Rasagar/Library/PackageCache/com.unity.render-pipelines.high-definition/Documentation~/snippets/shader-properties/autodesk-interactive/mask-threshold.md

MaskThreshold The opacity threshold HDRP uses to to determine which areas of the MaskMap render as transparent or completely opaque. For example, for a MaskThreshold value of 0.5, a pixel in the MaskMap with a value of 0.6 appears completely opaque and a pixel with a value of 0.4 appears completely transparent.