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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 #####
# <pep8-80 compliant>
from mathutils import Vector
import bpy
from bpy.types import Operator
from bpy.props import (
BoolProperty,
EnumProperty,
FloatProperty,
FloatVectorProperty,
IntProperty,
)
def object_ensure_material(obj, mat_name):
""" Use an existing material or add a new one.
"""
mat = mat_slot = None
for mat_slot in obj.material_slots:
mat = mat_slot.material
if mat:
break
if mat is None:
mat = bpy.data.materials.new(mat_name)
if mat_slot:
mat_slot.material = mat
else:
obj.data.materials.append(mat)
return mat
class ObjectModeOperator:
@classmethod
def poll(cls, context):
return context.mode == 'OBJECT'
class QuickFur(ObjectModeOperator, Operator):
"""Add fur setup to the selected objects"""
bl_idname = "object.quick_fur"
bl_label = "Quick Fur"
bl_options = {'REGISTER', 'UNDO'}
density: EnumProperty(
name="Fur Density",
items=(
('LIGHT', "Light", ""),
('MEDIUM', "Medium", ""),
('HEAVY', "Heavy", "")
),
default='MEDIUM',
)
view_percentage: IntProperty(
name="View %",
min=1, max=100,
soft_min=1, soft_max=100,
default=10,
)
length: FloatProperty(
name="Length",
min=0.001, max=100,
soft_min=0.01, soft_max=10,
default=0.1,
)
def execute(self, context):
fake_context = context.copy()
mesh_objects = [obj for obj in context.selected_objects
if obj.type == 'MESH']
if not mesh_objects:
self.report({'ERROR'}, "Select at least one mesh object")
return {'CANCELLED'}
mat = bpy.data.materials.new("Fur Material")
for obj in mesh_objects:
fake_context["object"] = obj
bpy.ops.object.particle_system_add(fake_context)
psys = obj.particle_systems[-1]
psys.settings.type = 'HAIR'
if self.density == 'LIGHT':
psys.settings.count = 100
elif self.density == 'MEDIUM':
psys.settings.count = 1000
elif self.density == 'HEAVY':
psys.settings.count = 10000
psys.settings.child_nbr = self.view_percentage
psys.settings.hair_length = self.length
psys.settings.use_strand_primitive = True
psys.settings.use_hair_bspline = True
psys.settings.child_type = 'INTERPOLATED'
psys.settings.tip_radius = 0.25
obj.data.materials.append(mat)
psys.settings.material = len(obj.data.materials)
return {'FINISHED'}
class QuickExplode(ObjectModeOperator, Operator):
"""Make selected objects explode"""
bl_idname = "object.quick_explode"
bl_label = "Quick Explode"
bl_options = {'REGISTER', 'UNDO'}
style: EnumProperty(
name="Explode Style",
items=(
('EXPLODE', "Explode", ""),
('BLEND', "Blend", ""),
),
default='EXPLODE',
)
amount: IntProperty(
name="Amount of pieces",
min=2, max=10000,
soft_min=2, soft_max=10000,
default=100,
)
frame_duration: IntProperty(
name="Duration",
min=1, max=300000,
soft_min=1, soft_max=10000,
default=50,
)
frame_start: IntProperty(
name="Start Frame",
min=1, max=300000,
soft_min=1, soft_max=10000,
default=1,
)
frame_end: IntProperty(
name="End Frame",
min=1, max=300000,
soft_min=1, soft_max=10000,
default=10,
)
velocity: FloatProperty(
name="Outwards Velocity",
min=0, max=300000,
soft_min=0, soft_max=10,
default=1,
)
fade: BoolProperty(
name="Fade",
description="Fade the pieces over time",
default=True,
)
def execute(self, context):
fake_context = context.copy()
obj_act = context.active_object
if obj_act is None or obj_act.type != 'MESH':
self.report({'ERROR'}, "Active object is not a mesh")
return {'CANCELLED'}
mesh_objects = [obj for obj in context.selected_objects
if obj.type == 'MESH' and obj != obj_act]
mesh_objects.insert(0, obj_act)
if self.style == 'BLEND' and len(mesh_objects) != 2:
