Tree Editor


The Tree Editor is a feature of nXt which allows you to create definitions for Fractal Trees, save them as .ArPlant files and then use them as plants in nXt.

It uses the nXt Tree Editor to create custom trees, stores a 2D representation of the tree in SketchUp and renders it as a full, fractal, 3D Tree.

Mapping to IRender nXt Plant


After creating an ArPlant in the Tree Editor and saving it, you can map it to a Revit Family.

Tree Editor usage

Launch Tree Editor

Llaunch tree editor.png

Plant Type

Set the type from the File/New menu at the top.

There are four tree types - Standard, Conifer, Broad Crown, Palm and Complex
(Do not use Groundcover with RpTreeMaker).


Each has different setting on the tabs of the tree editor.

Play with the various settings to see what they do.

Trunk Settings


Change the Parameters and see the results at the left.

Foliage and Flowers


You can click on the leaf image to select a different image.

You can also add an image to be used as flowers or fruit

Leaf and Flower Images

You can select new leaves, trunk, etc. by clicking on the image.

You can also add your own leaves and bark to the Plant Image folder and use them for your custom trees.



Click 'Start' on the RayTrace drop down menu to see a sample rendering of the tree with foliage.

Use the mouse and scroll-wheel to on the image to set a new view before starting rendering if desired.

Plant Editor - Ray Trace.jpg

Rendering tips

RpTreeMaker tree placed as an image in SketchUp and rendered with IRender. Note the quality of the fractal rendering and the subtlety of the shadows.

For IRender nXt users, the RpTreeMaker tree will automatically re-render as a full, fractal, 3D tree.

IRender nXt users should make their tree images at the lowest resolution to save time and keep the SketchUp model fast and small. After the tree is re-rendered the original image resolution will not effect the final image.

The 2D Trees will work properly with SketchUp, including shadows, and most other rendering packages. Users of rendering some other products have discovered that they need to explode the tree component, explode the image entity into a face, and remake to tree component in order to get the tree to render properly.

Display Quality

Alpha transparency quality.png

Note: If your alpha transparent images do not display well in SketchUp, you can adjust the quality (vs speed) of Alpha Image display.

Set it to 'nicer' for the best tree display.

Saving LIbraries of Trees

If you save the SketchUp Component of your tree onto the disk, you can then import it as a component into another model and it will contain the information for the tree contained in the component and render as a .ArPlant nXt Plant.

Save tree component.jpg

You can also place several tree in a SketchUp model, and then save all the the tree components as a SketchUp "Local Collection" - which is a library of components you can place in other models.

Local collection.jpg

If you want to share your trees, you can place them in the SketchUp 3D Warehouse.

Then, anyone who downloads your tree component can render it with IRender nXt.

3d warehouse trees.jpg


  • The Tree Editor allows you to choose from four types of trees (more coming soon.)
  • .ArPlant files can be saved and loaded in the editor.
  • .ArPlant files can be loaded into SketchUp for rendering.

Some Limitations on Trees (still numerous)

  • Shrubs may be difficult to do in the current interface.
  • We don’t have templates for things like Herbaceous Plants yet.
  • You can’t change anything about the trees at the moment.

See Also