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# SPDX-License-Identifier: GPL-2.0-or-later
bl_info = {
"name": "Split Solidify",
"author": "zmj100, updated by zeffii to BMesh",
"version": (0, 1, 2),
"blender": (2, 80, 0),
"location": "View3D > Tool Shelf",
"description": "",
"warning": "",
"doc_url": "",
"category": "Mesh",
}
import bpy
import bmesh
from bpy.types import Operator
from bpy.props import (
EnumProperty,
FloatProperty,
BoolProperty,
)
import random
from math import cos
# define the functions
def solidify_split(self, list_0):
loc_random = self.loc_random
random_dist = self.random_dist
distance = self.distance
thickness = self.thickness
normal_extr = self.normal_extr
bm = self.bm
for fi in list_0:
bm.faces.ensure_lookup_table()
f = bm.faces[fi]
list_1 = []
list_2 = []
if loc_random:
d = random_dist * random.randrange(0, 10)
elif not loc_random:
d = distance
# add new vertices
for vi in f.verts:
bm.verts.ensure_lookup_table()
v = bm.verts[vi.index]
if normal_extr == 'opt0':
p1 = (v.co).copy() + ((f.normal).copy() * d) # out
p2 = (v.co).copy() + ((f.normal).copy() * (d - thickness)) # in
elif normal_extr == 'opt1':
ang = ((v.normal).copy()).angle((f.normal).copy())
h = thickness / cos(ang)
p1 = (v.co).copy() + ((f.normal).copy() * d)
p2 = p1 + (-h * (f.normal).copy())
v1 = bm.verts.new(p1)
v2 = bm.verts.new(p2)
v1.select = False
v2.select = False
list_1.append(v1)
list_2.append(v2)
# add new faces, allows faces with more than 4 verts
n = len(list_1)
k = bm.faces.new(list_1)
k.select = False
for i in range(n):
j = (i + 1) % n
vseq = list_1[i], list_2[i], list_2[j], list_1[j]
k = bm.faces.new(vseq)
k.select = False
list_2.reverse()
k = bm.faces.new(list_2)
k.select = False
bpy.ops.mesh.normals_make_consistent(inside=False)
bmesh.update_edit_mesh(self.me, loop_triangles=True)
class MESH_OT_split_solidify(Operator):
bl_idname = "mesh.split_solidify"
bl_label = "Split Solidify"
bl_description = "Split and Solidify selected Faces"
bl_options = {"REGISTER", "UNDO"}
distance: FloatProperty(
name="",
description="Distance of the splitted Faces to the original geometry",
default=0.4,
min=-100.0, max=100.0,
step=1,
precision=3
)
thickness: FloatProperty(
name="",
description="Thickness of the splitted Faces",
default=0.04,
min=-100.0, max=100.0,
step=1,
precision=3
)
random_dist: FloatProperty(
name="",
description="Randomization factor of the splitted Faces' location",
default=0.06,
min=-10.0, max=10.0,
step=1,
precision=3
)
loc_random: BoolProperty(
name="Random",
description="Randomize the locations of splitted faces",
default=False
)
del_original: BoolProperty(
name="Delete original faces",
default=True
)
normal_extr: EnumProperty(
items=(('opt0', "Face", "Solidify along Face Normals"),
('opt1', "Vertex", "Solidify along Vertex Normals")),
name="Normal",
default='opt0'
)
def draw(self, context):
layout = self.layout
layout.label(text="Normal:")
layout.prop(self, "normal_extr", expand=True)
layout.prop(self, "loc_random")
if not self.loc_random:
layout.label(text="Distance:")
layout.prop(self, "distance")
elif self.loc_random:
layout.label(text="Random distance:")
layout.prop(self, "random_dist")
layout.label(text="Thickness:")
layout.prop(self, "thickness")
layout.prop(self, "del_original")
def execute(self, context):
obj = bpy.context.active_object
self.me = obj.data
self.bm = bmesh.from_edit_mesh(self.me)
self.me.update()
list_0 = [f.index for f in self.bm.faces if f.select]
if len(list_0) == 0:
self.report({'WARNING'},
"No suitable selection found. Operation cancelled")
return {'CANCELLED'}
elif len(list_0) != 0:
solidify_split(self, list_0)
context.tool_settings.mesh_select_mode = (True, True, True)
if self.del_original:
bpy.ops.mesh.delete(type='FACE')
else:
pass
return {'FINISHED'}
def register():
bpy.utils.register_class(MESH_OT_split_solidify)
def unregister():
bpy.utils.unregister_class(MESH_OT_split_solidify)
if __name__ == "__main__":
register()
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