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Overview

Frosty Editor provides specialized editors for different asset types. This guide covers the most common modification workflows.

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Texture Assets

Textures are stored as RES assets (type 0x6BDE20BA) with linked chunk data for mipmap levels.

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Opening the Texture Editor

1

Find Your Texture

  1. Use the Asset Browser search: enter texture name
  2. Filter by type: RES > Texture
  3. Double-click the texture asset to open it
2

View Texture Properties

The Texture Editor displays:
  • Format: Pixel format (BC1, BC3, BC7, SRGB variants)
  • Dimensions: Width x Height
  • Mip Levels: Number of mipmap levels
  • Type: 2D, Cube, 2DArray, 3D
  • Real-time preview with mip/slice selection

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Importing Textures

  1. Click the Import button in the toolbar
  2. Select your image file:
    • PNG: Best for lossless quality
    • TGA: Supports alpha channels
    • DDS: Direct import, no conversion
    • HDR: For high dynamic range textures
  3. Configure import options:
    • Format: Match original or choose new format
    • Generate Mipmaps: Auto-generate mip levels
    • Resize: Adjust dimensions (must be power of 2)
  4. Click Import
Textures using SRGB formats (TextureFlags.SrgbGamma) require gamma-correct source images. Non-SRGB textures should use linear color space.

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Exporting Textures

  1. Click the Export button
  2. Choose format:
    • PNG: Best for sharing/viewing
    • TGA: Preserves full quality with alpha
    • DDS: Native format, includes mipmaps
  3. For cube maps and arrays, each face/slice exports separately

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Mesh Assets

Meshes are stored as MeshSet resources (type 0x49B156D4) containing geometry, materials, and skeleton data.

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Mesh Editor Features

Real-time mesh preview with:
  • Orbit Camera: Click and drag to rotate
  • Pan: Middle mouse drag
  • Zoom: Mouse wheel
  • Material Preview: Shows textures and shaders
  • Lighting: Configurable sun and point lights
View different Level of Detail versions:
  • LOD 0: Highest quality
  • LOD 1-3: Progressive simplification
  • Toggle section visibility
  • Highlight individual sections
Preview mesh with different material sets:
  • View ObjectVariation assignments
  • See material parameters
  • Check texture references
  • Validate MeshVariationDatabase entries

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Importing Meshes

1

Prepare FBX File

Export from your 3D software as FBX:
  • Format: FBX 2014/2015 Binary
  • Up Axis: Y-up (convert if needed)
  • Scale: Centimeters
  • Triangulate: On
  • Bake Animation: If including skeleton
2

Import in Frosty

  1. Open the mesh asset
  2. Click Import in the toolbar
  3. Select your FBX file
  4. Configure import settings:
    • LOD Level: Which LOD to replace
    • Skeleton: Import or use existing
    • Materials: Preserve or import
3

Verify Import

Check the imported mesh:
  • UV channels preserved
  • Vertex colors intact
  • Skeleton bone count matches
  • Material assignments correct
Meshes can have additional vertex data like MaxBonesPerVertex, multiple UV channels, and color channels. Verify these in the section properties.

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Exporting Meshes

  1. Click Export in the mesh editor
  2. Choose export options:
    • Format: FBX or DAE
    • LOD: Select which LOD levels
    • Skeleton: Include bone hierarchy
    • Flatten Hierarchy: Simplify bone structure
  3. Select export location

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Sound Assets

Sound data is stored as WAV resources with optional streaming.

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Sound Editor

1

Open Sound Asset

Find sound assets by searching for SoundWaveAsset or NewWaveResource types.
2

Import Audio

  1. Click Import
  2. Select WAV file (PCM format recommended)
  3. Audio is automatically converted to game format
3

Export Audio

  1. Click Export
  2. Saves as standard WAV file
  3. Can be edited in external audio software

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Lua Scripts

Compiled Lua scripts (type 0xAFECB022) can be viewed and edited.

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Lua Editor

  1. View Decompiled Code: See the Lua source
  2. Syntax Highlighting: Color-coded Lua syntax
  3. Edit and Save: Modify logic and recompile
  4. Export Script: Save as .lua file
Lua editing requires understanding of the game’s Lua API. Incorrect scripts can cause crashes.

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Object Variations

ObjectVariation assets define material and texture sets for meshes.

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Variation Editor

View and modify material assignments:
  • Material shader references
  • Texture parameters
  • Scalar/vector parameters
  • Material flags
Link variations to MeshVariationDatabase entries:
  • Database reference
  • Variation index
  • Multiple database support
See how variations look on the mesh:
  • Toggle between variations
  • Compare material differences
  • Validate texture assignments

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EBX Entity Assets

EBX assets contain game entities with properties and references.

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Property Grid Editor

1

Navigate Properties

  • Expandable Categories: Organize properties
  • Type Information: Shows data types
  • Reference Links: Click to open referenced assets
  • Array/List Editing: Add, remove, reorder items
2

Edit Values

Different editors for different types:
  • Numeric: Sliders or direct input
  • Boolean: Checkboxes
  • String: Text fields
  • References: Asset pickers
  • Structs: Nested property groups
3

Transient Properties

Some properties are marked transient:
  • Runtime-only data
  • Not serialized normally
  • Requires special handling (set IsTransientModified)
Transient modifications are tracked separately in the project file to ensure proper serialization.

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Asset Linking

Many assets have linked dependencies that are tracked automatically: 
EBX Asset
  ├─ RES Texture Reference
  │   └─ Chunk (mipmap data)
  └─ RES Mesh Reference
      └─ Chunk (geometry data)
How Linking Works:
  • Modifying a texture automatically links its chunk data
  • The chunk’s H32 hash is updated to match the parent asset
  • All linked assets are saved together in the project
  • Bundle modifications propagate to linked assets

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Custom Asset Handlers

Some assets use custom handlers for specialized editing:

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Handler Types

Merged resource handler:
  • Combines multiple shader definitions
  • Handles shader parameter merging
  • Type: 0xD8F5DAAF
Custom handlers are registered by plugins. Check the Plugins directory in the source code to see available handlers.

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Common Workflows

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Replacing a Character Texture

  1. Search for the character’s texture asset
  2. Open in Texture Editor
  3. Export current texture as reference
  4. Edit in image editor (Photoshop, GIMP, etc.)
  5. Import modified texture
  6. Save project
  7. Test in game

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Modifying Weapon Stats

  1. Find weapon’s EBX blueprint
  2. Open in Property Grid
  3. Locate stat properties (damage, range, etc.)
  4. Modify values
  5. Check for transient properties that need special flags
  6. Save project

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Creating a Custom Material Variation

  1. Duplicate existing ObjectVariation asset
  2. Modify material parameters
  3. Change texture references
  4. Link to MeshVariationDatabase
  5. Apply to mesh for testing

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Next Steps

Package Mods

Learn how to export your modifications as distributable mods

Best Practices

Follow modding best practices for quality and compatibility

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