Arcade-Maniac/Source/Library/PackageCache/com.unity.render-pipelines.high-definition@11.0.0/Documentation~/snippets/shader-properties/surface-options/prepass-threshold.md

- **Prepass Threshold**

The alpha value limit HDRP uses for the transparent depth prepass. This works in the same way as the main Threshold property described above.
This property only appears when you enable the Transparent Depth Prepass checkbox.