Refactor depth-related tests and improve parameter handling in image cutout symmetry

tools/nodes/common/smoothing.py

@@ -97,12 +97,14 @@ def pinned_smooth(
     iterations,
     region,
     weight=1.0,
-    movement=None,
     pin_boundary=True,
     pin_sharp=True,
 ):
     """Smooth positions toward a pinned target inside an influence region.
 
+    ``weight`` is the smoothing weight: each point moves that share of the way
+    to the target every iteration, scaled further by the sharpness of the
+    normal field and the influence region.
     ``pin_boundary`` sends boundary points to a boundary-only blur so an outline
     is never dragged inward. ``pin_sharp`` lowers the weight of creases through
     the sharpness of the normal field. Junction bands keep the sharpness weight
@@ -158,12 +160,6 @@ def pinned_smooth(
     offset.operation = "SCALE"
     links.new(difference.outputs[0], offset.inputs[0])
     links.new(weight, offset.inputs[3])
-    if movement is not None:
-        masked = nodes.new("ShaderNodeVectorMath")
-        masked.operation = "MULTIPLY"
-        links.new(offset.outputs[0], masked.inputs[0])
-        masked.inputs[1].default_value = movement
-        offset = masked
     set_position = nodes.new("GeometryNodeSetPosition")
     links.new(current, set_position.inputs["Geometry"])
     links.new(offset.outputs[0], set_position.inputs["Offset"])