======Set up a Projector======

Add a Projector to the model and define what details it projects and what generators it projects onto. 

Learn more about [[introduction_to_projectors|Projectors]].

=====Prerequisites=====
  * At least one [[base_generator|Base generator]] with one or more child nodes. The child nodes are the details that project onto the model.
  * At least one target generator to cast details onto (for example, a Trunk generator).

Add the Base and target generators to the model like you [[manage-generators|add other generators]].

=====Add a Projector=====

To add a Projector:

  - From the Tree Window Toolbar, select **Scene Objects** > **Projectors** > **Add Projector**. 
  - Select the Projector type.

To position the Projector, move or rotate the Projector scene object like any other scene object.

=====Use a Projector on the model=====

To use a Projector on the model:
  - Select the Projector scene object to open the [[projector_generator|Projector properties]].
  - Under **Target Generators**, select one or more generators you want to project details onto. 
  - Under **Base Generators**, select one or more Base generators to represent the Projector in the generation hierarchy.
  - Edit attributes in the Projector properties and Base generator properties to change the projection pattern.

>**Important**: The Base generators must be in a later pass than the target generators. For example, if the target generators are in pass 2, the Base generators must be in pass 3 or above.