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Mesh Morpher documentation

Edit DNA PSD

1 page · exported 2026-09-06 · https://meshmorpher.com/docs/studio-and-graph/metahuman-dna/edit-dna-psd

Studio and Graph › MetaHuman DNA

Edit DNA PSD

Adds, replaces or removes PSD correctives on a DNA, as an ordered list of operations applied atomically - a PSD is a control computed as the weighted product of its own factor controls, the missing...

Edit DNA PSD node

The Edit DNA PSD node

When to use it

Adds, replaces or removes PSD correctives on a DNA, as an ordered list of operations applied atomically - a PSD is a control computed as the weighted product of its own factor controls, the missing authoring counterpart to every PSD a Get/Create DNA node can only read.

How to use it

  1. 1

    Wire a DNA in

  2. 2

    Build an ordered list of operations in the Operations panel below the properties

    Each entry picks Add / Replace Factors / Remove, a Factors table (control + weight rows, Add / Replace) and, for Replace / Remove, a PSD target and a Force Cascade tick. Untick an entry to keep it staged without running it.

  3. 3

    Press Apply PSD

    Every enabled entry runs in order against the result of every earlier one. The whole batch is atomic: the first refusal publishes nothing at all, not even the operations before it.

Pins

Pin Type Description
DNA DNA The DNA to edit PSDs on.
Pin Type Description
DNA DNA The DNA with every operation applied. Empty until Apply PSD succeeds - never a partial file.

Settings

Setting Type Description
Operations List of MMDNAPSD Operation The ordered batch Apply PSD runs, one entry at a time, top to bottom. Edited in its own panel on the node, not in the plain properties list.

Learn more

Modify MetaHuman RBF posesRead the walkthrough on meshmorpher.comhttps://meshmorpher.com/blog/modify-metahuman-rbf-poses
Modify DNA bone expressionsRead the walkthrough on meshmorpher.comhttps://meshmorpher.com/blog/modify-meta-human-dna-bone-expressions-with-mesh-morpher
Custom DNA topologyRead the walkthrough on meshmorpher.comhttps://meshmorpher.com/blog/custom-dna-topology-with-mesh-morpher-graph