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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
def randomize_selected(seed, loc, rot, scale, scale_even, scale_min):
import random
from random import uniform
from mathutils import Vector
random.seed(seed)
def rand_vec(vec_range):
return Vector([uniform(-val, val) for val in vec_range])
for obj in bpy.context.selected_objects:
if loc:
obj.location += rand_vec(loc)
else: # otherwise the values change under us
uniform(0.0, 0.0), uniform(0.0, 0.0), uniform(0.0, 0.0)
if rot: # TODO, non euler's
vec = rand_vec(rot)
obj.rotation_euler[0] += vec[0]
obj.rotation_euler[1] += vec[1]
obj.rotation_euler[2] += vec[2]
else:
uniform(0.0, 0.0), uniform(0.0, 0.0), uniform(0.0, 0.0)
if scale:
org_sca_x, org_sca_y, org_sca_z = obj.scale
if scale_even:
sca_x = sca_y = sca_z = uniform(scale[0], - scale[0])
uniform(0.0, 0.0), uniform(0.0, 0.0)
else:
sca_x, sca_y, sca_z = rand_vec(scale)
aX = sca_x + org_sca_x
bX = org_sca_x * scale_min
aY = sca_y + org_sca_y
bY = org_sca_y * scale_min
aZ = sca_z + org_sca_z
bZ = org_sca_z * scale_min
if aX < bX:
aX = bX
if aY < bY:
aY = bY
if aZ < bZ:
aZ = bZ
obj.scale = aX, aY, aZ
else:
uniform(0.0, 0.0), uniform(0.0, 0.0), uniform(0.0, 0.0)
from bpy.props import *
class RandomizeLocRotSize(bpy.types.Operator):
'''Randomize objects loc/rot/scale'''
bl_idname = "object.randomize_transform"
bl_label = "Randomize Transform"
bl_options = {'REGISTER', 'UNDO'}
random_seed = IntProperty(name="Random Seed",
description="Seed value for the random generator",
default=0, min=0, max=1000)
use_loc = BoolProperty(name="Randomize Location",
description="Randomize the scale values", default=True)
loc = FloatVectorProperty(name="Location",
description="Maximun distance the objects can spread over each axis",
default=(0.0, 0.0, 0.0), min=-100.0, max=100.0, subtype='TRANSLATION')
use_rot = BoolProperty(name="Randomize Rotation",
description="Randomize the rotation values", default=True)
rot = FloatVectorProperty(name="Rotation",
description="Maximun rotation over each axis",
default=(0.0, 0.0, 0.0), min=-180.0, max=180.0, subtype='TRANSLATION')
use_scale = BoolProperty(name="Randomize Scale",
description="Randomize the scale values", default=True)
scale_even = BoolProperty(name="Scale Even",
description="Use the same scale value for all axis", default=False)
scale_min = FloatProperty(name="Minimun Scale Factor",
description="Lowest scale percentage possible",
default=0.15, min=-1.0, max=1.0, precision=3)
scale = FloatVectorProperty(name="Scale",
description="Maximum scale randomization over each axis",
default=(0.0, 0.0, 0.0), min=-100.0, max=100.0, subtype='TRANSLATION')
def execute(self, context):
from math import radians
seed = self.properties.random_seed
loc = None if not self.properties.use_loc else self.properties.loc
rot = None if not self.properties.use_rot else self.properties.rot * radians(1.0)
scale = None if not self.properties.use_scale else self.properties.scale
scale_even = self.properties.scale_even
scale_min = self.properties.scale_min
randomize_selected(seed, loc, rot, scale, scale_even, scale_min)
return {'FINISHED'}
def menu_func(self, context):
if context.mode == 'OBJECT':
self.layout.operator(RandomizeLocRotSize.bl_idname,
text="Randomize Transform")
def register():
bpy.types.VIEW3D_MT_transform.append(menu_func)
def unregister():
bpy.types.VIEW3D_MT_transform.remove(menu_func)
if __name__ == "__main__":
register()
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