Adaptive Local Tonemapper

A high-quality, feature-rich tonemapping shader for ReShade.

Features

• Tonemappers:

  • ACES
  • AgX

• Adaptive Processing:

  • Automatically adjusts to scene brightness
  • Configurable adaptation speed and sensitivity
  • Optional manual control with fixed luminance mode

• Local Contrast Enhancement:

  • Bilateral filtering for edge-aware processing
  • Separate controls for local and micro contrast
  • Noise-aware detail enhancement

• Zonal Adjustments:

  • Independent control over shadows, midtones, and highlights
  • Configurable midtone center and width
  • Smooth transitions between zones

• Color Processing:

  • Vibrance enhancement with curve control
  • Skin tone protection
  • Natural saturation handling

• Advanced AgX Controls:

  • Highlight gain with threshold control
  • Punch exposure, saturation and gamma adjustments

Usage

The shader offers extensive customization options organized into categories:

Exposure

• Exposure: Adjusts overall image brightness before tonemapping (-3.0 to 2.0)

Tone Mapping

• Tonemapper Type: Choose between ACES and AgX algorithms
• Tone Mapping Strength: Controls the intensity of the effect (0.1 to 3.0)
• Local Adaptation Strength: Adjusts how much local luminance affects processing (0.0 to 1.0)

AgX-specific Settings

• AgX Highlight Gain: Boosts highlights for increased dynamic range
• AgX Highlight Gain Threshold: Controls the range of highlight boosting
• AgX Punch Exposure/Saturation/Gamma: Fine-tune the AgX look

Zonal Adjustments

• Shadows/Midtones/Highlights: Independent control over each tonal range
• Midtones Center/Width: Precisely define the midtone range

Color

• Color Vibrance: Boosts color saturation, especially in less saturated areas
• Skin Tone Protection: Prevents oversaturation of skin tones
• Vibrance Curve: Controls how the vibrance effect is applied

Adaptation

• Adaptation Range: Sets min/max values for adaptation
• Adaptation Time: How quickly the shader adapts to brightness changes
• Adaptation Sensitivity: Controls sensitivity to bright light
• Enable Adaptation: Toggle between adaptive and static tonemapping
• Fixed Luminance: Manual control when adaptation is disabled

Local and Micro Contrast

• Enable Local/Micro Contrast: Toggle each enhancement independently
• Local/Micro Contrast Strength: Control the intensity of each effect
• Local Contrast Radius: Size of the area for contrast detection
• Micro Contrast Falloff: Controls detail enhancement across larger differences
• Micro Contrast Noise Threshold: Prevents enhancing noise

Final Adjustments

• Final Gamma: Fine-tune the gamma curve
• Final Opacity: Blend between original and processed image

Debug

• Debug View: Various visualization modes
• Debug Multiplier: Adjusts debug visualization strength

Credits

• All shader code written by LLMs
• Some adaptation code from luluco250's AdaptiveTonemapper.fx
• AgX implementation based on Liam Collod's AgXc