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Spline-Objects-Tool

A tool for Unreal Engine 4 which allows to spawn Instanced Meshes / Actors / Decals along a spline in the editor. The spline's points can snap to the environment and the objects can be aligned to the surface.

How to install

Create a Plugins folder into your project and paste the folder SplineObjects which is located into ToExport/Plugins/.

Now you can create some Spline Objects Actors.

More Details

You can find some examples of the use in the Spline-Objects-Tool-UE4 project scenes.

Spline Settings

  • Type - To select the current object.
  • Close - To close the spline.
  • Follow Direction - Each object changes their rotation corresponding to the spline's direction.
  • Inverse Direction - To invert the spline's direction. (Only works when Follow Direction is checked)
  • Is Snapping - Points Of the spline snap to the nearest StaticMesh.
  • Is Align to surface - Each object Align to surface. (Only works when Is Snapping is checked)
  • Snapping Radius - Radius to dectect the nearest StaticMesh. (Only works when Is Snapping is checked)
  • Space - Space between each object.

Objects Settings

Decals Spawn Settings (Only works when Is Snapping is checked)

  • Has One Unique Material - To use Decal Material for all Decals.
  • Is Descending - To spawn Decals in Descending Order.
  • Is In Random Order - To spawn Decals in Random Order.
  • Decals - To add new Decal in the array.
  • Decal Material - One Unique Material. (Only works when Has One Unique Material is checked)

Instanced StaticMeshes Spawn Settings

  • Has One Unique Material - To use Static Mesh Material for all Static Meshes.
  • Is Descending - To spawn Static meshes in Descending Order.
  • Is In Random Order - To spawn Static meshes in Random Order.
  • Static Meshes - To add new static mesh in the array.
  • Static Mesh Material - One Unique Material. (Only works when Has One Unique Material is checked)

Actors Spawn Settings

  • Is Descending - To spawn Actors in Descending Order.
  • Is In Random Order - To spawn Actors in Random Order.
  • Blueprint Actors - To add new Actor in the array.

Transform Settings

Location Settings

  • Constant - To spawn objects with the same offset.
  • Random in range - To spawn objects with a random offset between two values.
  • Using Curve - To spawn objects with an offset corresponding to a curve.

Rotation Settings

  • Constant - To spawn objects with the same rotation.
  • Lerp in Range - To spawn objects with a rotation lerping from min to max value.
  • Random in range - To spawn objects with a random rotation between two values.
  • Using Curve - To spawn objects with a rotation corresponding to a curve.

Scale Settings

  • Constant - To spawn objects with the same scale.
  • Lerp in Range - To spawn objects with a scale lerping from min to max value.
  • Random in range - To spawn objects with a random scale between two values.
  • Using Curve - To spawn objects with a scale corresponding to a curve.

Debug Settings

  • Disable Visual - To disable Visual if the spline is too long (to not spawn objects each frame).
  • Show arrows - To display arrow components in the editor view.
  • Color Direction - To change color for the directionnal arrow.
  • Color Normal - To change color for the normal surface arrow.
  • Size - To change arrow size.

To Do

  • Add Spline Meshes.
  • Add multiple materials for each InstancedStaticMeshes.