"""Family SUV — clean, deterministic Blender 5.2 build. Run with blender -b --python this.py. Authoring axes: X left, -Y front, Z up; glTF converts to X left, Y up, Z front. CC0 photographic sources: Poly Haven metal_plate, rubberized_track, fabric_leather_02. """ import bpy, bmesh, math, os, json, struct, urllib.request, sys, time from mathutils import Vector from math import sin,cos,pi,sqrt ROOT=os.path.dirname(os.path.abspath(__file__)) os.makedirs(ROOT+'/textures',exist_ok=True) bpy.ops.wm.read_factory_settings(use_empty=True) S=bpy.context.scene;S.unit_settings.system='METRIC';S.render.engine='CYCLES' S.cycles.samples=24;S.cycles.use_denoising=True;S.cycles.preview_samples=8 prefs=bpy.context.preferences.addons['cycles'].preferences prefs.compute_device_type='OPTIX';prefs.get_devices() for d in prefs.devices:d.use=d.type=='OPTIX' S.cycles.device='GPU';S.render.image_settings.file_format='PNG' S.view_settings.view_transform='AgX' S.world=bpy.data.worlds.new('Daylight');S.world.use_nodes=True S.world.node_tree.nodes['Background'].inputs[0].default_value=(.65,.73,.85,1) S.world.node_tree.nodes['Background'].inputs[1].default_value=.45 GROUPS={'Body':[],'Wheel_FL':[],'Wheel_FR':[],'Wheel_RL':[],'Wheel_RR':[],'SteeringWheel':[]} PAINTS=[('Silver grey',[.62,.63,.64]),('Midnight blue',[.025,.065,.13]),('Forest green',[.055,.12,.085]),('Burgundy',[.21,.032,.048]),('Pearl white',[.88,.87,.81]),('Graphite',[.075,.082,.092])] def active(o): bpy.ops.object.select_all(action='DESELECT');o.select_set(True);bpy.context.view_layer.objects.active=o def mesh(name,v,f,mat,group='Body',smooth=True): me=bpy.data.meshes.new(name);me.from_pydata(v,[],f);me.update();o=bpy.data.objects.new(name,me);bpy.context.collection.objects.link(o) if mat:me.materials.append(mat) for p in me.polygons:p.use_smooth=smooth if group:GROUPS[group].append(o) return o def bevel(o,w=.008,seg=3): active(o);m=o.modifiers.new('Manufactured edge radii','BEVEL');m.width=w;m.segments=seg bpy.ops.object.modifier_apply(modifier=m.name) return o def box(name,loc,dim,mat,bev=.01,group='Body',rot=None): bpy.ops.mesh.primitive_cube_add(size=1,location=loc);o=bpy.context.object;o.name=name;o.dimensions=dim active(o);bpy.ops.object.transform_apply(location=False,rotation=False,scale=True) if rot:o.rotation_euler=rot o.data.materials.append(mat) if bev:bevel(o,bev,3) for p in o.data.polygons:p.use_smooth=True # weighted normals preserve broad flat surfaces m=o.modifiers.new('Face-weighted normals','WEIGHTED_NORMAL');m.keep_sharp=True try:bpy.ops.object.modifier_apply(modifier=m.name) except:pass if group:GROUPS[group].append(o) return o def tube(name,pts,r,mat,group='Body',closed=False,res=3): cu=bpy.data.curves.new(name,'CURVE');cu.dimensions='3D';cu.resolution_u=12;cu.bevel_depth=r;cu.bevel_resolution=res sp=cu.splines.new('POLY');sp.points.add(len(pts)-1) for p,co in zip(sp.points,pts):p.co=(*co,1) sp.use_cyclic_u=closed o=bpy.data.objects.new(name,cu);bpy.context.collection.objects.link(o);o.data.materials.append(mat);active(o);bpy.ops.object.convert(target='MESH') if group:GROUPS[group].append(o) return o def cyl(name,loc,r,depth,mat,group='Body',axis='X',verts=64): bpy.ops.mesh.primitive_cylinder_add(vertices=verts,radius=r,depth=depth,location=loc) o=bpy.context.object;o.name=name if axis=='X':o.rotation_euler[1]=pi/2 elif axis=='Y':o.rotation_euler[0]=pi/2 o.data.materials.append(mat);bevel(o,.002,2) for p in o.data.polygons:p.use_smooth=True if group:GROUPS[group].append(o) return o def matbase(name,color,metal,rough): m=bpy.data.materials.new(name);m.use_nodes=True;p=m.node_tree.nodes.get('Principled