Renderer-neutral mask halo drawing instruction.
The backend blurs the prepared mask coverage on the GPU, so the glow follows the exact mask silhouette. Each detection's spread is honored: detections requesting different spreads render in separate blur passes.
Readonly
Peak glow alpha at the silhouette.
Blur radius in screen pixels.
Renderer-neutral mask halo drawing instruction.
The backend blurs the prepared mask coverage on the GPU, so the glow follows the exact mask silhouette. Each detection's spread is honored: detections requesting different spreads render in separate blur passes.