Importing

To import a source file, drag it from your file explorer into the Content Browser, or onto the viewport. The engine converts it into an asset in the current folder, and it appears right away.

Supported formats

Kind	Source formats	Becomes
Models	.gltf, .glb, .fbx, .obj	Static Mesh, or Skeletal Mesh + Skeleton + Animations
Textures	.png, .jpg, .jpeg, .tga, .bmp, .dds, .hdr	Texture
Audio	.wav	Audio Stream
Fonts	.ttf, .otf	Font

Importing a model

Models open an import dialog so you can choose what to pull in. It previews the meshes, materials, textures, skeleton, and animations found in the file, and lets you set the following.

Option	What it does
Import Meshes	Bring in the geometry.
Import Skeletons	Bring in the bone hierarchy, for rigged models.
Import Animations	Bring in animation clips.
Import Materials	Create material assets from the file’s materials.
Import Textures	Bring in embedded textures (shown when not importing materials).
Scale	A uniform scale applied on import.
Flip UVs / Flip Normals	Fix models authored with a different convention.
Optimize Mesh	Reorder vertices for better GPU cache use.
Merge Meshes	Combine all meshes in the file into one asset.

A model with skinning becomes a Skeletal Mesh wired to its Skeleton; a plain model becomes a Static Mesh. Material slots are created from the file’s materials, you reassign them later in the mesh’s editor, or per entity with the mesh component’s Material Overrides.

Reimporting

Right-click an asset and choose Reimport From File… to swap its contents for a fresh read of a source file. The asset keeps its identity, so everything referencing it keeps working. This is what you want after editing the source in your DCC tool.

Models, textures, audio, and fonts all support it.

Caution

Do not reimport by dragging the source file in again. That creates a second, separate asset and leaves every existing reference on the old one.

The Texture editor also has a Recook button, which re-reads the source without going through the dialog. It is useful after changing the color space.

Skeletal meshes are a set: if you reimport the mesh after changing its rig, reimport its skeleton and clips from the same source too, so they stay consistent. See Animation.