"""Blender asset generator for The Turning World (run headless): /Applications/Blender.app/Contents/MacOS/Blender --background \ --python sims/turning-world/make_blender_assets.py Renders, into sims/turning-world/assets/: terra_.png - seven 3D isometric terrain plates, 1536x768, transparent, camera locked to the sim's 2:1 projection so the page's SVG buildings align hero_globe.png - a 3D globe with extruded continents, Moon and satellite, for the page header This is the one place the site's no-dependency rule is deliberately bent (prompter's request: "prioritize coolness over following rules") — the outputs are plain PNGs; the page still loads no external code. """ import bpy import bmesh import math import os OUT = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'assets') os.makedirs(OUT, exist_ok=True) TERRA = { 'britain': ["wwwwwwwwwwww","wwggfggwwwww","wgggggggwwww","wggfggggdgww", "wggggdggggww","wwgggggggdww","wwgdggggggww","wwwggggdggww", "wwgggwwggggw","wwggwwwwggww","wwwwwwwwwwww","wwwwwwwwwwww"], 'levant': ["aaaaaaaaadaa","aadaaaaaaaaa","aaaaadaaaaaa","waaaaaaaadaa", "wwaaadgggaaa","wwaaaggdgaaa","waaaadggaaaa","waaaaaaaaaaa", "wwaaaaadaaaa","waaadaaaaaaa","waaaaaaaadaa","aaaaaaaaaaaa"], 'china': ["ggggffgggggg","ggdggggdgggg","ggggdwwggggg","gdggwwwdgggg", "ggdwwgggdggg","ggwwdgggggfg","gwwggdgdgggg","gwgdgggggdgg", "wwgggdgggggg","wggdggggdggg","ggggggdggggg","gggdgggggggg"], 'mysore': ["gggffggggggg","ggffgggdgggg","gffggdgggggg","ggggggggdggg", "ggdggfgggggg","gggggffgdggg","gdgggffggggg","ggggggggggfg", "ggdggggdgggg","gggggdgggggg","ggfgggggdggg","gggggggggggg"], 'europe': ["ggggffffgggg","ggdggffggggg","gggggggggdgg","gdgggdgggggg", "ggggggggdggg","ggdgdggggggg","gggggggdgggg","ggfggggggggd", "gfgggdgggggg","ggggggggdggg","gdggggdggggg","gggggggggggg"], 'america': ["ffffffgggggw","fffggggdggww","ffgggggggwww","fgdgggdggggw", "ggggggggggww","gfgggdgggwww","ggggggggggww","gdggggdggggw", "gggfgggggwww","ggggggggwwww","gfggdggggwww","ggggggggggww"], 'steppe': ["ssssssssssss","ssssssssssss","ssdsssssssss","ssssssssssss", "sssssssdssss","ssssssssssss","ssssssssssss","sdssssssssss", "ssssssssssss","ssssssssdsss","ssssssssssss","ssssssssssss"], } COLORS = { # sRGB 0-1, matched to the site's light palette but juicier in 3D 'g': (0.55, 0.62, 0.35), 'f': (0.55, 0.62, 0.35), 'a': (0.82, 0.70, 0.46), 's': (0.80, 0.70, 0.48), 'd': (0.76, 0.58, 0.25), 'w': (0.38, 0.53, 0.60), } TREE_GREEN = (0.30, 0.44, 0.24) TRUNK = (0.42, 0.36, 0.28) DARK_COLORS = { 'g': (0.150, 0.185, 0.105), 'f': (0.150, 0.185, 0.105), 'a': (0.260, 0.215, 0.130), 's': (0.250, 0.215, 0.140), 'd': (0.280, 0.205, 0.080), 'w': (0.085, 0.125, 0.160), } DARK_TREE = (0.10, 0.16, 0.09) DARK_TRUNK = (0.16, 0.13, 0.10) LAND = [ # [lon,lat] low-poly coastlines (same data as the