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sharpbracket avatar

sharpbracket/redshiftArchived

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Redshift

Redshift is a circadian lighting controller and location-aware display tool that adjusts screen color temperature and brightness based on the time of day. It functions as a display gamma manager, modifying color temperature to match ambient lighting conditions and reduce eye strain.

The system determines the ideal screen temperature by calculating the sun's elevation using geographic coordinates, which can be provided manually or through automated location tracking. It employs gamma-ramp manipulation to simulate brightness changes and apply color temperature adjustments at the hardware level.

The project includes capabilities for automated display scheduling and ambient lighting synchronization, allowing for gradual linear color transitions between day and night profiles. It also supports the execution of external scripts and custom hooks when the service transitions between operational states.

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Features

  • Ambient Lighting Synchronization - Matches the display brightness and color temperature to the surrounding environment using geographic location and solar position.
  • Color Temperature Managers - Adjusts the screen color temperature between warm and cold profiles to reduce eye strain based on the time of day.
  • Display Gamma Management - Modifies display output curves and individual color channels to fine-tune visual output and screen temperature.
  • Circadian Lighting Tools - Synchronizes display output with natural day-night cycles to support human circadian rhythms.
  • Geospatial Location Resolution - Provides mechanisms to resolve geographic coordinates from system providers to calibrate solar data for color adjustments.
  • Location-Aware Display Tools - Uses geographic coordinates to calculate the sun's position and automatically adjust display settings.
  • Gamma Ramps - Manipulates hardware-level gamma ramps to simulate precise brightness and color temperature shifts on the display.
  • Brightness Level Adjustments - Sets the display brightness level to match ambient lighting at different times of the day.
  • Temporal Brightness Scheduling - Automatically adjusts backlight levels to set distinct brightness profiles for day and night periods.
  • Display Profile Schedulers - Sets specific schedules or triggers to automatically shift screen colors and brightness at defined intervals.
  • Geographic Temperature Calculation - Computes the sun's elevation based on geographic coordinates and time to determine the ideal screen color temperature.
  • Temperature Interpolations - Gradually interpolates between day and night color temperature states over a set duration to ensure smooth visual transitions.
  • Time-Based Triggers - Triggers display profiles and color shifts based on user-defined clocks or predefined day-night cycles.
  • Location Services - Utilizes location services to determine coordinates for calculating solar positions and color adjustments.
  • Screen Color Fades - Gradually fades the screen color between day and night settings over a specified period.
6,156 stars·429 forks·C·GPL-3.0·18 views

Star history

Star history chart for sharpbracket/redshiftStar history chart for sharpbracket/redshift

How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

Frequently asked questions

What does sharpbracket/redshift do?

Redshift is a circadian lighting controller and location-aware display tool that adjusts screen color temperature and brightness based on the time of day. It functions as a display gamma manager, modifying color temperature to match ambient lighting conditions and reduce eye strain.

What are the main features of sharpbracket/redshift?

The main features of sharpbracket/redshift are: Ambient Lighting Synchronization, Color Temperature Managers, Display Gamma Management, Circadian Lighting Tools, Geospatial Location Resolution, Location-Aware Display Tools, Gamma Ramps, Brightness Level Adjustments.

Which projects share features with sharpbracket/redshift?

Projects with overlapping indexed features include: jonls/redshift — Redshift is a circadian lighting tool and color temperature controller designed to align screen output with natural… alin23/lunar — Lunar is an adaptive monitor brightness controller and DDC/CI display manager. It allows for the control of hardware… arendst/tasmota — Tasmota is a universal firmware platform for ESP8266 and ESP32 microcontrollers, designed to provide local control and… lordamit/brightness — Brightness is a Linux desktop utility for controlling screen luminosity and color temperature on both primary and… breezy-weather/breezy-weather — Breezy Weather is an open-source weather forecast application and data visualizer. It serves as a mobile client that… dbader/schedule — This project is a lightweight Python scheduling library used for managing recurring jobs and automating the execution…

Projects sharing features with Redshift

These projects share indexed features with Redshift. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
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    Brightness is a Linux desktop utility for controlling screen luminosity and color temperature on both primary and external displays. It provides hardware and display management capabilities to adjust built-in laptop screens and secondary desktop monitors. The application includes features for managing display color profiles, allowing users to save current settings and load previously stored configurations for instant restoration. It also supports adjusting screen warmth by tuning red, green, and blue color ratios. System integration is achieved through desktop session bus communication, dire

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