BSDF');p.inputs['Base Color'].default_value=(*color,1);p.inputs['Metallic'].default_value=metal;p.inputs['Roughness'].default_value=rough return m,p def image_load(asset,kind): fn=f'{asset}_{kind}_1k.jpg';path=ROOT+'/textures/'+fn if not os.path.exists(path): req=urllib.request.Request(f'https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/{asset}/{fn}',headers={'User-Agent':'Mozilla/5.0'}) with urllib.request.urlopen(req,timeout=90) as r:open(path,'wb').write(r.read()) im=bpy.data.images.load(path,check_existing=True) if kind!='diff':im.colorspace_settings.name='Non-Color' return im # Bake small seamless photographic + node materials on a UV tile. All parts share these sets. def bakedmat(name,col,metal,rough,asset,variation=.15,normal_strength=.12,size=512): m,p=matbase(name,col,metal,rough);n=m.node_tree.nodes;l=m.node_tree.links uv=n.new('ShaderNodeTexCoord');tex={} for kind in ['diff','nor_gl','arm']: t=n.new('ShaderNodeTexImage');t.image=image_load(asset,kind);l.new(uv.outputs['UV'],t.inputs['Vector']);tex[kind]=t bw=n.new('ShaderNodeRGBToBW');l.new(tex['diff'].outputs['Color'],bw.inputs[0]) ramp=n.new('ShaderNodeValToRGB');ramp.color_ramp.elements[0].color=(*(c*(1-variation) for c in col),1);ramp.color_ramp.elements[1].color=(*col,1);l.new(bw.outputs[0],ramp.inputs[0]) noise=n.new('ShaderNodeTexNoise');noise.inputs['Scale'].default_value=180;noise.inputs['Detail'].default_value=2;l.new(uv.outputs['UV'],noise.inputs['Vector']) mix=n.new('ShaderNodeMixRGB');mix.blend_type='MULTIPLY';mix.inputs[0].default_value=.055;l.new(ramp.outputs['Color'],mix.inputs[1]);l.new(noise.outputs['Color'],mix.inputs[2]);l.new(mix.outputs[0],p.inputs['Base Color']) nm=n.new('ShaderNodeNormalMap');nm.inputs['Strength'].default_value=normal_strength;l.new(tex['nor_gl'].outputs['Color'],nm.inputs['Color']);l.new(nm.outputs[0],p.inputs['Normal']) sep=n.new('ShaderNodeSeparateColor');l.new(tex['arm'].outputs['Color'],sep.inputs[0]);mr=n.new('ShaderNodeMapRange');mr.inputs['To Min'].default_value=max(.03,rough-.06);mr.inputs['To Max'].default_value=min(1,rough+.06);l.new(sep.outputs['Green'],mr.inputs['Value']);l.new(mr.outputs[0],p.inputs['Roughness']) bpy.ops.mesh.primitive_plane_add(size=1);o=bpy.context.object;o.name='BakeTile';o.data.materials.append(m);active(o) out=n.get('Material Output');target=n.new('ShaderNodeTexImage');em=n.new('ShaderNodeEmission') def bake(kind,sz,socket=None): im=bpy.data.images.new(name+'_'+kind,width=sz,height=sz,alpha=False) if kind!='BaseColor':im.colorspace_settings.name='Non-Color' target.image=im;n.active=target if kind=='Normal':l.new(p.outputs[0],out.inputs['Surface']);bt='NORMAL' else:l.new(socket,em.inputs[0]);l.new(em.outputs[0],out.inputs['Surface']);bt='EMIT' S.cycles.samples=4;S.render.bake.margin=8;bpy.ops.object.bake(type=bt) im.filepath_raw=ROOT+'/textures/'+name+'_'+kind+'.png';im.file_format='PNG';im.save();return im base=bake('BaseColor',size,mix.outputs[0]);normal=bake('Normal',size) combine=n.new('ShaderNodeCombineColor');combine.inputs[0].default_value=1;l.new(mr.outputs[0],combine.inputs[1]);combine.inputs[2].default_value=metal orm=bake('ORM',min(size,512),combine.outputs[0]);bpy.data.objects.remove(o,do_unlink=True) n.clear();p=n.new('ShaderNodeBsdfPrincipled');out=n.new('ShaderNodeOutputMaterial');l.new(p.outputs[0],out.inputs[0]);nodes={} for k,im in [('BaseColor',base),('Normal',normal),('ORM',orm)]: t=n.new('ShaderNodeTexImage');t.image=im;nodes[k]=t l.new(nodes['BaseColor'].outputs[0],p.inputs['Base