self.report({'ERROR'}, "Select two mesh objects")
self.style = 'EXPLODE'
return {'CANCELLED'}
elif not mesh_objects:
self.report({'ERROR'}, "Select at least one mesh object")
return {'CANCELLED'}
for obj in mesh_objects:
if obj.particle_systems:
self.report({'ERROR'},
"Object %r already has a "
"particle system" % obj.name)
return {'CANCELLED'}
if self.style == 'BLEND':
from_obj = mesh_objects[1]
to_obj = mesh_objects[0]
for obj in mesh_objects:
fake_context["object"] = obj
bpy.ops.object.particle_system_add(fake_context)
settings = obj.particle_systems[-1].settings
settings.count = self.amount
# first set frame end, to prevent frame start clamping
settings.frame_end = self.frame_end - self.frame_duration
settings.frame_start = self.frame_start
settings.lifetime = self.frame_duration
settings.normal_factor = self.velocity
settings.render_type = 'NONE'
explode = obj.modifiers.new(name='Explode', type='EXPLODE')
explode.use_edge_cut = True
if self.fade:
explode.show_dead = False
uv = obj.data.uv_layers.new(name="Explode fade")
explode.particle_uv = uv.name
mat = object_ensure_material(obj, "Explode Fade")
mat.blend_method = 'BLEND'
mat.shadow_method = 'HASHED'
if not mat.use_nodes:
mat.use_nodes = True
nodes = mat.node_tree.nodes
for node in nodes:
if node.type == 'OUTPUT_MATERIAL':
node_out_mat = node
break
node_surface = node_out_mat.inputs['Surface'].links[0].from_node
node_x = node_surface.location[0]
node_y = node_surface.location[1] - 400
offset_x = 200
node_mix = nodes.new('ShaderNodeMixShader')
node_mix.location = (node_x - offset_x, node_y)
mat.node_tree.links.new(node_surface.outputs[0], node_mix.inputs[1])
mat.node_tree.links.new(node_mix.outputs["Shader"], node_out_mat.inputs['Surface'])
offset_x += 200
node_trans = nodes.new('ShaderNodeBsdfTransparent')
node_trans.location = (node_x - offset_x, node_y)
mat.node_tree.links.new(node_trans.outputs["BSDF"], node_mix.inputs[2])
offset_x += 200
node_ramp = nodes.new('ShaderNodeValToRGB')
node_ramp.location = (node_x - offset_x, node_y)
offset_x += 200
mat.node_tree.links.new(node_ramp.outputs["Alpha"], node_mix.inputs["Fac"])
color_ramp = node_ramp.color_ramp
color_ramp.elements[0].color[3] = 0.0
color_ramp.elements[1].color[3] = 1.0
if self.style == 'BLEND':
color_ramp.elements[0].position = 0.333
color_ramp.elements[1].position = 0.666
if obj == to_obj:
# reverse ramp alpha
color_ramp.elements[0].color[3] = 1.0
color_ramp.elements[1].color[3] = 0.0
node_sep = nodes.new('ShaderNodeSeparateXYZ')
node_sep.location = (node_x - offset_x, node_y)
offset_x += 200
mat.node_tree.links.new(node_sep.outputs["X"], node_ramp.inputs["Fac"])
node_uv = nodes.new('ShaderNodeUVMap')
node_uv.location = (node_x - offset_x, node_y)
node_uv.uv_map = uv.name
mat.node_tree.links.new(node_uv.outputs["UV"], node_sep.inputs["Vector"])
if self.style == 'BLEND':
settings.physics_type = 'KEYED'
settings.use_emit_random = False
settings.rotation_mode = 'NOR'
psys = obj.particle_systems[-1]
fake_context["particle_system"] = obj.particle_systems[-1]
bpy.ops.particle.new_target(fake_context)
bpy.ops.particle.new_target(fake_context)
if obj == from_obj:
psys.targets[1].object = to_obj
else:
psys.targets[0].object = from_obj
settings.normal_factor = -self.velocity
explode.show_unborn = False
explode.show_dead = True
else:
settings.factor_random = self.velocity
settings.angular_velocity_factor = self.velocity / 10.0
return {'FINISHED'}
def invoke(self, context, _event):
self.frame_start = context.scene.frame_current
