MetaHuman Advanced Alpha Mask Creator – Blender Plugin for Unreal Engine 5 by Niset
Tutorial Video: https://youtu.be/Z3QOaBOgt-8
Create clean, precise body masks for your MetaHuman characters — directly inside Blender, ready to export straight into Unreal Engine 5.
This plugin is built to solve one of the most common problems with parametric MetaHuman clothing: skin clipping through clothes, or clothing not properly hiding the body underneath. By generating an accurate mask — for the full body or just specific parts — you can hide the body mesh exactly where your clothing covers it, so there's no more skin poking through, no more clipping, and no more visible body parts sticking out of your outfit. Whether you're using a full body mask or a custom mask for a specific area, this plugin gives you full control over every step of the masking process — from automatic generation to fully manual vertex painting.
Key Features:
Ready-to-Use Body Preset: One universal body & head preset with a matching UV map, compatible with all MetaHuman body types. No manual setup needed.
Body Parts Manager: Instantly select predefined mask groups (Upper Body, Arms, Hands, Thighs, Feet, Full Body, and more) to hide exactly the body areas your clothing covers. Rename, remove, or reset any group back to its default with one click.
Auto Mask: Select the body and clothing meshes using the object pickers, then adjust the precision value up or down and use Grow/Shrink Edge to fine tune the mask automatically.
Vertex Mask: Manually assign or remove faces using the Box, Circle, or Lasso selection tools to push your masking precision to the max.
Vertex Painting: Manually paint the mask directly onto the body and head, or combine it with Auto Mask and Vertex Mask to build a fully custom mask.
Bake Mask: Combine Auto Mask, Vertex Mask, and Painted results into a single final mask.
Mask Smoothing & Invert: Smooth out the edges of the mask you've created — a fully optional step — Or invert the result with a single click when needed.
Custom Mask Creation: Build and perfect your own custom body part using one or more of these features, saved for reuse across projects.
Flexible Texture Export: Export your final mask in 1K, 2K, or 4K resolution, with the option to invert before exporting — fully optimized for Unreal Engine 5 texturing workflows.
Why Use It?
Clipping and skin poke through are among the most common pain points when dressing parametric MetaHuman characters. This plugin saves you valuable time by taking the guesswork out of the process — instead of manually figuring out which areas to mask in a paint program, you can instantly see exactly which body parts need to be hidden, then use the built in tools to generate a clean, accurate mask and export it straight into Unreal Engine.
It's one of the most complete body-masking toolsets available for MetaHuman — whether you're working with parametric outfits or non-parametric clothing that still needs body and face masking. Blender's powerful mesh tools give this plugin a level of precision and flexibility that's hard to match, letting you refine every edge and vertex exactly the way you want. Even if you're using your own custom body preset, you can simply bring it into Blender and build body part groups for it from scratch.
With three complementary tools — Auto Mask, Vertex Mask, and Vertex Painting — you can combine them for maximum precision, or rely on just one, whichever fits your workflow. With this plugin, clothing clipping becomes a problem of the past.