Color']);nm=n.new('ShaderNodeNormalMap');l.new(nodes['Normal'].outputs[0],nm.inputs[0 if False else 'Color']);l.new(nm.outputs[0],p.inputs['Normal']) sp=n.new('ShaderNodeSeparateColor');l.new(nodes['ORM'].outputs[0],sp.inputs[0]);l.new(sp.outputs['Green'],p.inputs['Roughness']);l.new(sp.outputs['Blue'],p.inputs['Metallic']) # Exporter's standard AO group socket binds the red ORM channel. ng=bpy.data.node_groups.get('glTF Material Output') if not ng: ng=bpy.data.node_groups.new('glTF Material Output','ShaderNodeTree');ng.interface.new_socket(name='Occlusion',in_out='INPUT',socket_type='NodeSocketFloat') gn=n.new('ShaderNodeGroup');gn.node_tree=ng;l.new(sp.outputs['Red'],gn.inputs['Occlusion']) if name=='Paint':p.inputs['Coat Weight'].default_value=1;p.inputs['Coat Roughness'].default_value=.05 print('BAKED',name,flush=True) return m Paint=bakedmat('Paint',(.96,.96,.96),.52,.27,'metal_plate',.045,.025,1024) Rubber=bakedmat('Rubber',(.027,.030,.032),0,.76,'rubberized_track',.25,.22) Trim=bakedmat('Trim',(.052,.059,.064),.08,.48,'rubberized_track',.14,.10) Alloy=bakedmat('Alloy',(.56,.59,.62),.95,.24,'metal_plate',.10,.06) Interior=bakedmat('Interior',(.066,.058,.048),0,.63,'fabric_leather_02',.20,.30) Glass,gp=matbase('Glass',(.095,.145,.17),.12,.12);gp.inputs['Alpha'].default_value=.31 Glass.surface_render_method='BLENDED' if 'BLENDED' in [x.identifier for x in Glass.bl_rna.properties['surface_render_method'].enum_items] else 'DITHERED' Glass.use_transparency_overlap=False # Lamps are one UV palette, baked with Cycles; three strips white/red/amber. Lamps,lp=matbase('Lamps',(1,.8,.5),.15,.19) n=Lamps.node_tree.nodes;l=Lamps.node_tree.links uv=n.new('ShaderNodeTexCoord');se=n.new('ShaderNodeSeparateXYZ');l.new(uv.outputs['UV'],se.inputs[0]);ra=n.new('ShaderNodeValToRGB');ra.color_ramp.interpolation='CONSTANT' ra.color_ramp.elements.remove(ra.color_ramp.elements[1]);ra.color_ramp.elements[0].color=(1,.83,.62,1) ra.color_ramp.elements.new(.333).color=(.65,.008,.012,1);ra.color_ramp.elements.new(.666).color=(1,.24,.008,1);l.new(se.outputs['X'],ra.inputs[0]) em=n.new('ShaderNodeEmission');l.new(ra.outputs[0],em.inputs[0]);l.new(em.outputs[0],n.get('Material Output').inputs[0]) bpy.ops.mesh.primitive_plane_add();bo=bpy.context.object;bo.data.materials.append(Lamps) li=bpy.data.images.new('Lamps_BaseColor',256,256,alpha=False);tn=n.new('ShaderNodeTexImage');tn.image=li;n.active=tn;bpy.ops.object.bake(type='EMIT');li.filepath_raw=ROOT+'/textures/Lamps_BaseColor.png';li.file_format='PNG';li.save();bpy.data.objects.remove(bo,do_unlink=True) l.new(lp.outputs[0],n.get('Material Output').inputs[0]);l.new(tn.outputs[0],lp.inputs['Base Color']);l.new(tn.outputs[0],lp.inputs['Emission Color']);lp.inputs['Emission Strength'].default_value=.7 # Palette UV tag is applied after all modifiers. def lamp_tag(o,kind):o['lamp_u']={'white':.16,'red':.5,'amber':.84}[kind];return o # Width / beltline functions form the continuous body, with true open wheel arches. def width(y): return .885-.085*max(0,(abs(y)-1.65)/.70)**1.4 def belt(y):return 1.09+.015*y-.095*max(0,(-y-1.3)/1.05) def lower(y): z=.30 for ay in [-1.375,1.375]: d=abs(y-ay) if d<.438:z=max(z,.375+sqrt(.438**2-d*d)) return z N=190 for sign in [-1,1]: v=[];f=[] for i in range(N+1): y=-2.29+4.58*i/N;lo=lower(y);hi=belt(y) for j in range(11): t=j/10;z=lo+(hi-lo)*t x=width(y)-.026*(1-t)+.025*sin(pi*t)-.008*math.exp(-((t-.76)/.09)**2) v.append((sign*x,y,z)) for i in range(N): for j in range(10):a=i*11+j;f.append((a,a+1,a+12,a+11) if sign==1 else (a+11,a+12,a+1,a)) o=mesh('Sculpted flank',v,f,Paint);sol=o.modifiers.new('Hemmed panel