Custom highlight style

By the end of this you will have your own hover feedback style, usable by any interaction.

Steps

1. Create a Blueprint deriving from BPC_Highlight.
2. Override StartHighlight and EndHighlight with your effect.
3. Override UpdateColor if your effect is colour-driven.
4. Set your new class as Highlight Class on any interaction component.

AFS_Core_Highlight_styles.pngThe three shipped highlight styles compared

Notes

The base class handles the lifetime for you: TickHighlight is called every frame while hovering, and EndHighlight fires automatically once those calls stop. You never need to detect unhover.

Look at the three shipped styles for reference — BPC_Highlight_Material drives material parameters, BPC_Highlight_MeshCopy spawns duplicate geometry, and BPC_Highlight_PostProcess uses a shared stencil-based outline.