Clothing & Texture System — WebRTC Command Reference

This document covers the WebRTC command protocol for changing clothing and textures on MetaHuman characters via Pixel Streaming. Each texture folder in this repository is mapped to its corresponding command.

Developers adapting this to their own project should treat the command formats below as a protocol specification and the texture folders as UV painting references.

Command Types

All commands are sent as strings over the WebRTC DataChannel via Pixel Streaming's emitCommand({ command: '...' }) interface.

PRS. — Character Preset

Loads a base MetaHuman. Must be sent first; all other commands layer on top.

PRS.Fem       // Lucy
PRS.Fem1      // Sarah (Mai)
PRS.Masc1     // Harry
PRS.Masc      // Zach

OF_ — Outfit Equip

Equips or removes a clothing mesh on a slot.

OF_<ManifestValue>

Example: OF_Tops_Lucy.SleevelessDress

OFC_ — Outfit Skin (Parametric Texture Swap)

Swaps Diffuse/Normal/SRMF textures on a currently equipped clothing mesh. Only works on clothing types that have registered skins.

OFC_<ClothingCategory>_<ClothingType>.<TextureName>

Example: OFC_Tops_SleevelessDress.BWShred

OFCD_ — Custom Texture via URL

Sends a public image URL to Unreal Engine, which downloads and applies it as a dynamic texture. Used for AI-generated or user-drawn textures on face, body, or clothing.

OFCD_<ObjectType>_<PublicImageURL>

Object types: Face, Body, Legs (more can be added per Blueprint setup).

SKC. — Skin Color

Sets the skin tone. Value range: 0.04 to 1.30.

SKC.<float>

Example: SKC.0.67

PLAYER_ — Player Controller Setup

Sent after all customization commands to initialize the player controller.

PLAYER_Metahuman

Outfit Slots

Smart Pairing Rules

When certain torso items are equipped, legs should auto-pair:

Command Sequence Order

When loading a full character, commands are sent in this order:

1. PRS.* — Character preset (sent first, with delay before rest)
2. SKC.* — Skin color
3. EYE_* — Eye parameters
4. MT_* — Face morph targets
5. MKUPF_* / MKUPC_* — Makeup (feminine characters only)
6. HS_* — Hairstyle + HAIRF_* / HCR. / HCG. / HCB. hair params
7. OF_* — Clothing (outfit values sent raw, e.g. Tops_Lucy.TurtleNeckSweater)
8. Animation commands
9. OFCD_* — Custom skin textures (face/body URLs)
10. PLAYER_Metahuman — Sent last after a delay

Texture Folders & Example WebRTC Commands

MetaHuman Face Textures

Face textures are unique per character. They are loaded as part of the character preset (PRS.*), or can be overridden dynamically with OFCD_Face_.

MetaHuman-1-Lucy / Face

Path: MetaHumans/MetaHuman-1-Lucy/Face/ Files: T_Head_BC.PNG, T_Head_N.PNG, T_Head_SRMF.PNG

Load Lucy (which applies her default face texture):

PRS.Fem

Override with a custom face texture from a URL:

OFCD_Face_https://example.com/my_custom_face.png

MetaHuman-2-Sarah / Face

Path: MetaHumans/MetaHuman-2-Sarah/Face/ Files: T_Head_BC.PNG, T_Head_N.PNG, T_Head_SRMF.PNG

Load Sarah:

PRS.Fem1

Override with a custom face texture:

OFCD_Face_https://example.com/my_custom_face.png

MetaHuman-3-Harry / Face

Path: MetaHumans/MetaHuman-3-Harry/Face/ Files: T_Head_BC.PNG, T_Head_N.PNG, T_Head_SRMF.PNG

Load Harry:

PRS.Masc1

Override with a custom face texture:

OFCD_Face_https://example.com/my_custom_face.png

MetaHuman-4-Zach / Face

Path: MetaHumans/MetaHuman-4-Zach/Face/ Files: T_Head_BC.PNG, T_Head_N.PNG, T_Head_SRMF.PNG

Load Zach:

PRS.Masc

Override with a custom face texture:

OFCD_Face_https://example.com/my_custom_face.png

MetaHuman Body Textures

Body textures are also unique per character and loaded via the preset. Override dynamically with OFCD_Body_.

