Mesh Morpher and Reallusion`s Character Creator 4

Character Creator 4 is one of the fastest ways to produce game-ready characters, and its morph system is a big part of that. But bringing CC4 characters into Unreal Engine with their morphs intact exposes a classic problem: morphs that change body proportions also need the skeleton to change, and a skeletal mesh in Unreal has exactly one skeleton. Play an animation on a morphed character whose bones are in the wrong place and the mesh distorts - shoulders collapse, knees bend mid-thigh.

Mesh Morpher fixes this in-engine, so true CC4 character morphing works in Unreal without round-tripping back to Character Creator.

The tools: Bonesnapshots and the Poser

Two features of Mesh Morpher Classic do the work:

• Bonesnapshots store an alternative skeleton pose - the bone proportions that match a given morph - and can be loaded at runtime or in the editor.
• The Poser fits the skeleton to a morph target and can generate those Bonesnapshots procedurally.

Approach 1: Generate Bonesnapshots procedurally

The fast path: let Mesh Morpher fit the skeleton to each CC4 morph target automatically. With a few clicks the character mesh and skeleton morph together without breaking animations. This video walks through the whole workflow:

▶ Watch the video on YouTube

Approach 2: Build Bonesnapshots from imported skeletal meshes

If you exported each morph variant from CC4 as its own skeletal mesh, you can create the Bonesnapshots from those meshes instead - importing them, capturing their skeletons, and then deleting the extra meshes from the project once the snapshots exist. It is a little longer, but it uses exactly the proportions CC4 authored:

▶ Watch the video on YouTube

When you can skip all of this

Not every CC4 morph touches the skeleton. Facial shapes, muscle definition and other surface-level morphs leave the bones where they are - for those, plain morph targets are enough and no Bonesnapshots are needed. The rule of thumb: if the morph changes proportions (height, limb length, bulk), pair it with a Bonesnapshot; if it only changes the surface, ship it as-is.

Tips

• Name morphs and snapshots consistently so runtime logic can enable them in pairs.
• Test with your actual animations. Distortion shows up at animation extremes - test walk, run and idle before committing.
• Organize as you go. CC4 characters arrive with a lot of morphs; folders, filters and color coding keep them manageable.
• Runtime works in packaged games. Mesh Morpher ships pre-compiled runtime modules, so Bonesnapshot loading and morph driving work outside the editor.

Related workflows

The same skeleton-fitting logic powers full-body MetaHuman morphing. And if you want to wrap a CC character onto MetaHuman topology instead of morphing it in place, see the step-by-step 3D wrapping guide.