Fixing Mouse Smoothing in Meccha Chameleon

In Meccha Chameleon, precision is everything. Hiders need to execute pixel-perfect brush strokes to match background wall seams, and seekers must flick their crosshairs quickly to test suspicious objects. However, Unreal Engine 5’s default player input controller has mouse smoothing and mouse acceleration enabled by default.

Mouse smoothing averages your physical movements over several frames to make camera rotation look smoother, but this introduces a slight delay (input lag) and changes your mouse sensitivity dynamically based on how fast you move your hand. Disabling it restores raw, linear input. This guide details how to turn off smoothing in the settings, apply launch overrides, and optimize your gaming mouse polling rates.

Mouse Input Troubleshooting Decision Tree

Follow this diagnostic path to achieve raw mouse input:

                         MOUSE INPUT DECISION TREE
                         
                 [Check In-Game Input Configuration]
                                 |
                 (Is Mouse Smoothing toggled ON?)
                                 |
                  +--------------+--------------+
                  |                             |
                (Yes)                          (No)
                  |                             |
         [Toggle setting OFF]          [Apply System-Level Fixes]
         - Save settings                        |
         - Test aim response            (Is aim still sluggish?)
                                                |
                                  +-------------+-------------+
                                  |                           |
                                (Yes)                        (No)
                                  |                           |
                       [Disable Windows Enhance]    [Set 1000Hz Polling]
                       - Run main.cpl               - Open G-Hub/Synapse
                       - Uncheck precision          - Set polling rate
                       - Apply launch options       - Disable soft acceleration

Detailed Troubleshooting Steps

1. Adjust In-Game Input Settings

First, disable the game client’s software-level smoothing layers.

1. Open Meccha Chameleon and go to Settings > Input.
2. Locate the Mouse Smoothing option and set it to Off.
3. Locate the Mouse Acceleration slider and drag it down to 0.0 (or toggle it to Off).
4. Save graphics and input changes. If you experience screen lockups during window changes, check Alt-Tab Crash Fix.

2. Apply Steam Launch Option Overrides

If the setting does not save properly or the game engine continues to interpolate your inputs, you can bypass the Windows pointer curve by forcing raw input via command line arguments.

1. Open Steam, navigate to your Library, and right-click Meccha Chameleon.
2. Select Properties.
3. Under the General tab, look for the Launch Options field.
4. Add the following parameters:

   -noaccel -rawinput

5. Close the properties window and launch the game. A comprehensive breakdown of useful parameters is available in our Launch Options database.

3. Disable Windows Pointer Precision (Acceleration)

Windows has a built-in mouse acceleration feature called “Enhance pointer precision.” It changes your cursor speed based on how quickly you move the mouse, making muscle memory muscle mapping impossible.

1. Press Win + R on your keyboard, type main.cpl, and click OK. This opens the Windows Mouse Properties.
2. Go to the Pointer Options tab.
3. Locate the Select a pointer speed slider. Ensure it is set to the 6th notch (the middle position). This provides a 1:1 pixel multiplier.
4. Under the Motion section, uncheck the box labeled Enhance pointer precision.
5. Click Apply and then OK.

4. Optimize Gaming Mouse Companion Software

High-end gaming mice from Logitech, Razer, SteelSeries, or Corsair use background drivers that can conflict with Unreal Engine 5’s input rate if configured incorrectly.

• Set Polling Rate to 1000Hz: Open your mouse software (e.g. Logitech G Hub, Razer Synapse) and set the polling rate (report rate) to 1000Hz. Avoid using 8000Hz, as high polling rates can saturate UE5’s input thread, causing camera stutters on older CPUs. Review the Low-end PC Settings guide to balance CPU load.
• Disable Software Acceleration: Make sure the DPI profiles do not use any additional software acceleration layers. Set your mouse to a native hardware DPI (typically 400, 800, or 1600 DPI) and adjust your sensitivity in the game’s menu instead.