The difference between Skyrim and Skyrim SE plugins

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Work in progress. If you have additional information, feel free to add it to the article.

The purpose of this article is to document the differences in plugin structure between Form 43 plugins used by Skyirm (2011) and Form 44 plugins used by Skyrim Special Edition.

 

(TES4) Headers

Fields
Skyrim Skyrim Special Edition
Record Header:
  • Signature: TES4
  • Datasize:
  • Record Flags: ESM, Localized, Ignored
  • FormID: NULL
  • Version Control Info 1: None
  • Form Version: 43
  • Version Control Info 2: 00 00

HEDR - Header:

  • Version: 1.70000
  • Number of Records:
  • Next Object ID:

OFST - Unknown

DELE - Unknown

CNAM - Author

SNAM - Description

Master Files

  • Master File
    • MAST - FileName
    • DATA - Unknown

ONAM - Overridden Forms

SCRN - Screenshot

INTV - Number of strings that can be tagified (used only for TagifyMasterfile command-line option of the CK).

INCC - Unknown

Record Header:
  • Signature: TES4
  • Datasize:
  • Record Flags: ESM, Localized, ESL, Ignored
  • FormID: NULL
  • Version Control Info 1: None
  • Form Version: 44
  • Version Control Info 2: 00 00

HEDR - Header:

  • Version: 1.70000
  • Number of Records:
  • Next Object ID:

OFST - Unknown

DELE - Unknown

CNAM - Author

SNAM - Description

Master Files

  • Master File
    • MAST - FileName
    • DATA - Unknown

ONAM - Overridden Forms

SCRN - Screenshot

INTV - Number of strings that can be tagified (used only for TagifyMasterfile command-line option of the CK). 4 bytes.

INCC - Unknown

Noteable differences

  • ESL Flag: Light plugins were introduced in Skyrim Special Edition and Fallout 4
  • Form Version: Incremental form version.

 

(AMMO) Ammunition

Fields
Skyrim Skyrim Special Edition
Record Header:
  • Signature: AMMO
  • Datasize:
  • Record Flags: Non-Playable, Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 40-43
  • Version Control Info 2: ## ##

EDID - Editor ID

OBND - Object Bounds

  • X1
  • Y1
  • Z1
  • X2
  • Y2
  • Z2

FULL - Full Name

Model

  • MODL - Model FileName
  • MODT - Texture Files Hashes
  • MODS - Alternate Textures

Icon

  • ICON - Large Icon FileName
  • MICO - Small Icon FileName

Destructible

  • DEST - Header
    • Health
    • DEST Count
    • VATS Targetable
    • Unknown
  • Stages
    • Stage
      • DSTD - Destruction Stage Data
        • Health
        • Index
        • Model Damage Stage
        • Flags
          • Cap Damage
          • Disable
          • Destroy
          • Ignore External Dmg
        • Self Damage per Second
        • Explosion
        • Debris
        • Debris Count
      • Model
        • DMDL - Model FileName
        • DMDT - Texture Files Hashes
        • DMDS - Alternate Textures
      • DSTF - End Marker

YNAM - Sound - Pick Up

ZNAM - Sound - Put Down

DESC - Description

KSIZ - Keyword Count

KWDA - Keywords

  • Keyword (*)

DATA - Data

  • Projectile
  • Flags
    • Ignores Normal Weapon Resistance
    • Non-Playable
    • Non-Bolt
  • Damage
  • Value


ONAM - Short Name

Record Header:
  • Signature: AMMO
  • Datasize:
  • Record Flags: Non-Playable, Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 44
  • Version Control Info 2: ## ##

EDID - Editor ID

OBND - Object Bounds

  • X1
  • Y1
  • Z1
  • X2
  • Y2
  • Z2

FULL - Full Name

Model

  • MODL - Model FileName
  • MODT - Texture Files Hashes
  • MODS - Alternate Textures

Icon

  • ICON - Large Icon FileName
  • MICO - Small Icon FileName

Destructible

  • DEST - Header
    • Health
    • DEST Count
    • VATS Targetable
    • Unknown
  • Stages
    • Stage
      • DSTD - Destruction Stage Data
        • Health
        • Index
        • Model Damage Stage
        • Flags
          • Cap Damage
          • Disable
          • Destroy
          • Ignore External Dmg
        • Self Damage per Second
        • Explosion
        • Debris
        • Debris Count
      • Model
        • DMDL - Model FileName
        • DMDT - Texture Files Hashes
        • DMDS - Alternate Textures
      • DSTF - End Marker

YNAM - Sound - Pick Up

ZNAM - Sound - Put Down

DESC - Description

KSIZ - Keyword Count

KWDA - Keywords

  • Keyword (*)

DATA - Data

  • Projectile
  • Flags
    • Ignores Normal Weapon Resistance
    • Non-Playable
    • Non-Bolt
  • Damage
  • Value
  • Weight

ONAM - Short Name

Noteable differences

  • DATA - Weight: SSE includes a per-unit weight value stored as a float (0.100000).
  • Form Version: Incremental form version.