thickness','SOLIDIFY');sol.thickness=.012;active(o);bpy.ops.object.modifier_apply(modifier=sol.name) # wheel arches: shaped black cladding band follows physical cut edge for ay in [-1.375,1.375]: v=[];f=[] for k in range(81): a=pi*k/80 for r in [.440,.486]: y=ay-r*cos(a);z=.375+r*sin(a);v.append((sign*(width(y)+.013),y,z)) for k in range(80):a=2*k;f.append((a,a+1,a+3,a+2)) arch=mesh('Textured wheel arch moulding',v,f,Trim);sol=arch.modifiers.new('Moulded lip','SOLIDIFY');sol.thickness=.022;active(arch);bpy.ops.object.modifier_apply(modifier=sol.name);bevel(arch,.006,2) for dy in [-1,1]:box('Arch foot',(sign*.874,ay+dy*.464,.333),(.031,.066,.12),Trim,.018) # recessed wheel well, black inner curved liner pts=[(sign*.80,ay-.444*cos(pi*k/64),.375+.444*sin(pi*k/64)) for k in range(65)] tube('Inner wheel-well return',pts,.025,Rubber,res=2) box('Rocker moulding',(sign*.858,0,.305),(.085,1.80,.15),Trim,.035) tube('Rocker bright line',[(sign*.901,-.89,.382),(sign*.910,0,.387),(sign*.899,.88,.386)],.009,Alloy,res=2) # door panel shutlines are dark recessed seams, shaped around shoulder for yy in [-.77,.35,1.26]: pts=[] for k in range(25): z=.36+.72*k/24;y=yy+.012*sin(k*pi/24) if z1:tube('Door vertical shutline',pts,.0028,Rubber,res=2) # two handles, recessed pockets and painted pull for yy in [.14,1.10]: box('Handle shadow pocket',(sign*.892,yy,.971),(.016,.224,.046),Rubber,.02) box('Painted pull handle',(sign*.909,yy-.005,.978),(.032,.179,.031),Paint,.014) box('Handle key cap',(sign*.926,yy+.067,.978),(.005,.018,.019),Alloy,.005) # front fender decorative seam and side indicator tube('Fender shoulder trim',[(sign*.893,-1.04,1.022),(sign*.898,-.87,1.035)],.006,Alloy,res=2) # fuel door right rear quarter if sign==-1: pts=[(sign*(width(1.88)+.009),1.88+.105*cos(2*pi*k/64),.97+.075*sin(2*pi*k/64)) for k in range(64)] tube('Fuel filler door seam',pts,.0027,Rubber,closed=True,res=2) # Gently crowned hood, roof and tail deck. def crown(name,y0,y1,z0,z1,w0,w1,bulge,mat,rows=32,cols=32): v=[];f=[] for i in range(rows+1): t=i/rows;y=y0+(y1-y0)*t;w=w0+(w1-w0)*t;z=z0+(z1-z0)*t+.018*sin(pi*t) for j in range(cols+1):u=-1+2*j/cols;v.append((w*u,y,z+bulge*(1-u*u))) for i in range(rows): for j in range(cols):a=i*(cols+1)+j;f.append((a,a+1,a+cols+2,a+cols+1)) o=mesh(name,v,f,mat);return o crown('Bonnet',-2.27,-.66,1.003,1.105,.798,.866,.035,Paint) for sign in [-1,1]: tube('Bonnet shutline',[(sign*(.69+.07*k/32),-2.19+1.50*k/32,1.02+.095*k/32+.018*sin(pi*k/32)) for k in range(33)],.0025,Rubber,res=2) tube('Bonnet pressed ridge',[(sign*(.55+.065*k/32),-2.17+1.43*k/32,1.039+.090*k/32+.018*sin(pi*k/32)) for k in range(33)],.004,Paint,res=2) crown('Roof outer skin',-.01,1.53,1.578,1.566,.729,.73,.026,Paint,48,32) crown('Tailgate shoulder',1.99,2.27,1.105,1.09,.844,.799,.025,Paint,8,24) # Glass with lightly bowed surfaces and continuous black seals / metallic surrounds. def window_surface(name,points,mat=Glass,border=True): # Quad grid bilinear with subtle convexity, retaining original corner shape. if len(points)==4: v=[];f=[];n=12 for i in range(n+1): u=i/n for j in range(n+1): t=j/n;p=Vector(points[0])*(1-u)*(1-t)+Vector(points[1])*u*(1-t)+Vector(points[2])*u*t+Vector(points[3])*(1-u)*t if abs(p.x)>.6:p.x+=math.copysign(.004*sin(pi*u)*sin(pi*t),p.x) v.append(tuple(p)) for i in range(n): for j in range(n):a=i*(n+1)+j;f.append((a,a+1,a+n+2,a+n+1)) o=mesh(name,v,f,mat) else:o=mesh(name,points,[tuple(range(len(points)))],mat) if border:tube(name+' rubber seal',points,.014,Rubber,closed=True,res=3) return o