User Tools

Site Tools

Basic Workflow

The SpeedTree Modeler, which runs separately from Unity, offers procedural and hand modeling tools that allow both efficiency and precision.

Note: SpeedTree 8 for Unity is compatible only with Unity 2018.3 and later.
Note: Files exported by the SpeedTree for Unity Modeler will only work inside of Unity (.ST)

Purchasing the Modeler

SpeedTree 8 for Unity is available with a subscription that can be purchased here: The subscription will allow you to edit and create trees. Custom licensing is also available.

Included in the subscription application are these features:

Free Export Only Mode

Log in with a free SpeedTree Store account to export the new SpeedTree samples models to Unity. Export-only mode replaces our drop-in ready models on the SpeedTree store with a more flexible approach to bringing SpeedTrees to Unity.

Coming soon: v8 Drop-in-ready models will be available soon on the Unity Asset Store.

SpeedTree models (.SPM) purchased from the store can be opened, allowing artists to change the seasons and wind options before exporting a SpeedTree runtime file (.ST). Editing and saving are disabled in export only mode. For the full version of SpeedTree for Unity, simply activate a subscription through the SpeedTree store.

How Does It Work?

SpeedTree 8 for Unity can open SpeedTree files (.SPM) and export them in a format specific to Unity (.ST). SpeedTree 8 for Unity will not export meshes outside of the “.ST” format and is incompatible with other game engines.

Using the SpeedTree Modeler is a three-step process:

  1. Create or purchase a SpeedTree model: Whether you use models from our library or create them from scratch using the SpeedTree Modeler, you’ll need a model to get started. Models consist of the SpeedTree files (.SPM) and the textures and component meshes (.OBJ, .FBX) associated with it.
  2. Export the model as a “.ST” file: SpeedTree models are exported directly into your Unity project. SpeedTrees can be exported with up to 3 LODs and a compatible wind for use inside Unity.
  3. Import models into Unity: SpeedTree models are imported into Unity like any other asset. They come in as a Static Mesh with extra vertex attributes to implement wind and smooth LOD. You can do anything with them that you can do with a Static Mesh inside of Unity.
Note: For more help with setup in Unity see __