Fixing HDR Colors in Meccha Chameleon

Unreal Engine 5 features advanced real-time global illumination and reflection engines (Lumen). While this provides stunning visuals, it can also lead to issues when displaying on High Dynamic Range (HDR) monitors. If your display is incorrectly calibrated, Meccha Chameleon can appear washed-out, oversaturated, or display heavy color banding (gradations of color look blocky instead of smooth) in dark corridors.

This guide walks you through calibrating Windows Auto HDR, setting your graphics card to output a 10-bit color depth, and adjusting in-game brightness to restore vibrant, accurate colors.

HDR Color Troubleshooting Decision Tree

Follow this diagnostic path to fix color inaccuracies on your HDR monitor:

                          HDR DIAGNOSTIC TREE
                          
                 [Check Windows HDR Settings & Cable]
                                 |
                 (Is Windows HDR Toggled to ON?)
                                 |
                  +--------------+--------------+
                  |                             |
                (No)                          (Yes)
                  |                             |
         [Toggle Windows HDR]          [Check Tone Mapping]
         - Use HDMI 2.0+ or DP 1.4              |
         - Enable HDR in Monitor OS        (Is color washed-out?)
                                                |
                                  +-------------+-------------+
                                  |                           |
                                (Yes)                        (No)
                                  |                           |
                       [Run Calibration App]       [Enable 10-bit Color]
                       - Set Max Brightness        - Open NVIDIA Control Panel
                       - Set Min Black Level       - Change color depth
                       - Toggle Auto-HDR           - Turn off Auto-HDR

Detailed Troubleshooting Steps

1. Enable 10-Bit Color Depth in GPU Control Panel

Standard desktop settings utilize 8-bit color depth, which splits color values into 256 steps per channel. HDR requires 10-bit color depth (1,024 steps per channel) to prevent color banding in dark zones.

• NVIDIA Graphics Cards:
  1. Right-click your desktop and open NVIDIA Control Panel.
  2. Under the Display section in the left sidebar, click Change resolution.
  3. Scroll down to section 3: “Apply the following settings.”
  4. Toggle the selection to Use NVIDIA color settings.
  5. Set Output color depth to 10 bpc (bits per channel). If 10 bpc is missing, ensure your monitor is connected via DisplayPort 1.4 or HDMI 2.0+ and set the refresh rate slightly lower.
  6. Set Output dynamic range to Full.
• AMD Graphics Cards:
  1. Open AMD Software: Adrenalin Edition.
  2. Go to Gaming > Display.
  3. Locate Color Depth and select 10 bpc.

2. Calibrate Using the Windows HDR Calibration Tool

Windows does not automatically detect the exact light output limits of every monitor. The official Windows HDR Calibration app sets the correct system-wide tone mapping bounds.

1. Open the Microsoft Store and search for Windows HDR Calibration. Download and install the app.
2. Ensure your monitor has been turned on for at least 10 minutes to reach full brightness.
3. Open the app and follow the on-screen instructions:
   • Minimum Luminance: Adjust the slider until the black test pattern is completely invisible (typically set to 0 nits).
   • Maximum Luminance: Adjust the slider until the white pattern matches the background (set to your monitor’s peak nits, e.g. 400, 600, or 1000).
4. Save the calibrated profile. Windows will automatically apply these tone-mapping limits to Meccha Chameleon.

3. Calibrate SDR Content Brightness (Windows Settings)

If the game appears washed-out when running in Windowed Borderless mode, the Windows SDR slider may be set too high, over-brightening the game’s non-HDR UI elements.

1. Open Windows Settings (Win + I) and go to System > Display.
2. Click on the HDR settings page.
3. Locate the SDR content brightness slider.
4. Drag the slider down (typically between 20% and 40%). This darkens the base white point, restoring contrast and preventing the game from looking foggy. If you experience screen flickering, check Screen Tearing Fix.

4. Adjust In-Game Brightness and Gamma Settings

Meccha Chameleon reads the default display gamma, which can cause dark corridors to look grey.

1. Launch the game, go to Settings > Graphics.
2. Locate the Brightness slider.
3. Turn down brightness until the dark corridors on maps like Haunted House look rich and black.
4. If you are playing on a budget display, you can toggle off HDR at the Windows level and use the optimized graphics settings in our Low-end PC Settings guide to run in SDR.