page) [[-168,66],[-140,70],[-125,71],[-110,72],[-95,72],[-80,73],[-70,62],[-55,52], [-65,45],[-70,42],[-75,38],[-80,32],[-81,25],[-90,29],[-97,26],[-97,20], [-105,20],[-110,23],[-115,30],[-124,40],[-125,49],[-140,60],[-155,58]], [[-77,8],[-60,10],[-52,4],[-45,-2],[-35,-8],[-39,-18],[-48,-28],[-55,-35], [-62,-40],[-65,-47],[-68,-55],[-72,-50],[-75,-40],[-78,-30],[-81,-15],[-79,-5]], [[-17,15],[-10,30],[0,36],[10,37],[20,32],[32,31],[35,25],[43,11],[51,10], [48,2],[40,-5],[40,-15],[35,-22],[30,-30],[20,-35],[15,-28],[12,-18],[9,-5], [0,5],[-10,5]], [[-10,37],[0,44],[-2,48],[8,54],[8,57],[18,56],[22,60],[28,60],[30,70],[45,68], [60,70],[75,73],[95,77],[115,74],[130,72],[150,70],[170,67],[179,65],[170,60], [158,61],[156,52],[141,53],[135,44],[126,39],[122,31],[115,23],[108,12],[104,2], [99,7],[94,16],[90,22],[85,20],[80,13],[77,7],[73,18],[68,24],[60,25],[57,20], [52,14],[45,13],[43,17],[39,20],[35,29],[27,37],[23,36],[15,38],[5,38]], [[-5,50],[-6,53],[-4,58],[-1,57],[1,52]], [[130,31],[133,34],[137,35],[141,39],[142,43],[139,41],[135,35],[131,32]], [[95,5],[105,0],[115,-3],[118,2],[110,5],[100,6]], [[114,-22],[122,-18],[132,-12],[142,-11],[147,-19],[153,-27],[150,-37],[140,-38], [131,-32],[122,-34],[114,-33],[113,-26]], [[-45,60],[-52,65],[-55,70],[-40,77],[-25,73],[-33,67]], ] def reset_scene(): bpy.ops.wm.read_factory_settings(use_empty=True) sc = bpy.context.scene sc.render.film_transparent = True sc.render.image_settings.file_format = 'PNG' sc.render.image_settings.color_mode = 'RGBA' try: sc.view_settings.view_transform = 'Standard' except Exception: pass # pick whichever EEVEE this Blender ships for eng in ('BLENDER_EEVEE_NEXT', 'BLENDER_EEVEE'): try: sc.render.engine = eng break except TypeError: continue return sc def mat(name, rgb, rough=0.9, metal=0.0): m = bpy.data.materials.get(name) if m: return m m = bpy.data.materials.new(name) m.use_nodes = True bsdf = m.node_tree.nodes['Principled BSDF'] bsdf.inputs['Base Color'].default_value = (*rgb, 1) bsdf.inputs['Roughness'].default_value = rough bsdf.inputs['Metallic'].default_value = metal return m def add_cube(x, y, z, sx, sy, sz, material): bpy.ops.mesh.primitive_cube_add(location=(x, y, z)) ob = bpy.context.object ob.scale = (sx, sy, sz) ob.data.materials.append(material) # soft bevel so edges catch light bev = ob.modifiers.new('bev', 'BEVEL') bev.width = 0.04 bev.segments = 2 return ob def lights(): bpy.ops.object.light_add(type='SUN', location=(0, 0, 10)) sun = bpy.context.object sun.data.energy = 1.7 sun.data.angle = math.radians(12) # soft shadows # light from the upper-left of the final image (matches SVG shading) sun.rotation_euler = (math.radians(50), math.radians(-18), math.radians(-30)) bpy.ops.object.light_add(type='SUN', location=(0, 0, 10)) fill = bpy.context.object fill.data.energy = 0.45 fill.data.angle = math.radians(60) fill.rotation_euler = (math.radians(30), math.radians(25), math.radians(140)) world = bpy.data.worlds.new('w') bpy.context.scene.world = world world.use_nodes = True world.node_tree.nodes['Background'].inputs['Strength'].default_value = 0.32 world.node_tree.nodes['Background'].inputs['Color'].default_value = (1, 1, 1, 1) def iso_camera(grid=12): """Orthographic camera locked to the page's 2:1 isometric projection. Plan-space u = x - y spans ±grid ⇒ camera width 2·grid/√2; 2:1 follows from the 60° pitch.""" cx, cy = (grid - 1) / 2.0, -(grid - 1) / 2.0 bpy.ops.object.camera_add() cam = bpy.context.object cam.data.type = 'ORTHO' cam.data.ortho_scale = (2 * grid) / math.sqrt(2) # exact horizontal fit cam.rotation_euler = (math.radians(60), 0, math.radians(45)) d = 40 cam.location = (cx + d * math.sin(math.radians(45)) * math.sin(math.radians(60)), cy - d * math.cos(math.radians(45)) * math.sin(math.radians(60)), d * math.cos(math.radians(60))) bpy.context.scene.camera = cam # ---------------- landmark modelling helpers (all primitives) ---------------- def _box(x, y, z, sx, sy, sz, m): bpy.ops.mesh.primitive_cube_add(location=(x, y, z)) ob = bpy.context.object ob.scale = (sx, sy, sz) ob.data.materials.append(m) return ob def _cyl(x, y, z, r, depth, m, rt=None, vertices=24): if rt is None: bpy.ops.mesh.primitive_cylinder_add(radius=r, depth=depth, location=(x, y, z), vertices=vertices) else: bpy.ops.mesh.primitive_cone_add(radius1=r, radius2=rt, depth=depth, location=(x, y, z), vertices=vertices) ob = bpy.context.object ob.data.materials.append(m) return ob def _dome(x, y, z, r, m, squash=1.0): bpy.ops.mesh.primitive_uv_sphere_add(radius=r, location=(x, y, z), segments=24, ring_count=16) ob = bpy.context.object ob.scale = (1, 1, squash) bpy.ops.object.shade_smooth() ob.data.materials.append(m) return ob def _cone(x, y, z, r, depth, m, vertices=24): bpy.ops.mesh.primitive_cone_add(radius1=r, depth=depth, location=(x, y, z), vertices=vertices) ob = bpy.context.object ob.data.materials.append(m) return ob WHITE = (0.93, 0.90, 0.84) STONE = (0.78, 0.72, 0.60) GREYST = (0.62, 0.60, 0.55) BRONZE = (0.55, 0.30, 0.20) VERDI = (0.35, 0.58, 0.50) DOMET = (0.55, 0.68, 0.62) def lm_taj(cx, cy): m = mat('lm_white', WHITE, rough=.6) _box(cx, cy, 0.14, 0.75, 0.75, 0.06, m) # plinth _box(cx, cy, 0.42, 0.42, 0.42, 0.26, m) # hall _dome(cx, cy, 0.86, 0.30, m, squash=1.15) # onion dome _cone(cx, cy, 1.24, 0.045, 0.16, mat('lm_gold', (0.8, 0.62, 0.25), rough=.4)) for dx, dy in ((-.34, -.34), (-.34, .34), (.34, -.34), (.34, .34)): _cyl(cx + dx, cy + dy, 0.32, 0.045, 0.28, m) # chhatri posts _dome(cx + dx, cy + dy, 0.50, 0.09, m) for dx, dy in ((-.72, -.72), (-.72, .72), (.72, -.72), (.72, .72)): _cyl(cx + dx, cy + dy, 0.28, 0.05, 0.55, m, rt=0.035) # minarets _dome(cx + dx, cy + dy, 0.585, 0.065, m) def lm_bigben(cx, cy): m = mat('lm_stone', STONE, rough=.8) _box(cx, cy, 0.55, 0.14, 0.14, 0.55, m) # shaft _box(cx, cy, 1.18, 0.17, 0.17, 0.10, m) # clock stage f = mat('lm_face', (0.95, 0.94, 0.88), rough=.4) for dx, dy, rx, ry in ((0.171, 0, 0.01, 0.09), (-0.171, 0, 0.01, 0.09), (0, 0.171, 0.09, 0.01), (0, -0.171, 0.09, 0.01)): _box(cx + dx, cy + dy, 1.18, rx, ry, 0.09, f) # clock faces _cone(cx, cy, 1.42, 0.13, 0.28, m) # spire _cone(cx, cy, 1.60, 0.02, 0.10, mat('lm_gold', (0.8, 0.62, 0.25), rough=.4)) def lm_notredame(cx, cy): m = mat('lm_grey', GREYST, rough=.85) _box(cx - 0.22, cy - 0.28, 0.42, 0.14, 0.14, 0.42, m) # west towers _box(cx - 0.22, cy + 0.28, 0.42, 0.14, 0.14, 0.42, m) _box(cx + 0.12, cy, 0.26, 0.42, 0.20, 0.26, m) # nave bpy.ops.mesh.primitive_cube_add(location=(cx + 0.12, cy, 0.60)) roofob = bpy.context.object roofob.scale = (0.42, 0.14, 0.10) roofob.rotation_euler = (math.radians(45), 0, 0) roofob.data.materials.append(m) _cone(cx + 0.05, cy, 0.86, 0.035, 0.34, m) # fleche _cyl(cx - 0.365, cy, 0.42, 0.055, 0.012, mat('lm_gold', (0.8, 0.62, 0.25), rough=.4), vertices=20) # rose window def lm_mosque(cx, cy): m = mat('lm_ivory', (0.88, 0.83, 0.70), rough=.7) _box(cx, cy, 0.16, 0.55, 0.4, 0.16, m) # prayer hall _dome(cx, cy, 0.40, 0.22, mat('lm_dome', DOMET, rough=.5), squash=1.0) _cyl(cx + 0.62, cy - 0.25, 0.5, 0.045, 1.0, m) # minaret _dome(cx + 0.62, cy - 0.25, 1.03, 0.07, mat('lm_dome', DOMET, rough=.5)) def lm_pagoda(cx, cy): m = mat('lm_bronze', BRONZE, rough=.75) z = 0.0 for i, (r, h) in enumerate([(0.30, 0.18), (0.26, 0.16), (0.22, 0.15), (0.18, 0.14), (0.14, 0.13)]): _cyl(cx, cy, z + h / 2, r * 0.72, h, m, vertices=8) _cone(cx, cy, z + h + 0.025, r, 0.09, m, vertices=8) z += h + 0.05 _cone(cx, cy, z + 0.10, 0.02, 0.22, mat('lm_gold', (0.8, 0.62, 0.25), rough=.4)) def lm_liberty(cx, cy): p = mat('lm_ped', STONE, rough=.85) v = mat('lm_verdi', VERDI, rough=.7) _box(cx, cy, 0.22, 0.22, 0.22, 0.22, p) # pedestal _cyl(cx, cy, 0.72, 0.13, 0.56, v, rt=0.07) # robe _dome(cx, cy, 1.04, 0.07, v) # head for k in range(5): a = math.radians(-60 + k * 30) _cone(cx + 0.09 * math.cos(a), cy, 1.13 + 0.05 * math.sin(a) * 0, 0.012, 0.09, v, vertices=6) # crown arm = _cyl(cx + 0.10, cy + 0.08, 1.22, 0.025, 0.42, v) arm.rotation_euler = (math.radians(18), math.radians(-12), 0) _cone(cx + 0.16, cy + 0.13, 1.47, 0.05, 0.10, mat('lm_flame', (0.85, 0.55, 0.20), rough=.4)) # torch def lm_yurts(cx, cy): m = mat('lm_felt', (0.85, 0.80, 0.70), rough=.9) for dx, dy, r in ((0, 0, 0.28), (0.75, 0.55, 0.20)): _cyl(cx + dx, cy + dy, 0.10, r, 0.20, m) _dome(cx + dx, cy + dy, 0.20, r, m, squash=0.62) LANDMARKS = { 'britain': (lm_bigben, 2.85, 5.25), 'europe': (lm_notredame,2.95, 6.15), 'china': (lm_pagoda, 2.95, 7.75), 'levant': (lm_mosque, 3.75, 7.85), 'mysore': (lm_taj, 3.55, 7.75), 'america': (lm_liberty, 7.95, 2.95), 'steppe': (lm_yurts, 3.75, 6.85), } def render_region(key, rows, colors=COLORS, tree=TREE_GREEN, trunk=TRUNK, suffix=''): sc = reset_scene() sc.render.resolution_x = 1536 sc.render.resolution_y = 768 lights() iso_camera(12) m_by = {c: mat('m_' + c + suffix, colors[c]) for c in colors} m_by['w'].node_tree.nodes['Principled BSDF'].inputs['Roughness'].default_value = 0.15 m_tree = mat('m_tree' + suffix, tree) m_trunk = mat('m_trunk' + suffix, trunk) for ty in range(12): for tx in range(12): ch = rows[ty][tx] h = 0.10 if ch != 'w' else 0.02 add_cube(tx, -ty, h / 2, 0.5, 0.5, h / 2, m_by[ch]) if ch == 'f': for dx, dy, s in ((0, 0, 1.0), (-0.28, 0.22, 0.7)): bpy.ops.mesh.primitive_cylinder_add( radius=0.035 * s, depth=0.16 * s, location=(tx + dx, -ty + dy, 0.09 + 0.08 * s)) tr = bpy.context.object tr.data.materials.append(m_trunk) bpy.ops.mesh.primitive_cone_add( radius1=0.16 * s, depth=0.34 * s, location=(tx + dx, -ty + dy, 0.17 + 0.17 * s)) co = bpy.context.object co.data.materials.append(m_tree) if