wind=[(-.817,-.681,1.124),(.817,-.681,1.124),(.711,.004,1.557),(-.711,.004,1.557)] window_surface('Laminated windscreen',wind) rear=[(-.73,1.53,1.553),(.73,1.53,1.553),(.836,2.074,1.121),(-.836,2.074,1.121)] window_surface('Tailgate glass',rear) def sidept(sign,y,z):return (sign*(.866-(z-1.12)*.329),y,z) for sign in [-1,1]: for nam,coords in [('Front door glass',[(-.604,1.134),(.337,1.14),(.335,1.553),(.035,1.55)]),('Rear door glass',[(.414,1.14),(1.22,1.151),(1.15,1.545),(.414,1.55)]),('Quarter glass',[(1.30,1.153),(1.938,1.157),(1.61,1.466),(1.239,1.536)])]: pts=[sidept(sign,y,z) for y,z in coords];window_surface(nam,pts) # broad painted A / D pillars, black B and C pillars for name,coords,mat in [ ('A pillar',[(-.696,1.106),(-.597,1.128),(.042,1.559),(-.015,1.592)],Paint), ('B pillar',[(.341,1.13),(.413,1.13),(.413,1.56),(.342,1.56)],Trim), ('C pillar',[(1.221,1.14),(1.3,1.14),(1.24,1.55),(1.153,1.55)],Trim), ('D pillar',[(1.94,1.14),(2.10,1.12),(1.58,1.57),(1.48,1.572)],Paint)]: o=window_surface(name,[sidept(sign,y,z) for y,z in coords],mat,False);sol=o.modifiers.new('Pillar thickness','SOLIDIFY');sol.thickness=.025;active(o);bpy.ops.object.modifier_apply(modifier=sol.name);bevel(o,.006,2) # upper and lower bright window perimeter perimeter=[(-.659,1.116),(-.34,1.36),(.00,1.578),(.5,1.58),(1.20,1.571),(1.58,1.508),(1.99,1.164),(1.94,1.13),(.5,1.118)] tube('Continuous satin window surround',[sidept(sign,y,z) for y,z in perimeter],.009,Alloy,closed=True,res=3) # roof rails, mounts are seated on roof for yy in [.18,1.36]:box('Roof rail foot',(sign*.65,yy,1.62),(.068,.16,.056),Trim,.025) tube('Raised roof rail',[(sign*.65,.08,1.61),(sign*.65,.16,1.658),(sign*.65,.35,1.665),(sign*.65,1.24,1.665),(sign*.65,1.43,1.64),(sign*.65,1.48,1.59)],.015,Alloy,res=4) # mirror mounted to lower A pillar; overall width remains 1.88m tube('Mirror pedestal',[(sign*.829,-.53,1.14),(sign*.887,-.55,1.158)],.028,Trim,res=3) box('Mirror housing',(sign*.889,-.569,1.194),(.102,.208,.114),Paint,.039) box('Mirror lower housing',(sign*.893,-.558,1.16),(.094,.186,.042),Trim,.02) box('Mirror reflective insert',(sign*.891,-.469,1.196),(.078,.008,.075),Alloy,.023) o=box('Mirror turn signal',(sign*.941,-.588,1.19),(.004,.110,.009),Lamps,.003);lamp_tag(o,'amber') # spoiler and shark-fin antenna box('Roof rear spoiler',(0,1.574,1.565),(1.48,.205,.062),Paint,.027) box('Spoiler underside',(0,1.646,1.531),(1.33,.067,.023),Trim,.012) o=box('High mounted stop lamp',(0,1.683,1.537),(.50,.009,.012),Lamps,.004);lamp_tag(o,'red') fin=mesh('Shark fin antenna',[(-.025,1.18,1.59),(.025,1.18,1.59),(.019,1.36,1.589),(-.019,1.36,1.589),(0,1.32,1.673)],[(0,1,4),(1,2,4),(2,3,4),(3,0,4),(3,2,1,0)],Trim);bevel(fin,.005,3) # Front and rear fascia built from rounded transverse contour lofts. def fascia(name,front,mat): sign=-1 if front else 1 rings=[(.30,.71,2.19),(.35,.79,2.28),(.45,.835,2.34),(.59,.845,2.342),(.76,.831,2.315),(.94,.817,2.288),(1.012,.788,2.268)] v=[];f=[];nx=40 for z,w,y in rings: for i in range(nx+1):u=-1+2*i/nx;v.append((w*u,sign*(y-.11*abs(u)**3),z)) for j in range(len(rings)-1): for i in range(nx):a=j*(nx+1)+i;f.append((a,a+1,a+nx+2,a+nx+1)) o=mesh(name,v,f,mat);sol=o.modifiers.new('Bumper shell','SOLIDIFY');sol.thickness=.015;active(o);bpy.ops.object.modifier_apply(modifier=sol.name) fascia('Rounded front bumper',True,Paint);fascia('Rounded rear bumper',False,Paint) # black grille and lower apertures are recessed-looking rounded wells with shaped frames box('Main grille dark cavity',(0,-2.297,.872),(1.12,.035,.213),Rubber,.066) for z in [.80,.947]:tube('Grille satin