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# SPDX-FileCopyrightText: 2010-2023 Blender Authors
#
# SPDX-License-Identifier: GPL-2.0-or-later
from bpy.types import Operator
from mathutils import Vector
def randomize_selected(context, seed, delta, loc, rot, scale, scale_even, _scale_min):
import random
from random import uniform
random.seed(seed)
def rand_vec(vec_range):
return Vector(uniform(-val, val) for val in vec_range)
for obj in context.selected_objects:
if loc:
if delta:
obj.delta_location += rand_vec(loc)
else:
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:
vec = rand_vec(rot)
rotation_mode = obj.rotation_mode
if rotation_mode in {'QUATERNION', 'AXIS_ANGLE'}:
obj.rotation_mode = 'XYZ'
if delta:
obj.delta_rotation_euler[0] += vec[0]
obj.delta_rotation_euler[1] += vec[1]
obj.delta_rotation_euler[2] += vec[2]
else:
obj.rotation_euler[0] += vec[0]
obj.rotation_euler[1] += vec[1]
obj.rotation_euler[2] += vec[2]
obj.rotation_mode = rotation_mode
else:
uniform(0.0, 0.0), uniform(0.0, 0.0), uniform(0.0, 0.0)
if scale:
if delta:
org_sca_x, org_sca_y, org_sca_z = obj.delta_scale
else:
org_sca_x, org_sca_y, org_sca_z = obj.scale
sca_x, sca_y, sca_z = (uniform(-scale[0] + 2.0, scale[0]),
uniform(-scale[1] + 2.0, scale[1]),
uniform(-scale[2] + 2.0, scale[2]))
if scale_even:
aX = sca_x * org_sca_x
aY = sca_x * org_sca_y
aZ = sca_x * org_sca_z
else:
aX = sca_x * org_sca_x
aY = sca_y * org_sca_y
aZ = sca_z * org_sca_z
if delta:
obj.delta_scale = aX, aY, aZ
else:
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 (
BoolProperty,
FloatVectorProperty,
IntProperty,
)
class RandomizeLocRotSize(Operator):
"""Randomize objects location, rotation, and 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",
min=0,
max=10000,
default=0,
)
use_delta: BoolProperty(
name="Transform Delta",
description="Randomize delta transform values instead of regular transform",
default=False,
)
use_loc: BoolProperty(
name="Randomize Location",
description="Randomize the location values",
default=True,
)
loc: FloatVectorProperty(
name="Location",
description="Maximum distance the objects can spread over each axis",
min=-100.0,
max=100.0,
default=(0.0, 0.0, 0.0),
subtype='TRANSLATION',
)
use_rot: BoolProperty(
name="Randomize Rotation",
description="Randomize the rotation values",
default=True,
)
rot: FloatVectorProperty(
name="Rotation",
description="Maximum rotation over each axis",
min=-3.141592, # math.pi
max=+3.141592,
default=(0.0, 0.0, 0.0),
subtype='EULER',
)
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="Minimum Scale Factor",
description="Lowest scale percentage possible",
min=-1.0, max=1.0, precision=3,
default=0.15,
)'''
scale: FloatVectorProperty(
name="Scale",
description="Maximum scale randomization over each axis",
min=-100.0,
max=100.0,
default=(1.0, 1.0, 1.0),
)
@classmethod
def poll(cls, context):
return context.mode == 'OBJECT'
def execute(self, context):
seed = self.random_seed
delta = self.use_delta
loc = None if not self.use_loc else self.loc
rot = None if not self.use_rot else Vector(self.rot)
scale = None if not self.use_scale else self.scale
scale_even = self.scale_even
# scale_min = self.scale_min
scale_min = 0
randomize_selected(context, seed, delta, loc, rot, scale, scale_even, scale_min)
return {'FINISHED'}
classes = (
RandomizeLocRotSize,
)
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