Blender Scripting py - Scripts Tutorials Examples Hacks

import bpy
import math

# Clear existing objects
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete()

bpy.ops.object.select_all(action='DESELECT')
for obj in bpy.data.objects:
    bpy.data.objects.remove(obj, do_unlink=True)

bpy.ops.object.text_add(align='WORLD', location=(0, -0.5, 0))
text_obj = bpy.context.object
text_obj.name = "CloudText"
text_obj.data.body = "CLOUD"
text_obj.data.align_x = 'CENTER'
text_obj.data.extrude = 0.03
text_obj.data.bevel_depth = 0.14
text_obj.data.bevel_resolution = 4  # Higher for smoother bevels
text_obj.data.space_character = 1.5  # Letter spacing

# Convert text to mesh
bpy.ops.object.convert(target='MESH')

# Add solidify modifier to give thickness
solidify = text_obj.modifiers.new(name="Solidify", type='SOLIDIFY')
solidify.thickness = 0.0
solidify.offset = 0
bpy.ops.object.modifier_apply(modifier="Solidify")

# Add subdivision modifier
subdiv = text_obj.modifiers.new(name="Subdivision", type='SUBSURF')
subdiv.levels = 3
subdiv.render_levels = 3
bpy.ops.object.modifier_apply(modifier="Subdivision")

# Create empty volume (updated for Blender 4.1)
bpy.ops.object.volume_add(align='WORLD', location=(0, 0, 0))
volume_obj = bpy.context.object
volume_obj.name = "CLOUD_VOLUME"

# Add Mesh to Volume modifier to the volume object
mesh_to_volume = volume_obj.modifiers.new(name="MeshToVolume", type='MESH_TO_VOLUME')
mesh_to_volume.object = text_obj
mesh_to_volume.density = 22.0
mesh_to_volume.voxel_size = 0.08
mesh_to_volume.interior_band_width = 0.2
mesh_to_volume.resolution_mode = 'VOXEL_AMOUNT'
mesh_to_volume.voxel_amount = 128

# Hide the original text mesh
text_obj.hide_set(True)
text_obj.hide_render = True

# Add volume displace modifier
displace = volume_obj.modifiers.new(name="VolumeDisplace", type='VOLUME_DISPLACE')
displace.texture = bpy.data.textures.new(name="CloudNoise", type='CLOUDS')
displace.texture.noise_scale = 0.2
displace.strength = 0.5

# Set volume material
mat = bpy.data.materials.new(name="CloudMaterial")
mat.use_nodes = True
nodes = mat.node_tree.nodes
links = mat.node_tree.links

# Clear default nodes
for node in nodes:
    nodes.remove(node)

# Create volume scatter node
volume_scatter = nodes.new(type='ShaderNodeVolumeScatter')
volume_scatter.inputs['Density'].default_value = 5
volume_scatter.inputs['Anisotropy'].default_value = 0

# Create principled volume node (updated for Blender 4.1)
principled_volume = nodes.new(type='ShaderNodeVolumePrincipled')
principled_volume.inputs['Density'].default_value = 2
principled_volume.inputs['Anisotropy'].default_value = 0
principled_volume.inputs['Color'].default_value = (1, 1, 1, 1)

# Create material output node
output = nodes.new(type='ShaderNodeOutputMaterial')

# Link nodes
links.new(principled_volume.outputs['Volume'], output.inputs['Volume'])

# Assign material to volume object
if volume_obj.data.materials:
    volume_obj.data.materials[0] = mat
else:
    volume_obj.data.materials.append(mat)

# Add lighting
bpy.ops.object.light_add(type='SUN', location=(10, 10, 20))
sun = bpy.context.object
sun.data.energy = 5
sun.data.angle = math.radians(5)

bpy.ops.object.light_add(type='SUN', location=(-10, -10, 20))
sun2 = bpy.context.object
sun2.data.energy = 3
sun2.data.angle = math.radians(5)
sun2.data.color = (0.8, 0.9, 1.0)

# Add camera
bpy.ops.object.camera_add(location=(0, 0, 7))
camera = bpy.context.object
bpy.context.scene.camera = camera

# Add world background
world = bpy.context.scene.world
world.use_nodes = True
bg = world.node_tree.nodes['Background']
#bg.inputs['Strength'].default_value = 1.5
#bg.inputs['Color'].default_value = (0.7, 0.8, 1.0, 1.0)

# Set render settings
bpy.context.scene.render.engine = 'CYCLES'
bpy.context.scene.cycles.samples = 128
bpy.context.scene.cycles.volume_bounces = 8

Fluffy Clouds