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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import bpy
import bmesh
from random import uniform
def vertexColorMask(self,context):
obj = bpy.context.active_object
mesh= obj.data
bpy.ops.object.mode_set(mode='EDIT', toggle=False)
bpy.ops.mesh.select_all(action="DESELECT")
bm = bmesh.from_edit_mesh(mesh)
bm.faces.ensure_lookup_table()
islands = []
faces = bm.faces
try:
color_layer = bm.loops.layers.color["RGBMask"]
except:
color_layer = bm.loops.layers.color.new("RGBMask")
while faces:
faces[0].select_set(True)
bpy.ops.mesh.select_linked()
islands.append([f for f in faces if f.select])
bpy.ops.mesh.hide(unselected=False)
faces = [f for f in bm.faces if not f.hide]
bpy.ops.mesh.reveal()
for island in islands:
color = (uniform(0,1),uniform(0,1),uniform(0,1),1)
for face in island:
for loop in face.loops:
loop[color_layer] = color
bpy.ops.object.mode_set(mode="VERTEX_PAINT")
class createVCMask(bpy.types.Operator):
bl_idname = "mesh.vertex_color_mask"
bl_label = "Vertex Color Mask"
bl_description = ("Create a Vertex Color Mask")
bl_options = {"REGISTER", "UNDO"}
@classmethod
def poll(cls, context):
obj = context.active_object
return obj is not None
def execute(self, context):
vertexColorMask(self, context)
return {'FINISHED'}
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