perimeter',[(-.48,-2.319,z),(-.25,-2.331,z-.005),(0,-2.333,z-.007),(.25,-2.331,z-.005),(.48,-2.319,z)],.009,Alloy,res=3) for x in [-.45,-.35,-.25,-.15,-.05,.05,.15,.25,.35,.45]:box('Grille vertical vane',(x,-2.322,.869),(.010,.016,.125),Trim,.004) for z in [.843,.899]:box('Grille floating blade',(0,-2.336,z),(1.005,.020,.012),Alloy,.005) box('Lower intake centre',(0,-2.349,.521),(1.13,.013,.145),Rubber,.038) for z in [.483,.523,.563]:box('Lower intake louvre',(0,-2.359,z),(1.01,.012,.012),Trim,.005) for sign in [-1,1]: box('Bumper outboard air duct',(sign*.690,-2.297,.57),(.195,.022,.232),Rubber,.047) for z in [.491,.548,.605]:box('Side duct vane',(sign*.685,-2.317,z),(.158,.022,.016),Trim,.006) # Lamp pods have dark reflectors and two optical projector modules. box('Headlight black bezel',(sign*.651,-2.261,.982),(.345,.044,.105),Trim,.026) for x in [.565,.708]: box('Headlight reflector',(sign*x,-2.287,.982),(.112,.018,.062),Alloy,.017) o=box('LED projector',(sign*x,-2.300,.985),(.075,.010,.029),Lamps,.009);lamp_tag(o,'white') o=tube('Headlight DRL',[(sign*.497,-2.295,1.011),(sign*.764,-2.26,1.016),(sign*.804,-2.237,.974)],.008,Lamps,res=3);lamp_tag(o,'white') o=box('Front indicator',(sign*.803,-2.231,.97),(.018,.008,.039),Lamps,.006);lamp_tag(o,'amber') # rear split lamp bars wrap onto the quarter box('Rear lamp bezel',(sign*.657,2.246,1.025),(.337,.034,.118),Trim,.03) o=box('Tail lamp lens',(sign*.657,2.266,1.026),(.305,.016,.086),Lamps,.020);lamp_tag(o,'red') for z in [1.002,1.044]: o=tube('Rear LED signature',[(sign*.503,2.279,z),(sign*.766,2.255,z),(sign*.837,2.145,z)],.008,Lamps,res=3);lamp_tag(o,'red') o=box('Rear indicator',(sign*.71,2.283,1.017),(.155,.005,.012),Lamps,.004);lamp_tag(o,'amber') # Parking sensors are body coloured disks for xx in [.33,.75]:cyl('Flush parking sensor',(sign*xx,-2.336+.065*(xx/.75)**3,.698),.014,.004,Paint,axis='Y',verts=24) cyl('Rear parking sensor',(sign*.63,2.32,.667),.014,.005,Paint,axis='Y',verts=24) # rear exhaust surrounds and inner dark openings box('Exhaust satin surround',(sign*.645,2.270,.364),(.207,.104,.087),Alloy,.033) box('Exhaust outlet void',(sign*.645,2.329,.363),(.171,.009,.054),Rubber,.023) o=box('Rear bumper reflector',(sign*.692,2.30,.492),(.175,.008,.024),Lamps,.008);lamp_tag(o,'red') box('Lower front chin',(0,-2.267,.334),(1.60,.17,.07),Trim,.027) box('Front undertray silver guard',(0,-2.315,.376),(1.09,.061,.039),Alloy,.016) box('Rear valance',(0,2.256,.347),(1.49,.15,.13),Trim,.041) tube('Rear bumper satin strip',[(-.79,2.26,.53),(-.5,2.344,.526),(0,2.353,.526),(.5,2.344,.526),(.79,2.26,.53)],.011,Alloy,res=3) # Fifth door seam, rear plate recess (blank, no text), release and reversing camera. tube('Tailgate shutline',[(-.735,2.163,1.132),(-.717,2.279,.918),(-.685,2.316,.726),(-.58,2.335,.683),(0,2.347,.677),(.58,2.335,.683),(.685,2.316,.726),(.717,2.279,.918),(.735,2.163,1.132)],.003,Rubber,res=2) box('Tailgate plate recess',(0,2.317,.83),(.48,.015,.136),Trim,.018) box('Blank plate',(0,2.329,.83),(.396,.007,.089),Alloy,.009) box('Tailgate release',(0,2.311,.936),(.168,.022,.018),Trim,.007) cyl('Rear camera',(0,2.329,.938),.009,.008,Glass,axis='Y',verts=24) # windscreen and rear wipers, cowl, washer jets box('Windscreen cowl',(0,-.66,1.107),(1.52,.07,.024),Trim,.01) for sign in [-1,1]: tube('Wiper arm',[(sign*.29,-.647,1.135),(sign*.23,-.578,1.172),(sign*.50,-.555,1.19)],.006,Trim,res=2) tube('Wiper blade',[(sign*.12,-.565,1.187),(sign*.61,-.56,1.188)],.008,Rubber,res=2) box('Washer nozzle',(sign*.39,-.798,1.132),(.023,.026,.010),Trim,.005) tube('Rear