Cinematic atmosphere
in a single click
Physical Starlight and Atmosphere is the most popular
atmosphere addon for Blender, which is setting the
new industry standard for lighting and real-time
interactivity with the atmosphere.

Why did 10’000+ users
choose PSA?
Pre-made presets. Save time and effort with pre-made presets, providing you with a list of ready-to-use settings that can instantly transform your scene and serve as a starting point for further customization.
Realtime speed and performance. Experience unparalleled speed and efficiency with real-time rendering, ensuring smooth performance during both editing and playback of your projects in Blender.
Animation options for every feature. Use keyframes to effortlessly animate each feature, giving you the ability to bring your scenes to life with a dynamic and captivating atmosphere and light tailored to your specific needs.
Highly customizable for full creative freedom. User-friendly interface, allowing even beginners to create stunning visuals with ease. Simply adjust the settings, and watch your scene transform.

1.8.1 – released 16.07.2024
improvements:

Added Physical Starlight and Atmosphere abbreviation (PSA) to simplify addon search in Blender Preferences.

fixed:

Volume linking is now omitted if no surface is present.
Improved alpha linking to be mostly automatic.
Fixed an issue where re-zipping a folder on MacOS resulted in a non-working addon due to a folder name change.
Resolved an issue where the binary sun panel would appear if it was enabled, even when the atmosphere was off.

1.8.2 – released 27.09.2024
fixed:

Fixed a bug causing the image to appear overly bright when the sun’s vertical angle was set to 90°, -90°, 270°, or -270°.

1.8.3 – released 16.05.2025
new:

Import/export system for presets with archive validation and texture handling.
Batch import of presets from folder.
Notifications during import/export.
Preset deletion now cleans up texture files.
Improved file selection and texture path handling.
improvements:

Sun rotation now uses attributes instead of drivers.
Removed fog and redundant nodes to improve shader compile time.
Cleaner and more efficient shader node tree.
Export UI updated to match import flow.
fixed:

Fixed issues with preset export paths, image handling, and archive validation.