecting your computer to a different internet source (like a mobile phone’s hotspot/mobile data or home WiFi) and then try activating the license just one time. Once activated, you won’t need to do this again.
3. Verify SketchUp Version:
Make sure you are using official SketchUp.
I used Function 1 (Create Sun Path from Coordinates), but I only get the sun rings and time labels
Please copy your 3D model (select all → Ctrl+C) into a completely new blank SketchUp file (Ctrl+N), then run the “Create Sun Path from Coordinates” function again.
Your current file likely contains a lot of junk data (hidden geometry, unused components, tags/layers issues, etc.) that interferes with the plugin’s sun path generation. Starting in a clean file almost always solves this problem.
Why does the Sun Diagram plugin only show a limited number of months/dates (e.g., June, September–March, and December) instead of all 12 months?
The Sun Diagram plugin deliberately uses only the most important and internationally recognized key dates for shadow studies.
To accurately represent the full range of shadow conditions throughout the entire year, only three key dates are truly necessary:
- June 21 – Summer Solstice (Northern Hemisphere) / Winter Solstice (Southern Hemisphere)
→ Sun at its highest (or lowest) position → shortest (or longest) shadows of the year. - December 21 – Winter Solstice (Northern Hemisphere) / Summer Solstice (Southern Hemisphere)
→ Sun at its lowest (or highest) position → longest (or shortest) shadows of the year. - March 21 & September 21 – Spring and Autumn Equinoxes (same for both hemispheres)
→ Sun rises exactly east and sets exactly west → medium-length shadows that represent the “in-between” conditions.
Why these dates are sufficient:
- They represent the extreme and midpoint solar positions.
- Every other day of the year falls somewhere between these extremes, so the shadows will always be within the range shown by these dates.
- These dates are the global standard in architecture, urban planning, and building regulations worldwide (used in most planning approvals, environmental assessments, etc.).
- Showing all 12 months would be redundant and visually cluttered without adding meaningful new information.
- This approach saves time while remaining fully accurate and professionally accepted.
Where can I download free sample files that use this plugin?
You can download several free sample files (demonstrating the Sun Diagram and Dynamic Symbols plugins) from the following places:
- Our official website: https://archidiagram.com (look for the “Free Samples” or “Download Samples” section)
- Our Instagram highlights/reels: instagram.com/febhouse_com (links are usually in the bio or stories)
All of these sample files can be opened directly in SketchUp without needing the plugins installed beforehand — they’re perfect for seeing the final results and exploring how everything was created. Enjoy! 😊
If you didn’t find the answer you were looking for, feel free to reach out.
We’re here to help.
Developed by Febhouse Studio
Sun Diagram is developed by Febhouse, Learn more at ArchiDiagram.com
Thanks for watching !