1 files changed, 9 insertions, 0 deletions
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilopacity.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilopacity.c
index 12576b3d27f..93f3776827b 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpencilopacity.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilopacity.c
@@ -51,6 +51,7 @@ static void initData(GpencilModifierData *md)
   OpacityGpencilModifierData *gpmd = (OpacityGpencilModifierData *)md;
   gpmd->pass_index = 0;
   gpmd->factor = 1.0f;
+  gpmd->hardeness = 1.0f;
   gpmd->layername[0] = '\0';
   gpmd->materialname[0] = '\0';
   gpmd->vgname[0] = '\0';
@@ -104,6 +105,14 @@ static void deformStroke(GpencilModifierData *md,
     return;
   }
 
+  /* Hardeness (at stroke level). */
+  if (mmd->modify_color == GP_MODIFY_COLOR_HARDENESS) {
+    gps->hardeness *= mmd->hardeness;
+    CLAMP(gps->hardeness, 0.0f, 1.0f);
+
+    return;
+  }
+
   for (int i = 0; i < gps->totpoints; i++) {
     bGPDspoint *pt = &gps->points[i];
     MDeformVert *dvert = gps->dvert != NULL ? &gps->dvert[i] : NULL;