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.
Why is the DST function important?
See How It Works ▶️
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..
See How It Works ▶️
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.
See How It Works ▶️
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.
See How It Works ▶️
⭐This advanced feature is exclusively available in Sun Diagram Pro/Studio.
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
❌ No DST Support (Daylight Saving Time)
➖ Create Shadow Analysis
(June and December only)
➖ Export Shadow Analysis
(December only)
➖ Limited Style Library (02 Basic Styles).
➖ Critical Bug Fixes Only
Available on SketchUp Extension Warehouse
Alternative download via Google Drive
Sun Diagram (Studio)⭐
The ultimate convenience.
All the power of Pro, fully automated.
✔️Generate a 3D Sun path by simply entering coordinates
✔️Support DST (Daylight Saving Time)
✔️ Create Shadow Analysis
(All 4 Key Solar Dates)
✔️Export Shadow Analysis
(All 4 Key Solar Dates)
✔️Premium Style Library (09 Styles)
Auto-Update (via SketchUp)
$15 USD/year (Billed annually)
Test drive the complete workflow risk-free.
Your annual subscription only begins if you choose to keep it.
(Available exclusively on SketchUp Extension Warehouse).
Flexible Annual Plan (Cancel anytime via Extension Warehouse) Hassle-Free Activation: No license keys to manage. Instantly linked to your SketchUp account.
Sun Diagram (pro)
✔️Generate a 3D Sun path by simply entering coordinates
✔️Support DST (Daylight Saving Time)
✔️ Create Shadow Analysis
(All 4 Key Solar Dates)
✔️Export Shadow Analysis
(All 4 Key Solar Dates)
✔️Premium Style Library (09 Styles)
Free Lifetime Updates
Only $45 USD (One-time payment)
Buy now on Gumroad
Lifetime license included
7-day money-back guarantee: Contact us if it doesn’t work – we’ll help or refund
One-time activation (Internet needed once) 100% Offline Capable after activation Try the Free version first – if it works, Pro will too
Sun Diagram is developed by Febhouse.
The Free version is officially available on SketchUp Extension Warehouse.
The Studio version offers auto-updates & subscription convenience via SketchUp Extension Warehouse.
The Pro version is distributed via Gumroad, offering lifetime ownership & secure payment.
📩 Support: info@febhouse.com (response within 24h)
Compatibility: SketchUp 2020+ on MacOS & Windows
Versions: 3.5.1 (20260211 Updated)
✨ Highlights of this new update:
✔️ Smart Time Zone Engine: Removed the hardcoded UTC+8 override for East Asia, allowing for accurate geometric time calculations.
✔️ Stability: Optimized Undo/Redo stack performance for Shadow Analysis.
✔️ Security Patch: Enhanced handling of special characters in file paths (Unicode/Windows paths)
✔️ Bug Fixes: Fixed broken external links (Website/Email) in the About dialog
Legacy Changelog
V3.5 (2026-02-06)
✔️ 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
V3.4 (2025-11-25)
✔️ 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 is an advanced SketchUp extension that allows architects to analyze sunlight, simulate seasonal shadow movement, and accurately understand daylight conditions directly inside their 3D models
Which versions of SketchUp are supported?
The plugin supports SketchUp 2020 and above on both Windows and macOS.
Can I use the plugin for commercial projects?
Yes, all versions (Free, Studio, and Pro) are permitted for commercial work and client projects.
Where can I download free sample files that use this plugin?
You can download free sample files at our official website (ArchiDiagram.com) or via our Instagram highlights/reels (@febhouse_com). These files can be opened directly in SketchUp without needing the plugins installed beforehand, making them perfect for exploring the final results
Why does Sun Diagram only show specific months (June, Dec, March/Sep) instead of all 12?
The plugin focuses on the most critical, internationally recognized dates for solar analysis.
- June 21 & Dec 21 (Solstices): Represent the most extreme sun positions (highest/lowest), generating the shortest and longest shadows of the year.
- March 21 & Sept 21 (Equinoxes): Represent the exact midpoints when the sun rises due east and sets due west. Every other day of the year falls within these extremes. Using these standard key dates ensures accurate, professional compliance without visually cluttering your diagrams.
I used "Create Sun Path from Coordinates," but I only see sun rings and time labels. What went wrong?
This usually happens when your SketchUp file contains excess “junk” data (hidden geometry, unused components, or broken tags) that interferes with the plugin. To fix this, simply copy your 3D model (Ctrl+C), open a completely new, blank SketchUp file (Ctrl+N), paste the model, and run the tool again
Are there different versions of Sun Diagram?
Yes, we offer three options:
- Free Version: Officially available on the SketchUp Extension Warehouse.
- Studio Version: Offers auto-updates and subscription convenience via the Extension Warehouse.
- Pro Version: Distributed via Gumroad, offering lifetime ownership and secure payment
What is the difference between the Studio and Pro versions?
Both versions have identical features (DST Support, Shadow Analysis, Batch Export, Style Library).
Where is my License Key for the Studio version?
You do not need a License Key for the Studio version. It uses SketchUp’s official licensing system, meaning your license is directly linked to the email address used for your SketchUp account.
I already have the Pro version. Do I need to subscribe to Studio?
No. Your Pro license is valid for a lifetime and includes free updates. The Studio version is simply an alternative option for users who prefer subscriptions
Can I use the plugin on multiple machines or switch computers?
- Studio Version: Yes. Simply log in to SketchUp on your new computer and install the extension from the Warehouse to activate it automatically.
- Pro Version: The lifetime license is for one user. You may install it on multiple personal machines (e.g., a desktop and a laptop) for your own use. However, concurrent use by different people or sharing the license key is strictly prohibited
Can I share the plugin with colleagues?
No. Licenses are issued to individual users. Redistribution, resale, or sharing the plugin files is not permitted
How do I install the Sun Diagram plugin?
- Free/Studio: Open SketchUp > Extension Warehouse > Search for “Sun diagram” (by Febhouse) > Click “Install” or “Try or Purchase”.
- Pro: Open SketchUp > Extension Manager > Click “Install Extension” and choose the downloaded
.rbzinstaller file from your ZIP folder
What do I receive after purchasing Sun Diagram Pro?
After your purchase on Gumroad, you will receive a ZIP folder containing the .rbz installer file, installation instructions, a user guide, and a license key (also emailed to you)
How are purchases processed?
All Pro purchases are handled securely by Gumroad.com. Febhouse does not store your payment details.
Do you offer refunds?
Yes, we offer a 7-day money-back guarantee. If the Pro version doesn’t work on your setup, please contact us at info@febhouse.com. We will troubleshoot with you or issue a prompt refund (minus a small ~10% payment processing fee)
Does the Studio version require an internet connection?
It requires an internet connection for installation and periodic license checks by SketchUp. If you need a strictly offline solution, we recommend the Pro version.
I installed it, but the interface doesn't show. What should I do?
Ensure you are using SketchUp 2020 or newer, and verify that “Extensions” are enabled in your SketchUp Preferences. Contact support if the issue persists.
When I try to enter the code, I get an Activation Error: "SSL_connect". How do I fix this?
This error is caused by local network firewalls blocking the license verification server. To fix it:
- Check that your computer’s date and time are correct.
- Connect your computer to a mobile hotspot or different WiFi network temporarily to bypass corporate firewalls. Once activated, you can return to your standard network.
- Ensure you are running an official version of SketchUp
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
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