 

(LENS) Lens Flare

Fields
Skyrim Skyrim Special Edition
  Record Header:
  • Signature: LENS
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 44
  • Version Control Info 2: ## ##

CNAM - Color Influence

DNAM - Fade Distance Radius Scale

LFSP - Count

Lens Flare Sprites

  • Flare
    • DNAM - Lens Flare Sprite ID
    • FNAM - Texture
    • LFSD - Lens Flare Data
      • Tint
        • Red
        • Green
        • Blue
      • Width
      • Height
      • Position
      • Angular Fade
      • Opacity
      • Flags
        • Rotates
        • Shrinks When Occluded

Noteable differences

  • Lens Flare records were introduced in Skyrim Special Edition

 

(LTEX) Landscape Texture

Fields
Skyrim Skyrim Special Edition
Record Header:
  • Signature: LTEX
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 15-37
  • Version Control Info 2: ## ##

EDID - Editor ID

TNAM - Texture Set

MNAM - Material Type

HNAM - Havok Data

  • Friction
  • Restitution

SNAM - Texture Specular Exponent

Grasses

  • GNAM - Grass (*)

INAM - Unused

Record Header:
  • Signature: LTEX
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 15-44
  • Version Control Info 2: ## ##

EDID - Editor ID

TNAM - Texture Set

MNAM - Material Type

HNAM - Havok Data

  • Friction
  • Restitution

SNAM - Texture Specular Exponent

Grasses

  • GNAM - Grass (*)

INAM - Flags

  • Is Snow

Noteable differences

  • INAM - Flags: INAM is now an array consisting solely of the check for Skyrim Special Edition's new snow shader.
  • Form Version: Incremental form version.

 

(MATO) Material Object

Fields
Skyrim Skyrim Special Edition
Record Header:
  • Signature: MATO
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 18-39
  • Version Control Info 2: ## ##

EDID - Editor ID

Model

  • MODL - Model FileName
  • MODT - Texture Files Hashes
  • MODS - Alternate Textures

Property Data

  • DNAM - Data

DATA - Directional Material Data

  • Falloff Scale
  • Falloff Bias
  • Noise UV Scale
  • Material UV Scale
  • Projection Vector
    • X
    • Y
    • Z
  • Normal Dampener
  • Single Pass Color
    • Red
    • Green
    • Blue
  • Flags
    • Single Pass
Record Header:
  • Signature: MATO
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 18-43
  • Version Control Info 2: ## ##

EDID - Editor ID

Model

  • MODL - Model FileName
  • MODT - Texture Files Hashes
  • MODS - Alternate Textures

Property Data

  • DNAM - Data

DATA - Directional Material Data

  • Falloff Scale
  • Falloff Bias
  • Noise UV Scale
  • Material UV Scale
  • Projection Vector
    • X
    • Y
    • Z
  • Normal Dampener
  • Single Pass Color
    • Red
    • Green
    • Blue
  • Flags
    • Single Pass
  • Flags
    • Snow
  • Unused

Noteable differences

  • xEdit: Duplicate Flags entry appears in records in xEdit. Different UTF format, functions normally. Engine quirk?
  • Flags: Implemented check for the Skyrim Special Edition's snow shader.
  • Form Version: Incremental form version.

 

(MUSC) Music Type

Fields
Skyrim Skyrim Special Edition
Record Header:
  • Signature: MUSC
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 30-43
  • Version Control Info 2: ## ##

EDID - Editor ID

FNAM - Flags

  • Plays One Selection
  • Abrupt Transition
  • Cycle Tracks
  • Maintain Track Order
  • Unknown 4
  • Ducks Current Track
  • Unknown 6

PNAM - Data

  • Priority
  • Ducking (dB)

WNAM - Fade Duration

TNAM - Music Tracks

  • Track # (*)
Record Header:
  • Signature: MUSC
  • Datasize:
  • Record Flags: Deleted, Ignored
  • FormID: [EDID] "[Full Name]" XX######
  • Version Control Info 1: YYYY-MM-DD User: ## Index: #
  • Form Version: 30-44
  • Version Control Info 2: ## ##

EDID - Editor ID

FNAM - Flags

  • Plays One Selection
  • Abrupt Transition
  • Cycle Tracks
  • Maintain Track Order
  • Unknown 4
  • Ducks Current Track
  • Doesn't Queue

PNAM - Data

  • Priority
  • Ducking (dB)

WNAM - Fade Duration

TNAM - Music Tracks

  • Track # (*)

Noteable differences

  • Flags: "Doesn't Queue" implemented Skyrim Special Edition.
  • Form Version: Incremental form version.

 

🚧 (STAT) Static 🚧

  • DNAM - Direction Material - Flags
  • DNAM - Direction Material - Unused

 

🚧 (VOLI) Volumetric Lighting 🚧

  • New record type, copy and edit LENS

 

 

🚧 (WATR) Water 🚧

  • FNAM - "Unknown 3" became "Enable Flowmap"
  • FNAM - "Unknown 4" became "Blend Normals"
  • DNAM - Visual Data - "Noise Properties - Flowmap Scale"
  • NAM5 - Flow Normals - Noise Texture

 

🚧 (WEAP) Weapon 🚧

  • CRDT - Critical Data - "Effect"

 

🚧 (WRLD) Worldspace 🚧

  • Large References (array)

 

🚧 (WTHR) Weather 🚧

  • HNAM - Volumetric Lighting
  • GNAM - Sun Glare Lens Flare

 

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