1 files changed, 31 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/geometry_component_curve.cc b/source/blender/blenkernel/intern/geometry_component_curve.cc
index afafd766760..7d0537178ef 100644
--- a/source/blender/blenkernel/intern/geometry_component_curve.cc
+++ b/source/blender/blenkernel/intern/geometry_component_curve.cc
@@ -222,6 +222,37 @@ static void adapt_curve_domain_point_to_spline_impl(const CurveEval &curve,
   mixer.finalize();
 }
 
+/**
+ * A spline is selected if all of its control points were selected.
+ *
+ * \note Theoretically this interpolation does not need to compute all values at once.
+ * However, doing that makes the implementation simpler, and this can be optimized in the future if
+ * only some values are required.
+ */
+template<>
+void adapt_curve_domain_point_to_spline_impl(const CurveEval &curve,
+                                             const VArray<bool> &old_values,
+                                             MutableSpan<bool> r_values)
+{
+  const int splines_len = curve.splines().size();
+  Array<int> offsets = curve.control_point_offsets();
+  BLI_assert(r_values.size() == splines_len);
+
+  r_values.fill(true);
+
+  for (const int i_spline : IndexRange(splines_len)) {
+    const int spline_offset = offsets[i_spline];
+    const int spline_point_len = offsets[i_spline + 1] - spline_offset;
+
+    for (const int i_point : IndexRange(spline_point_len)) {
+      if (!old_values[spline_offset + i_point]) {
+        r_values[i_spline] = false;
+        break;
+      }
+    }
+  }
+}
+
 static GVArrayPtr adapt_curve_domain_point_to_spline(const CurveEval &curve, GVArrayPtr varray)
 {
   GVArrayPtr new_varray;