Paper 2D Sprite Editor

Assign a Default Material to use when rendering the Sprite. This material is the default material used when no other material is assigned.

For more information about Sprite Materials, see the Sprite Materials documentation.

Set the point at which the sprite can pivot. You can set the pivot point in the View Sprite Editor mode's viewport using the widget. You can also set the pivot point by selecting a preset location using the drop down menu.

Selecting the Custom option, will allow you to manually set a Custom Pivot Point using X and Y values.

Set the type of collision the sprite should use. By selecting None the sprite will not collide with physics objects or influence other physics objects. By selecting the Use 3D Physics option, the sprite will collide with objects and other objects can collide with the sprite.

Here you can set the type of Collision Geometry that will surround the Sprite. You can select from the following options:

• Source Bounding Box: Uses a simple bounding box of the sprite, set to the dimensions of the extraction grid.
• Tight Bounding Box: Uses a collision box that is tight to the Sprite's dimensions, excluding any transparent layer or background.
• Shrink Wrapped: Uses a collision box that will conform to the edges of the sprite, creating a cut out of the sprite.

Here you can select from a list of collision setting presets, or access a range of properties by selecting the Custom option. You can select the following collision setting presets: The sprite will act as a

• No Collision: Disables collision interactions with the sprite.
• Block All: The Sprite will act as a WorldStatic object that blocks all actors by default. All new custom channels will use its own default response.
• OverlapAll: The Sprite will act as a WorldStatic object that overlaps all actors by default. All new custom channels will use its own default response.
• BlockAllDynamic: The Sprite will act as a WorldDynamic object that blocks all actors by default. All new custom channels will use its own default response.
• OverlapAllDynamic: The Sprite will act as a WorldDynamic object that overlaps all actors by default. All new custom channels will use its own default response.
• IgnoreOnlyPawn: The Sprite will act as a WorldDynamic object that ignores Pawn and Vehicle objects. All other channels will be set to default.
• Pawn: The Sprite will act as a Pawn object. Can be used for capsule of any playable character or AI.
• Spectator: The Sprite will act as a Pawn object that ignores all other actors except WorldStatic objects.
• Character Mesh: The Sprite will act as the same Pawn object that is used for Character Mesh objects. All other channels will be set to default.
• PhysicsActor: The Sprite will act as a Simulating actor.
• Destructible: The Sprite will act as a Destructible actor.
• InvisibleWall: The Sprite will act as a WorldStatic object that is invisible.
• InvisableWallDynamic: The Sprite will act as a WorldDynamic object that is invisible.
• Trigger: The Sprite will act as a WorldDynamic object that is used for triggers. All other channels will be set to default.
• Ragdoll: The Sprite will act as a Simulating Skeletal Mesh Component. All other channels will be set to default.
• Vehicle: The Sprite will act as a Vehicle object that blocks Vehicle, WorldStatic and WorldDynamic objects. All other channels will be set to default.
• UI: The sprite will act as a WorldStatic object that overlaps all actors by default. All new custom channels will use its own default response.

If Custom is selected, the additional options are available to fine tune the sprites collision properties. See below for more information.

Here you can add collision shapes to the sprite for dynamic collision boundaries. You can Add (+) as many collision shapes as you desire and each collision shape can be modified using its properties. The following properties are adjustable per collision box.

• Shape Type:

Here you can add collision shapes to the sprite for dynamic collision boundaries. You can Add additional Collision Shapes using the toolbar buttons (Add Box, Add Polygon, and Add Circle). Each collision shape will appear as an array and can be modified using its properties.

The following properties are adjustable per collision shape.

• Shape Type: Reference the shape type of the collision shape.
• Vertices: Set the X and Y location of the Collision Shape's vertices.
• Box Size: Set the scale of the X and Y dimensions of the shape. This is option is only editable when working with a Box or Circle Collision Shape.
• Rotation: Set the rotation of the Collision Shape, in degrees.
• Negative Winding: When enabled, the Collision Shape's winding, or the order the Vertice locations are applied, will be reversed, regardless of the order of the Vertices. This option is only editable when working with a Polygon Collision Shape.

Select the method of collision used when enabled. You can select from the following options:

• No Collision: Will not create any representation in the physics engine. Cannot be used for spatial queries (raycasts, sweets, overlaps) or simulation (rigid body, constraints). Best performance possible (especially for moving objects).
• Query Only (No Physics Collision): Only used for spatial queries (raycasts, sweeps, and overlaps). Cannot be used for simulation (rigid body, constraints). Useful for character movement and things that don't need physical simulation. Performance gains by keeping data out of the simulation tree.
• Physics Only (No Query Collision): Only used only for physics simulation (rigidbody and constraints). Cannot be used for spatial queries (raycasts, sweeps, overlaps). Used for jiggly bits on characters that do not need per bone detection. Performance gains by keeping data out of the query tree.
• Collision Enabled (Query and Physics): Can be used for both spatial queries (raycats, sweeps, overlaps) and simulation (rigid body, constraints).

Set what layer the Sprite will occupy. You can choose from the following options:

• WorldStatic
• WorldDynamic
• Pawn
• PhysicsBody
• Vehicle
• Destructible

Toggle how the Sprite will behave for specific facets of its collision properties and representation properties, and how it will appear during playback. You can toggle each property to be Ignored which will ignore the property, Overlap will allow the property to overlap the sprites and Block which will block the property from engaging with the sprite. You can toggle one of these behaviors with the following properties:

• Visibility: Toggle if the Sprite will be visible during run time.
• Camera: Toggle if the Sprite can collide with Camera actors.
• WorldStatic: Toggle if the Sprite can collide with WorldStatic objects in the level.
• WorldDynamic: Toggle if the Sprite can collide with WordDynamic objects in the level.
• Pawn: Toggle if the Sprite can collide with Pawn objects in the level.
• WorldDynamic: Toggle if the Sprite can collide with WordDynamic objects in the level.
• PhysicsBody: Toggle if the Sprite can collide with PhysicsBody objects in the level.
• Vehicle: Toggle if the Sprite can collide with Vehicle objects in the level.
• Descructible: Toggle if the Sprite can collide with Destructible objects in the level.

Select the type of Render Geometry you wish to use to render the sprite in your project. You can choose from the following options:

• Source Bounding Box: This option uses a box of the same dimensions as the source image. If the spite was extracted from a sprite sheet, this render geometry will use a box of the same dimensions as the sprite extraction method.
• Tight Bounding Box: Uses a tightened bounding box gourd the sprite, excluding transparent areas.
• Shrink Wrapped: creates a custom render geometry that molds to the shape of the sprite using the Avoid Vertex Merging, Alpha Threshold, Detail Amount, and Simplify Epsilon property values.
• Fully Custom: Set custom X and Y geometry dimensions to render the Sprite.
• Diced: Spits a single large square render geometry into smaller squares, to include the sprite while including less of the transparent background, using less vertices than the Shrink Wrapped method.

When enabled, you can avoid vertex merging so extra vertices are preserved.