self.frame_end = self.frame_start + self.frame_duration
return self.execute(context)
def obj_bb_minmax(obj, min_co, max_co):
for i in range(0, 8):
bb_vec = obj.matrix_world @ Vector(obj.bound_box[i])
min_co[0] = min(bb_vec[0], min_co[0])
min_co[1] = min(bb_vec[1], min_co[1])
min_co[2] = min(bb_vec[2], min_co[2])
max_co[0] = max(bb_vec[0], max_co[0])
max_co[1] = max(bb_vec[1], max_co[1])
max_co[2] = max(bb_vec[2], max_co[2])
def grid_location(x, y):
return (x * 200, y * 150)
class QuickSmoke(ObjectModeOperator, Operator):
"""Use selected objects as smoke emitters"""
bl_idname = "object.quick_smoke"
bl_label = "Quick Smoke"
bl_options = {'REGISTER', 'UNDO'}
style: EnumProperty(
name="Smoke Style",
items=(
('SMOKE', "Smoke", ""),
('FIRE', "Fire", ""),
('BOTH', "Smoke + Fire", ""),
),
default='SMOKE',
)
show_flows: BoolProperty(
name="Render Smoke Objects",
description="Keep the smoke objects visible during rendering",
default=False,
)
def execute(self, context):
if not bpy.app.build_options.fluid:
self.report({'ERROR'}, "Built without Fluid modifier")
return {'CANCELLED'}
fake_context = context.copy()
mesh_objects = [obj for obj in context.selected_objects
if obj.type == 'MESH']
min_co = Vector((100000.0, 100000.0, 100000.0))
max_co = -min_co
if not mesh_objects:
self.report({'ERROR'}, "Select at least one mesh object")
return {'CANCELLED'}
for obj in mesh_objects:
fake_context["object"] = obj
# make each selected object a smoke flow
bpy.ops.object.modifier_add(fake_context, type='FLUID')
obj.modifiers[-1].fluid_type = 'FLOW'
# set type
obj.modifiers[-1].flow_settings.flow_type = self.style
# set flow behavior
obj.modifiers[-1].flow_settings.flow_behavior = 'INFLOW'
# use some surface distance for smoke emission
obj.modifiers[-1].flow_settings.surface_distance = 1.5
if not self.show_flows:
obj.display_type = 'WIRE'
# store bounding box min/max for the domain object
obj_bb_minmax(obj, min_co, max_co)
# add the smoke domain object
bpy.ops.mesh.primitive_cube_add()
obj = context.active_object
obj.name = "Smoke Domain"
# give the smoke some room above the flows
obj.location = 0.5 * (max_co + min_co) + Vector((0.0, 0.0, 1.0))
obj.scale = 0.5 * (max_co - min_co) + Vector((1.0, 1.0, 2.0))
# setup smoke domain
bpy.ops.object.modifier_add(type='FLUID')
obj.modifiers[-1].fluid_type = 'DOMAIN'
if self.style == 'FIRE' or self.style == 'BOTH':
obj.modifiers[-1].domain_settings.use_noise = True
# set correct cache file format for smoke
obj.modifiers[-1].domain_settings.cache_data_format = 'UNI'
# Setup material
# Cycles and Eevee
bpy.ops.object.material_slot_add()
mat = bpy.data.materials.new("Smoke Domain Material")
obj.material_slots[0].material = mat
# Make sure we use nodes
mat.use_nodes = True
# Set node variables and clear the default nodes
tree = mat.node_tree
nodes = tree.nodes
links = tree.links
nodes.clear()
# Create shader nodes
# Material output
node_out = nodes.new(type='ShaderNodeOutputMaterial')
node_out.location = grid_location(6, 1)
# Add Principled Volume
node_principled = nodes.new(type='ShaderNodeVolumePrincipled')
node_principled.location = grid_location(4, 1)
links.new(node_principled.outputs["Volume"],
node_out.inputs["Volume"])
node_principled.inputs["Density"].default_value = 5.0
if self.style in {'FIRE', 'BOTH'}:
node_principled.inputs["Blackbody Intensity"].default_value = 1.0
return {'FINISHED'}
class QuickLiquid(Operator):
bl_idname = "object.quick_liquid"
bl_label = "Quick Liquid"
bl_options = {'REGISTER', 'UNDO'}
show_flows: BoolProperty(
