Sculpt: Cloth Filter

This tool is similar to the cloth brush, but it applies the cloth
simulation deformation to the whole mesh in an uniform way. The
simulation can be controlled using the mask to pin vertices and the face
sets to define force action areas.

It uses the same solver as the cloth brush which now no longer depends
on StrokeCache.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D7857

release/scripts/startup/bl_ui/space_toolsystem_toolbar.py

@@ -1228,6 +1228,25 @@ class _defs_sculpt:
             draw_settings=draw_settings,
         )
 
+    @ToolDef.from_fn
+    def cloth_filter():
+        def draw_settings(_context, layout, tool):
+            props = tool.operator_properties("sculpt.cloth_filter")
+            layout.prop(props, "type", expand=False)
+            layout.prop(props, "strength")
+            layout.prop(props, "cloth_mass")
+            layout.prop(props, "cloth_damping")
+            layout.prop(props, "use_face_sets")
+
+        return dict(
+            idname="builtin.cloth_filter",
+            label="Cloth Filter",
+            icon="ops.sculpt.cloth_filter",
+            widget=None,
+            keymap=(),
+            draw_settings=draw_settings,
+        )
+
 
 class _defs_vertex_paint:
 
@@ -2402,6 +2421,7 @@ class VIEW3D_PT_tools_active(ToolSelectPanelHelper, Panel):
             _defs_sculpt.hide_border,
             None,
             _defs_sculpt.mesh_filter,
+            _defs_sculpt.cloth_filter,
             None,
             _defs_transform.translate,
             _defs_transform.rotate,