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Assets & Content

Assets are the raw materials of your game — the 3D models, textures, sounds, and animations that bring your world to life. Everything you see, hear, and interact with in a HELIX world is built from assets.

Asset Types​

Meshes (3D Models)​

The geometry that gives objects their shape. A tree trunk, a weapon, a building — all meshes. They come in two flavors:

  • Static Meshes — rigid, non-animated objects (walls, rocks, furniture, props)
  • Skeletal Meshes — meshes with an internal bone structure for animation (characters, creatures, anything that bends and moves organically)

Materials​

Materials define how a surface looks — is it shiny metal, rough stone, glowing neon, translucent glass? A material is a node-based shader graph (yes, more visual scripting!) that combines textures, colors, and math to produce a surface appearance. One material can be shared across many meshes.

Textures​

The 2D images that feed into materials. A brick wall material might use a color texture (the brick pattern), a normal map (surface bumps that catch light), and a roughness map (where it's smooth vs rough). Common formats: .png, .tga, .exr.

Sounds​

Audio files for music, sound effects, ambient noise, and dialogue. HELIX supports .wav and .ogg formats. Sounds can be spatialized in 3D so they get louder as you approach and quieter as you walk away. Use Sound Cues to layer, randomize, and modulate sounds without writing any logic.

Animations​

Sequences of poses applied to Skeletal Meshes. Walk cycles, attack swings, idle fidgets — animations make characters feel alive. They get blended together in Animation Blueprints for smooth, responsive character movement.

The Content Browser​

The Content Browser in HELIX Studio is your file manager for assets. From here you can:

  • Browse and organize assets into folders
  • Search by name, type, or tag
  • Drag assets directly into the viewport to place them in the world
  • Right-click to create new assets (Materials, Blueprints, Input Actions, etc.)
  • Preview meshes, materials, and sounds without leaving the editor

Keep your content organized from the start. A folder structure like /Content/MyProject/Meshes/, /Content/MyProject/Materials/, /Content/MyProject/Audio/ will save you headaches as your project grows.

Importing Assets​

To bring external files into your project:

  1. Click Import in the Content Browser (or drag files in from your OS file manager)
  2. Configure import settings (scale, texture compression, mesh options)
  3. The engine converts your file into a .uasset — the internal format UE5 works with

Supported formats: FBX and glTF for meshes, PNG/TGA/EXR for textures, WAV/OGG for audio.

Referencing Custom Assets in Scripts​

Any asset inside an imported or mounted package can be loaded at runtime in Lua:

-- Load an asset by its game path
local MyAsset = UE.UObject.Load('/Game/YourPackageName/PathToYourAsset/YourAssetName.YourAssetName')

You can get the full path of an asset by right-clicking it in Build Mode and selecting Copy Object Path.

Nanite — High-Poly Without the Pain​

Normally, high-polygon meshes destroy performance. Nanite is UE5's virtualized geometry system that lets you use film-quality assets (millions of polygons) without manual LOD (Level of Detail) setup. Drop in a photogrammetry scan with 10 million triangles, and Nanite figures out how many to render based on screen size and distance. Enable it per-mesh in the import settings.

Lumen — Dynamic Global Illumination​

Lumen is UE5's lighting system that calculates realistic light bouncing in real-time. Move a light, and the entire scene reacts — no baking lightmaps required. Sunlight pouring through a window and bouncing warm tones onto the opposite wall? Lumen handles that automatically. Colored surfaces tint nearby objects, and reflections update as you rearrange the scene.

tip

Keep your Content Browser organized from day one. Use folders like /Characters, /Environment, /Audio, /UI. Future-you will appreciate not having to dig through a pile of 500 unnamed assets.