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Much of modeling a tree in SpeedTree is done with various asset files that are imported and used in the tree. The asset bars in the Modeler provide assets like textures or meshes to use in the tree. All of the asset bars have a common interface for adding, removing, and applying these assets to the tree.

Common Asset Settings

Each of the asset bars have a common group at the top. The asset currently shown is set using the combo box in this group.

Assets can be added, removed, renamed, and reordered by clicking the +/- button. The “add special” button available on some tabs (+…), will open a file selector and create a new named asset for the chosen file. The clipboard button allows assets to be copied and pasted.

Drag and Drop

Dragging and dropping is the easiest method to assign assets to parts of the tree. You can drag assets either onto the generators in the Generation Editor or onto the actual parts of the tree in the Tree Window.

When dropping an asset onto the tree in the Tree Window, the Modeler will attempt to figure out exactly what you wish to replace. For instance, if a leaf generator has 3 materials assigned, and you drop a different material onto one of those leaves in the Tree Window, then only that asset in the generator will be replaced.

However, if you drop an asset directly onto a generator with multiple assets already assigned (such as a leaf generator with two leaf materials), then all of the assets will be replaced with the one that you dropped. If you hold the ALT key while doing this, then the asset will always be added to the end of the list, instead of replacing what is currently there.