git:20260831.fbc5bc9 to git:20260831.38189af

5 added, 0 removed. Audit A to A.

---

name: unreal-materials

description: >-

Domain skill - create reusable Material Instances, set typed material parameters,

connect material-expression outputs to Customized UV inputs, and bind materials to

Static Meshes, Geometry Caches, or live level actors in Unreal Engine.

license: MIT

compatibility: Unreal Engine 5.0+, Python 3.9+

allowed-tools: Bash Read Write

metadata:

dcc-mcp:

dcc: unreal

version: "0.1.0"

layer: domain

stage: lookdev

search-hint: "unreal material instance scalar vector texture parameter customized uv expression output assign mesh actor"

tags: "unreal, material, material-instance, material-graph, customized-uv, shading, lookdev"

tools: tools.yaml

---

# Unreal Materials

- `create_material_instance`

- `set_material_instance_parameters`

- `connect_material_expression_to_customized_uv`

- `assign_material`

+ `set_material_instance_parameters` routes scalar, vector, and texture overrides

+ through one native editor transaction. It rejects dirty packages, saves

+ synchronously, verifies the requested overrides and clean package state, and

+ restores the previous override arrays when mutation or persistence fails.

`connect_material_expression_to_customized_uv` is the typed material-root path for

Customized UV 0-7. Select exactly one source output by zero-based index or exact,

case-sensitive output name. The native editor bridge validates graph ownership,

records an undo transaction, saves synchronously, and verifies the saved connection.

It fails closed when the package already contains unsaved changes or a different

connection occupies the requested input unless `replace_existing=true` is explicit.