wiper',[(.05,2.067,1.155),(.33,2.027,1.191),(.52,2.005,1.211)],.007,Trim,res=2) # Interior: floor, five contoured seats with headrests, stitched inserts, dash and door cards. box('Cabin floor',(0,.45,.391),(1.62,2.77,.15),Interior,.04) box('Dashboard',(0,-.52,1.005),(1.55,.40,.205),Interior,.064) box('Upper dash brow',(0,-.57,1.098),(1.52,.27,.056),Trim,.026) box('Centre console',(0,-.04,.664),(.27,.95,.38),Interior,.044) box('Console bright edge',(0,-.025,.849),(.285,.56,.025),Alloy,.012) box('Console top',(0,-.025,.867),(.26,.55,.025),Trim,.012) for yy in [.04,.18]:cyl('Cupholder',(0,yy,.885),.045,.008,Rubber,axis='Z',verts=32) box('Gear selector',(0,-.17,.92),(.067,.073,.09),Trim,.021) box('Central display',(0,-.326,1.104),(.255,.022,.153),Trim,.018) box('Dark display glass',(0,-.31,1.109),(.227,.005,.124),Glass,.010) for xx in [-.58,-.23,.23,.58]: box('Dash vent',(xx,-.299,1.015),(.14,.017,.049),Rubber,.01) for dz in [-.014,0,.014]:box('Vent vane',(xx,-.287,1.015+dz),(.121,.006,.003),Alloy,.001) for row,yy in [('front',.13),('rear',1.18)]: for xx in ([-.43,.43] if row=='front' else [-.47,0,.47]): w=.44 if row=='front' else .405 box('Seat cushion',(xx,yy,.61),(w,.49,.15),Interior,.06) ob=box('Seat back',(xx,yy+.205,.898),(w,.15,.56),Interior,.065,rot=(-.11,0,0)) box('Seat back centre insert',(xx,yy+.111,.898),(w*.63,.028,.399),Trim,.035,rot=(-.11,0,0)) for dx in [-w*.33,w*.33]: box('Seat side bolster',(xx+dx,yy+.08,.875),(.092,.109,.43),Interior,.039,rot=(-.11,0,0)) tube('Seat double stitched piping',[(xx+dx,yy+.019,.701),(xx+dx,yy+.067,.965),(xx+dx,yy+.093,1.064)],.0023,Alloy,res=1) for dx in [-.06,.06]:cyl('Headrest post',(xx+dx,yy+.222,1.18),.008,.11,Alloy,axis='Z',verts=16) box('Adjustable headrest',(xx,yy+.23,1.262),(.245,.115,.185),Interior,.045) for sign in [-1,1]: for yy in [.0,.97]: box('Door card',(sign*.806,yy,.78),(.077,.82,.45),Interior,.028) box('Door armrest',(sign*.745,yy,.846),(.13,.50,.07),Trim,.027) box('Interior handle',(sign*.737,yy-.19,.955),(.027,.106,.023),Alloy,.009) box('Door speaker',(sign*.756,yy+.20,.677),(.009,.194,.11),Trim,.025) # Steering wheel hub on vehicle left. Ring lies approximately XZ; tilt follows column. steer_center=Vector((.43,-.22,1.02)) ringpts=[tuple(steer_center+Vector((.166*cos(2*pi*k/80),.035*sin(2*pi*k/80),.166*sin(2*pi*k/80)))) for k in range(80)] tube('Leather steering rim',ringpts,.018,Interior,'SteeringWheel',True,4) box('Steering airbag hub',steer_center,(.14,.085,.09),Trim,.032,'SteeringWheel') for a in [0,pi,1.5*pi]:tube('Steering spoke',[tuple(steer_center),tuple(steer_center+Vector((.143*cos(a),.03*sin(a),.143*sin(a))))],.016,Alloy,'SteeringWheel',res=3) tube('Steering column',[(.43,-.30,1.02),(.43,-.46,.94)],.035,Trim,res=3) box('Instrument binnacle',(.43,-.40,1.101),(.315,.17,.132),Trim,.045) for x in [.353,.505]:cyl('Instrument gauge',(x,-.309,1.107),.057,.005,Glass,axis='Y',verts=48) # Wheels are detailed lathed profiles. All four have local origin at axle centre. def lathe_x(name,cx,cy,profile,mat,group,n=96): v=[];f=[] for x,r in profile: for k in range(n):a=2*pi*k/n;v.append((cx+x,cy+r*cos(a),.375+r*sin(a))) for j in range(len(profile)-1): for k in range(n):a=j*n+k;b=j*n+(k+1)%n;f.append((a,b,b+n,a+n)) return mesh(name,v,f,mat,group) for sign in [1,-1]: for front,ay in [(True,-1.375),(False,1.375)]: group='Wheel_'+('F' if front else 'R')+('L' if sign==1 else 'R');cx=sign*.805 profile=[(-.125,.266),(-.128,.292),(-.124,.326),(-.116,.348),(-.100,.366),(-.083,.373),(-.060,.375),(-.041,.375),(-.037,.370),(-.030,.370),(-.026,.375),(-.005,.375),(.005,.375),(.009,.370),(.016,.370),(.020,.375),(.041,.375),(.045,.370),(.052,.370),(.056,.375),(.080,.373),(.100,.366),(.116,.348),(.124,.326),(.128,.292),(.125,.266)] lathe_x('Radial