API Reference > imodeljs-common > DisplayStyles > HiddenLine > HiddenLine.Settings > transparencyThreshold transparencyThreshold Readonly transparencyThreshold: number A value in the range [0.0, 1.0] specifying a threshold below which transparent surfaces should not be drawn. A value of 0.0 indicates any surface that is not 100% opaque should not be drawn. A value of 0.25 indicates any surface that is less than 25% opaque should not be drawn. A value of 1.0 indicates that all surfaces should be drawn regardless of transparency. note values will be clamped to the range [0.0, 1.0]. note Defaults to 1.0. Defined in core/common/src/HiddenLine.ts Line 186 Last Updated: 11 June, 2024