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

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<td><strong>RoughnessMap</strong></td>
<td>The texture that defines the roughness value of the surface. Note that only the Red channel is taken into account.<br/>If you disable <strong>UseRoughnessMap</strong>, HDRP ignores this property.<br/>Note that HDRP only uses the red channel of this texture to determine the roughness value of the material's surface.</td>
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