Changelog
Version 3.0 presents a massive jump in quality and functionality.

Description
To preface everything with requirements:
- Pure LCS 3.54+
- CSP 0.2.11+, but CSP 0.3.0 is strongly recommended.

Features
- Red->Orange highlight hue shift
- Purkinje effect (replicates the behaviour of the human eye in lowlight conditions)
- Filmic floor and ceiling control
- Advanced saturation and vibrance modulation
- Correct linear color space use
- Choice of three tone mapping operators: Lottes, Unreal, and Uncharted
- New auto exposure system measuring scene brightness from cube maps and Assetto Corsa's built-in system
- Correctly compensated internal glare logic for stable visuals
- Bad weather exposure compensation for overcast scenarios
- Enhanced atmospheric fog handling for an unprecedented feel

Reality shattering tone mapping
Combined with auto exposure, tone mapping is the foundation of the image. C13 AEGIS 3.0 uses a piece wise tone mapping approach, with specific parts responsible for specific features. Blowing out reds towards orange is a simulation of camera sensor behavior.

Purkinje and orange shift off

Purkinje and orange shift on


Tone mapping functions
Lottes

Quite punchy, excellent color reproduction, pure whites, mild orange hue on yellows.

Unreal

Very impactful, great colors, slightly pulled down whites, incredible yellows.

Uncharted

Slightly muted, has that filmic ACES effect, but excellent detail preservation across the board.

Exposure built from the ground up
C13 AEGIS 3.0 no longer relies on any pure functionality for auto exposure. It ensures stable visuals across the exposure range. The system includes controls for primary target, F stop based compensation, and "bad weather compensation".

Bad weather exposure compensation +0

Bad weather exposure compensation +1 (default)

Bad weather exposure compensation +2


Atmospheric fog
A key change allows 3.0 to have an unprecedented atmospheric feel by using features like the Nearby Fog implementation.

Stock pure fog handling

C13 Fog

Credits
C13 Automotive, chris, Ilja