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Pixel Era/Quick Setup

Add overlap events

Use GPU based overlap events powered by Pixel Era's GPU to CPU readback

1. Name the source

Create a Pixel Era Overlap Emulator asset. Add Fire and note its Source Index. Choose a preview mesh and material.
Fire source card in the Overlap Emulator
  1. Name the effect
    This is the name received by Blueprint events.
  2. Remember the source index
    Use the same index in its material instance.

2. Prepare the material

Add Pixel Era: Overlap Source. Connect its WPO output to World Position Offset, even without animation.
Overlap Source WPO output connected to the material
  1. Connect WPO
    Keep this connection even for a static source.

3. Match the source

In the material instance, set PESourceIndex to Fire’s index. Set PixelEraCollisionEnabled to 1. Assign the material to your mesh.
Source index and participation settings in the material instance
  1. Match Source Index
    Use Fire’s source index, 0 in this example.
  2. Participation: 1
    Keep PixelEraCollisionEnabled at 1.

4. Prepare the mesh

Enable Allow CPU Access on the Static Mesh and disable Nanite. Use a closed mesh for inside-volume detection. Engine collision may be disabled.
Static Mesh Allow CPU Access setting
  1. Nanite: off
  2. Allow CPU Access: on

5. Place the manager

Add one Pixel Era Overlap Manager and assign your Overlap Emulator asset. Place your prepared source mesh.
Overlap Manager assigned DA_FireSource
  1. Assign your Overlap Emulator

6. Add the receiver

Add Pixel Era Overlapper to your actor. Adjust Radius, Height, and relative location.
Overlapper capsule size and sweep settings
  1. Capsule dimensions
    Height is the full height, including both caps.
  2. Sweep Movement
    Enabled by default. Disable before teleporting, then re-enable after the move.

7. React to Fire

Select Overlapper in the Blueprint. Under Events, click + for On Begin Overlap. Loop through Source Names, then use Switch on Name → Fire.
Begin Overlap source-name loop and Fire response
  1. Begin Overlap
    Loop through the names to trigger each effect.

End the response

Use On End Overlap the same way.
End Overlap source-name loop and Fire response
  1. End Overlap
    Use the matching source names to stop their response.
Updated Oct 17, 2026

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