key in LANDMARKS: fn, lx, ly = LANDMARKS[key] fn(lx, -ly) sc.render.filepath = os.path.join(OUT, f'terra_{key}{suffix}.png') bpy.ops.render.render(write_still=True) print('rendered', key) def lonlat_inside(lon, lat): for poly in LAND: inside = False n = len(poly) for k in range(n): x1, y1 = poly[k] x2, y2 = poly[(k + 1) % n] if (y1 > lat) != (y2 > lat): xin = x1 + (lat - y1) / (y2 - y1) * (x2 - x1) if xin > lon: inside = not inside if inside: return True return False def render_hero(): import mathutils sc = reset_scene() sc.render.resolution_x = 1760 sc.render.resolution_y = 990 # ocean bpy.ops.mesh.primitive_uv_sphere_add(segments=128, ring_count=64, radius=1.0) ocean = bpy.context.object bpy.ops.object.shade_smooth() ocean.data.materials.append(mat('sea', (0.42, 0.56, 0.62), rough=0.3)) # land: dense sphere, keep only faces whose centre is on land, shell it bpy.ops.mesh.primitive_uv_sphere_add(segments=256, ring_count=128, radius=1.008) land = bpy.context.object me = land.data bm = bmesh.new() bm.from_mesh(me) doomed = [] for f in bm.faces: c = f.calc_center_median() lat = math.degrees(math.asin(max(-1, min(1, c.z / c.length)))) lon = math.degrees(math.atan2(c.y, c.x)) if not lonlat_inside(lon, lat): doomed.append(f) bmesh.ops.delete(bm, geom=doomed, context='FACES') bm.to_mesh(me) bm.free() land.data.materials.append(mat('landm', (0.76, 0.68, 0.50), rough=0.85)) sol = land.modifiers.new('sol', 'SOLIDIFY') sol.thickness = 0.02 sol.offset = 1 bpy.ops.object.shade_smooth() # equator hint bpy.ops.mesh.primitive_torus_add(major_radius=1.004, minor_radius=0.0022) bpy.context.object.data.materials.append(mat('ring', (0.62, 0.58, 0.50), rough=.6)) # Moon bpy.ops.mesh.primitive_uv_sphere_add(radius=0.13, location=(1.15, -1.55, 1.05)) bpy.ops.object.shade_smooth() bpy.context.object.data.materials.append(mat('moon', (0.70, 0.68, 0.63), rough=.95)) # satellite orbit ring + satellite (accent colour) eul = mathutils.Euler((math.radians(62), 0, math.radians(24))) bpy.ops.mesh.primitive_torus_add(major_radius=1.42, minor_radius=0.0045, rotation=eul[:]) bpy.context.object.data.materials.append(mat('orb', (0.72, 0.34, 0.20), rough=.5)) pt = mathutils.Vector((1.42 * math.cos(0.9), 1.42 * math.sin(0.9), 0)) pt.rotate(eul) bpy.ops.mesh.primitive_uv_sphere_add(radius=0.035, location=pt[:]) bpy.context.object.data.materials.append(mat('sat', (0.72, 0.34, 0.20))) # camera aimed with a tracking constraint (Europe/Levant hemisphere) bpy.ops.object.empty_add(location=(0, 0, 0.05)) target = bpy.context.object bpy.ops.object.camera_add(location=(5.3, 3.9, 2.7)) cam = bpy.context.object cam.data.lens = 50 tc = cam.constraints.new('TRACK_TO') tc.target = target tc.track_axis = 'TRACK_NEGATIVE_Z' tc.up_axis = 'UP_Y' bpy.context.scene.camera = cam lights() sc.render.filepath = os.path.join(OUT, 'hero_globe.png') bpy.ops.render.render(write_still=True) print('rendered hero') for key, rows in TERRA.items(): render_region(key, rows) render_region(key, rows, DARK_COLORS, DARK_TREE, DARK_TRUNK, '_dark') render_hero() print('all assets done ->', OUT)