name="Render Liquid Objects",
description="Keep the liquid objects visible during rendering",
default=False,
)
def execute(self, context):
if not bpy.app.build_options.fluid:
self.report({'ERROR'}, "Built without Fluid modifier")
return {'CANCELLED'}
fake_context = context.copy()
mesh_objects = [obj for obj in context.selected_objects
if obj.type == 'MESH']
min_co = Vector((100000.0, 100000.0, 100000.0))
max_co = -min_co
if not mesh_objects:
self.report({'ERROR'}, "Select at least one mesh object")
return {'CANCELLED'}
# set shading type to wireframe so that liquid particles are visible
for area in bpy.context.screen.areas:
if area.type == 'VIEW_3D':
for space in area.spaces:
if space.type == 'VIEW_3D':
space.shading.type = 'WIREFRAME'
for obj in mesh_objects:
fake_context["object"] = obj
# make each selected object a liquid flow
bpy.ops.object.modifier_add(fake_context, type='FLUID')
obj.modifiers[-1].fluid_type = 'FLOW'
# set type
obj.modifiers[-1].flow_settings.flow_type = 'LIQUID'
# set flow behavior
obj.modifiers[-1].flow_settings.flow_behavior = 'GEOMETRY'
# use some surface distance for smoke emission
obj.modifiers[-1].flow_settings.surface_distance = 0.0
if not self.show_flows:
obj.display_type = 'WIRE'
# store bounding box min/max for the domain object
obj_bb_minmax(obj, min_co, max_co)
# add the liquid domain object
bpy.ops.mesh.primitive_cube_add()
obj = context.active_object
obj.name = "Liquid Domain"
# give the liquid some room above the flows
obj.location = 0.5 * (max_co + min_co) + Vector((0.0, 0.0, -1.0))
obj.scale = 0.5 * (max_co - min_co) + Vector((1.0, 1.0, 2.0))
# setup liquid domain
bpy.ops.object.modifier_add(type='FLUID')
obj.modifiers[-1].fluid_type = 'DOMAIN'
# set all domain borders to obstacle
obj.modifiers[-1].domain_settings.use_collision_border_front = True
obj.modifiers[-1].domain_settings.use_collision_border_back = True
obj.modifiers[-1].domain_settings.use_collision_border_right = True
obj.modifiers[-1].domain_settings.use_collision_border_left = True
obj.modifiers[-1].domain_settings.use_collision_border_top = True
obj.modifiers[-1].domain_settings.use_collision_border_bottom = True
# set correct cache file format for liquid
obj.modifiers[-1].domain_settings.cache_mesh_format = 'BOBJECT'
# change domain type, will also allocate and show particle system for FLIP
obj.modifiers[-1].domain_settings.domain_type = 'LIQUID'
# make the domain smooth so it renders nicely
bpy.ops.object.shade_smooth()
# create a ray-transparent material for the domain
bpy.ops.object.material_slot_add()
mat = bpy.data.materials.new("Liquid Domain Material")
obj.material_slots[0].material = mat
# Make sure we use nodes
mat.use_nodes = True
# Set node variables and clear the default nodes
tree = mat.node_tree
nodes = tree.nodes
links = tree.links
nodes.clear()
# Create shader nodes
# Material output
node_out = nodes.new(type='ShaderNodeOutputMaterial')
node_out.location = grid_location(6, 1)
# Add Glass
node_glass = nodes.new(type='ShaderNodeBsdfGlass')
node_glass.location = grid_location(4, 1)
links.new(node_glass.outputs["BSDF"], node_out.inputs["Surface"])
node_glass.inputs["IOR"].default_value = 1.33
# Add Absorption
node_absorption = nodes.new(type='ShaderNodeVolumeAbsorption')
node_absorption.location = grid_location(4, 2)
links.new(node_absorption.outputs["Volume"], node_out.inputs["Volume"])
node_absorption.inputs["Color"].default_value = (0.8, 0.9, 1.0, 1.0)
return {'FINISHED'}
classes = (
QuickExplode,
QuickFur,
QuickSmoke,
QuickLiquid,
)
|