MetaHuman-1-Lucy / Body

Path: MetaHumans/MetaHuman-1-Lucy/Body/ Files: T_Body_BC.PNG, T_Body_N.PNG, T_Body_Scatter.PNG, T_Body_SRMF.PNG

Load Lucy (applies default body):

PRS.Fem

Override with a custom body texture:

OFCD_Body_https://example.com/my_custom_body.png

MetaHuman-2-Sarah / Body

Path: MetaHumans/MetaHuman-2-Sarah/Body/ Files: T_Body_BC.PNG, T_Body_N.PNG, T_Body_SRMF.PNG

Load Sarah:

PRS.Fem1

Override:

OFCD_Body_https://example.com/my_custom_body.png

MetaHuman-3-Harry / Body

Path: MetaHumans/MetaHuman-3-Harry/Body/ Files: T_Body_BC.PNG, T_Body_N.PNG, T_Body_SRMF.PNG

Load Harry:

PRS.Masc1

Override:

OFCD_Body_https://example.com/my_custom_body.png

MetaHuman-4-Zach / Body

Path: MetaHumans/MetaHuman-4-Zach/Body/ Files: T_Body_BC.PNG, T_Body_N.PNG, T_Body_SRMF.PNG

Load Zach:

PRS.Masc

Override:

OFCD_Body_https://example.com/my_custom_body.png

Clothing — Torso

Sleeveless Dress

Path: Clothing/MetaHuman-1-Lucy/Torso/Sleeveless-Dress/ Files: LucyDressSleeveless_Diffuse_BWShred.PNG, LucyDressSleeveless_Normal_BWShred.PNG, LucyDressSleeveless_SRMF_BWShred.PNG Note: Auto-sets legs to Bottoms_None (dress covers legs).

Equip:

OF_Tops_Lucy.SleevelessDress

Remove legs (sent automatically):

OF_Bottoms_None

Apply a skin:

OFC_Tops_SleevelessDress.BWShred

Available skins: Default, BeigeWoven, BlueClouds, BWFerro, BWShred, BWStudded, CarbonFiber, GreenGrid, GreenNet, GreenSquared, GreyFeathers, GreyFelt, LinenBeige, Phoenix, Polkadot, RedNylon, RipstopFloral, RoyalGreen, RoyalPink, SalmonCotton

T-Shirt

Path: Clothing/MetaHuman-1-Lucy/Torso/T-Shirt/ Files: T-Shirt_PlainWhite_BC.PNG, T-Shirt_PlainWhiteN.PNG, T-Shirt_PlainWhiteSRMF.PNG Note: Auto-pairs with CargoPant.

Equip:

OF_Tops_Lucy.TShirt

Auto-set legs (sent automatically):

OF_Bottoms_Lucy.CargoPant

Apply a skin:

OFC_Tops_TShirt.PlainWhite

Available skins: Default, BeigeWash, NavyWhiteStripe, PinkCamo, PinkHexLogo, Starlight, ShadedSquare, RWFlannel, GreyLogo, Grey, GreenStripeLogo, GreenStripe, BlueDiamond, BlackLogo, PlainWhiteLogo, PlainWhite

Turtleneck Sweater Combo

Path: Clothing/MetaHuman-1-Lucy/Torso/Turtleneck-Sweater-Combo/ Note: Two-piece outfit (Turtleneck + Jacket) with separate element IDs (1 = Turtleneck, 2 = Jacket). Auto-pairs with Skirt.

Turtleneck sub-folder: TurtleNeck_TurtleNeck_BaseColor.PNG, TurtleNeck_TurtleNeck_Normal.PNG, TurtleNeck_TurtleNeck_OcclusionRoughnessMetallic.PNG Sweater sub-folder: Jacket_Jacket_BaseColor.PNG, Jacket_Jacket_Normal.PNG, Jacket_Jacket_OcclusionRoughnessMetallic.PNG

Equip:

OF_Tops_Lucy.TurtleNeckSweater

Auto-set legs (sent automatically):

OF_Bottoms_Lucy.Skirt

Layered Outdoor Jacket (Triple Layer Vest)

Path: Clothing/MetaHuman-1-Lucy/Torso/Layered-Outdoor-Jacket/ Files: TripleLayerJacketLSTee_normal.PNG, TX_TripleLayerVestDiffuse.PNG Note: Auto-pairs with Shorts.

Equip:

OF_Tops_Lucy.TripleLayerVest

Auto-set legs (sent automatically):

OF_Bottoms_Lucy.Shorts

Embody Puffer

Path: Clothing/MetaHuman-1-Lucy/Torso/Embody-Puffer/ Files: embody_pufferbase_color_texture.PNG Note: Set legs to none. This item is not in the current clothing manifest — it requires a custom manifest entry to equip via OF_. The texture here is the UV reference for adding it.

