Using Mask Brush Tool

You can use the Mask Brush Tool to create custom blend masks by painting directly on the character’s head in the viewport. It allows you to quickly apply modification to the blend mask, repairing texture issues.

  1. Go to Face Camera View (Hotkey J) for spotting the blemishes easily.
  2. Inside the Headshot 3 Panel, Go to Texture Adjustment > Textures Channels > Mask Brush Tool.
  3. The Mask Brush Tool Panel contains multiple configurations for easier painting.
    ClosedBrush Shortcuts:

    There are shortcuts to change the Brush’s settings with ease.

    • B + Left Mouse Drag — Adjust brush Strength
    • B + Right Mouse Drag — Adjust brush Radius
    • Hold Ctrl to temporarily switch between Add and Erase.
    • Hold Shift to temporarily activate Blur mode for smoothing mask edges.
  4. Choose the Target Channel you want to paint on, it is set to ALL by default.
  5. Adjust the brush falloff settings based on your preference, there are 5 brush types in total each with their unique brush stroke.

    Smooth

    Sphere

    Sharp

     

    Linear

    Constant

    		 
  6. Open the mouth with the Mouth open/close toggle, for easier observation and avoid missing spots.
  7. Make sure the Paint Mode is on Add, paint directly on the model to add mask area on the blend mask.
  8. Switch Render Mode to view mask channels and verify the mask’s shape and blending quality.
     

    General

     

    Base Color

    Base Color Mask

    Normal

    Normal Mask

    Roughness

    Roughness Mask

  9. Close the panel to exit Mask Brush Tool mode. The system automatically applies the changes back to the character in the viewport.
    ClosedNote:

    After Modifying the mask with Mask Brush Tool, it automatically converts the mask state to Custom. Therefore it is recommended to finish creating the mask in the blend mask section before using the Mask Brush Tool to customize.