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# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright 2010 Fabian Fricke.
# Relaxes selected vertices while retaining the shape as much as possible
bl_info = {
"name": "Relax",
"author": "Fabian Fricke",
"version": (1, 2, 0),
"blender": (2, 80, 0),
"location": "View3D > Edit Mode Context Menu > Relax ",
"description": "Relax the selected verts while retaining the shape",
"warning": "",
"doc_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"
"Scripts/Modeling/Relax",
"category": "Mesh",
}
"""
Usage:
Launch from "W-menu" or from "Mesh -> Vertices -> Relax"
Additional links:
Author Site: http://frigi.designdevil.de
e-mail: frigi.f {at} gmail {dot} com
"""
import bpy
from bpy.props import IntProperty
def relax_mesh(context):
# deselect everything that's not related
for obj in context.selected_objects:
obj.select_set(False)
# get active object
obj = context.active_object
# duplicate the object so it can be used for the shrinkwrap modifier
obj.select_set(True) # make sure the object is selected!
bpy.ops.object.mode_set(mode='OBJECT')
bpy.ops.object.duplicate()
target = context.active_object
# remove all other modifiers from the target
for m in range(0, len(target.modifiers)):
target.modifiers.remove(target.modifiers[0])
context.view_layer.objects.active = obj
sw = obj.modifiers.new(type='SHRINKWRAP', name='relax_target')
sw.target = target
# run smooth operator to relax the mesh
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.vertices_smooth(factor=0.5)
bpy.ops.object.mode_set(mode='OBJECT')
# apply the modifier
bpy.ops.object.modifier_apply(modifier='relax_target')
# delete the target object
obj.select_set(False)
target.select_set(True)
bpy.ops.object.delete()
# go back to initial state
obj.select_set(True)
bpy.ops.object.mode_set(mode='EDIT')
class Relax(bpy.types.Operator):
"""Relaxes selected vertices while retaining the shape """ \
"""as much as possible"""
bl_idname = 'mesh.relax'
bl_label = 'Relax'
bl_options = {'REGISTER', 'UNDO'}
iterations: IntProperty(name="Relax iterations",
default=1, min=0, max=100, soft_min=0, soft_max=10)
@classmethod
def poll(cls, context):
obj = context.active_object
return (obj and obj.type == 'MESH')
def execute(self, context):
for i in range(0,self.iterations):
relax_mesh(context)
return {'FINISHED'}
def menu_func(self, context):
self.layout.operator(Relax.bl_idname, text="Relax")
def register():
bpy.utils.register_class(Relax)
bpy.types.VIEW3D_MT_edit_mesh_context_menu.append(menu_func)
bpy.types.VIEW3D_MT_edit_mesh_vertices.append(menu_func)
def unregister():
bpy.utils.unregister_class(Relax)
bpy.types.VIEW3D_MT_edit_mesh_context_menu.remove(menu_func)
bpy.types.VIEW3D_MT_edit_mesh_vertices.remove(menu_func)
if __name__ == "__main__":
register()
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