sphere2.py - BlenderでICO球、平面、カメラ、ライトを設定する

sphere2.py

# 平面と球を置く
import bpy
import math

# Unsplash: at least 2500x2000
# https://help.unsplash.com/en/articles/3878503-submission-guidelines-for-institiutions
bpy.context.scene.render.resolution_x = 3000
bpy.context.scene.render.resolution_y = 2000

# Delete all objects
for item in bpy.data.meshes:
    bpy.data.meshes.remove(item)
for item in bpy.data.materials:
    bpy.data.materials.remove(item)
for item in bpy.data.objects:
    bpy.data.objects.remove(item)

# Plane
bpy.ops.mesh.primitive_plane_add(
        size=2,
        enter_editmode=False,
        align='WORLD',
        location=(0, 0, 0),
        scale=(1, 1, 1))
bpy.ops.transform.resize(value=(100, 100, 100),
        orient_type='GLOBAL',
        orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)),
        orient_matrix_type='GLOBAL',
        mirror=False,
        use_proportional_edit=False,
        proportional_edit_falloff='SMOOTH',
        proportional_size=1,
        use_proportional_connected=False,
        use_proportional_projected=False)

# Material for plane
# cf. https://zenn.dev/hotcocoa/articles/5c5ab06c40862b
material = bpy.data.materials.new("material for plane")
material.use_nodes = True
bsdf = material.node_tree.nodes["Principled BSDF"]
R = 0.284
G = 0.760
B = 0.646
A = 1
bsdf.inputs[0].default_value = (R, G, B, A)
bsdf.inputs[6].default_value = 0 # metalic
bsdf.inputs[9].default_value = 0.03 # 粗さ
bpy.context.object.data.materials.append(material)

# Camera
bpy.ops.object.camera_add(enter_editmode=False,
        align='VIEW',
        location=(0, -6, 6),
        rotation=(1, 0, 0),
        scale=(1, 1, 1))

# Icosphere
bpy.ops.mesh.primitive_ico_sphere_add(
        enter_editmode=False,
        align='WORLD',
        location=(0, 0, 2.5),
        subdivisions=4,
        radius=1,
        scale=(1, 1, 1))
bpy.ops.object.shade_smooth()

# Material for icosphere
material = bpy.data.materials.new("material for icosphere")
material.use_nodes = True
bsdf = material.node_tree.nodes["Principled BSDF"]
R = 0.106
G = 0.475
B = 0.760
A = 1
bsdf.inputs[0].default_value = (R, G, B, A)
bsdf.inputs[6].default_value = 0.5 # metalic
bpy.context.object.data.materials.append(material)

# light
bpy.ops.object.light_add(
        type='SPOT',
        radius=1,
        align='WORLD',
        location=(0, 0, 10),
        scale=(1, 1, 1))
bpy.context.object.data.energy = 1000
bpy.context.object.data.spot_size = 1.07163