To add it, register in your manifest under [Tops] and equip via:

OF_Tops_Lucy.EmbodyPuffer

Then set:

OF_Bottoms_None

Livepeer Outfit

Path: Clothing/MetaHuman-1-Lucy/Torso/Livepeer-Outfit/ Files: livepeerlucyfinaldraftv1_diffuse.PNG Note: Full-body outfit. Set legs and feet to none. Not in the current clothing manifest — requires a custom entry.

To add it, register in your manifest and equip via:

OF_Tops_Lucy.LivepeerOutfit

Then clear lower body:

OF_Bottoms_None
OF_Shoes_None

Pumpkin Witch

Path: Clothing/MetaHuman-1-Lucy/Torso/Pumpkin-Witch/ Files: pumpkin_witch_textures_diffuse.PNG, pumpkin_witch_textures_normal.PNG Note: Set legs to none. Not in the current clothing manifest — requires a custom entry.

To add it, register in your manifest and equip via:

OF_Tops_Lucy.PumpkinWitch

Then set:

OF_Bottoms_None

Clothing — Legs

Cargo Pants

Path: Clothing/MetaHuman-1-Lucy/Legs/Cargo-Pants/ Files: T_CargoPants_BWCamo_BC.PNG, T_CargoPants_BWCamo_N.PNG, T_CargoPants_BWCamo_ORM.PNG

Equip:

OF_Bottoms_Lucy.CargoPant

Apply a skin:

OFC_Bottoms_CargoPant.BWCamo

Available skins: Default, AfghanCamo, BWCamo, BWHex, CaddyFlannel, Dart, FullCamo, PinkCamo, PinkHearts, PinkPlad, RBFlannel, RWFlannel, WHex, WhiteoutHex, WOHex, YellowThread

Skater Shorts

Path: Clothing/MetaHuman-1-Lucy/Legs/Skater-Shorts/ Files: Lucy_Shorts_BC.PNG

Equip:

OF_Bottoms_Lucy.Shorts

Skirt

Path: Clothing/MetaHuman-1-Lucy/Legs/Skirt/ Files: Skirt_Skirt_BaseColor.PNG, Skirt_Skirt_Normal.PNG, Skirt_Skirt_OcclusionRoughnessMetallic.PNG

Equip:

OF_Bottoms_Lucy.Skirt

Apply a skin:

OFC_Legs_Skirt.Tiger

Apply a custom texture via URL:

OFCD_Legs_https://example.com/my_custom_skirt.png

Available skins: Default, Tiger, NavyLint, BlueFloral, RedFloral

Clothing — Feet

Heels

Path: Clothing/MetaHuman-1-Lucy/Feet/Heels/ Files: HighHeels_GreenCasual_BC.PNG, HighHeels_GreenCasual_N.PNG, HighHeels_GreenCasual_SRMF.PNG

Equip:

OF_Shoes_Lucy.Heels

Sneakers

Path: Clothing/MetaHuman-1-Lucy/Feet/Sneakers/ Files: Sneakers_BW_BC.PNG, Sneakers_BW_N.PNG, Sneakers_BW_SRMF.PNG

Equip:

OF_Shoes_Lucy.Sneakers

Clothing — Head

Path: Clothing/MetaHuman-1-Lucy/Head/ Note: No textures yet. Headwear slot is available in the manifest.

Remove headwear:

OF_Headwear_None

Clothing — Back

Path: Clothing/MetaHuman-1-Lucy/Back/ Note: No textures yet. Magic slot is available.

Equip wings:

OF_Magic_Wings

Remove:

OF_Magic_None

Texture Map Naming Conventions

Character Substitution

All OF_ commands use a character name token. Replace Lucy with the target:

Example — equip Sneakers on Harry:

OF_Shoes_Harry.Sneakers

Not all clothing items are available for all characters. The manifest defines availability:

• SleevelessDress: Lucy, Sarah
• TurtleNeckSweater: Lucy, Sarah, Harry
• TShirt: All four
• TripleLayerVest: All four
• Skirt: Lucy, Sarah
• CargoPant: All four
• Shorts: All four
• AthleticShortsF: Lucy, Sarah
• Sneakers: All four
• Heels: Lucy, Sarah

Adding New Textures

1. Paint over the UV map PNG in the appropriate folder
2. Name textures following the convention: <ClothingName>_<SkinName>_BC.PNG, _N.PNG, _SRMF.PNG
3. Register the skin in the clothing manifest under [Skins] as ClothingType.SkinName
4. The command OFC_<Category>_<ClothingType>.<SkinName> will work once registered

To add an entirely new clothing item, you need Unreal-side Blueprint/mesh setup and a new manifest entry under the appropriate [Category] section.