tyre carcass',cx,ay,profile,Rubber,group,112) # Four rows of small diagonal tread blocks, continuous around circumference. for k in range(88): a=2*pi*k/88 for j in [-1,1]: x=cx+j*.065;r=.374 o=box('Tread shoulder block',(x,ay+r*cos(a),.375+r*sin(a)),(.058,.017,.006),Rubber,.0015,group,rot=(a-pi/2,0,j*.22)) # subtle concentric moulding rings on outer tyre sidewall outer=cx+sign*.126 for rr in [.283,.306,.339]: tube('Sidewall mould line',[(outer,ay+rr*cos(2*pi*k/96),.375+rr*sin(2*pi*k/96)) for k in range(96)],.0018,Rubber,group,True,2) for k in range(56): a=2*pi*k/56 tube('Sidewall radial micro ribs',[(outer,ay+.314*cos(a),.375+.314*sin(a)),(outer,ay+.331*cos(a+.014),.375+.331*sin(a+.014))],.001,Rubber,group,res=1) # alloy rim barrel, outer polished lip, dark rotor and drilled disc rimprofile=[(-.116,.249),(-.10,.253),(.10,.253),(.119,.261),(.127,.263),(.131,.255),(.126,.244),(.110,.241)] lathe_x('Cast alloy barrel',cx,ay,rimprofile,Alloy,group,96) xface=cx+sign*.132 cyl('Brake rotor',(cx+sign*.065,ay,.375),.209,.016,Alloy,group,verts=96) cyl('Rotor centre',(cx+sign*.078,ay,.375),.101,.021,Trim,group,verts=64) for rr in [.158,.186]: for k in range(24): a=2*pi*k/24+(rr-.15)*5;cyl('Rotor drilled hole',(cx+sign*.077,ay+rr*cos(a),.375+rr*sin(a)),.0038,.0015,Rubber,group,verts=8) box('Brake caliper',(cx+sign*.089,ay+.159,.388),(.051,.07,.16),Trim,.016,group) # Ten swept split spokes, geometry tapers and catches highlights. for k in range(5): for split in [-1,1]: a=2*pi*k/5+split*.09 r0=.057;r1=.244;w0=.014;w1=.019 coords=[] for dx in [-.012,.012]: for rr,ang,w in [(r0,a-.1,w0),(r1,a+split*.06,w1)]: for edge in [-1,1]: coords.append((xface+sign*dx,ay+rr*cos(ang)+edge*w*(-sin(ang)),.375+rr*sin(ang)+edge*w*cos(ang))) o=mesh('Machined split spoke',coords,[(0,2,3,1),(4,5,7,6),(0,4,6,2),(1,3,7,5),(0,1,5,4),(2,6,7,3)],Alloy,group);bevel(o,.004,3) cyl('Unbranded wheel hub',(xface+sign*.013,ay,.375),.061,.034,Alloy,group,verts=64) cyl('Centre hub insert',(xface+sign*.033,ay,.375),.031,.005,Trim,group,verts=48) for k in range(5): a=2*pi*k/5;cyl('Hex wheel bolt',(xface+sign*.034,ay+.047*cos(a),.375+.047*sin(a)),.009,.008,Trim,group,verts=6) tube('Valve stem',[(xface,ay-.218,.41),(xface+sign*.012,ay-.229,.412)],.004,Rubber,group,res=2) # Underbody, axles and suspension sit behind the wheel geometry. box('Underbody',(0,0,.26),(1.49,3.83,.10),Trim,.035) for ay in [-1.375,1.375]: cyl('Axle',(0,ay,.375),.044,1.57,Trim,axis='X',verts=24) for sign in [-1,1]:tube('Suspension strut',[(sign*.73,ay,.39),(sign*.71,ay,.72)],.034,Trim,res=3) # UVs, normals, modifiers and rigid assembly naming. for g,obs in GROUPS.items(): for o in obs: active(o);bpy.ops.object.transform_apply(location=False,rotation=True,scale=True) # Reliable normals; UV generated after all bevels. Preserve lamp palette UVs. bm=bmesh.new();bm.from_mesh(o.data);bmesh.ops.recalc_face_normals(bm,faces=bm.faces);bm.to_mesh(o.data);bm.free() if not o.data.uv_layers:o.data.uv_layers.new(name='UVMap') if 'lamp_u' in o: for d in o.data.uv_layers.active.data:d.uv=(o['lamp_u'],.5) else: # Box projection in real metres: shared repeatable photographic material, no unique atlas cost. uv=o.data.uv_layers.active.data for p in o.data.polygons: a=max(range(3),key=lambda i:abs(p.normal[i]));axes=[i for i in range(3) if i!=a] for li in p.loop_indices: co=o.data.vertices[o.data.loops[li].vertex_index].co;uv[li].uv=(co[axes[0]]*.65,co[axes[1]]*.65) # Join exactly one mesh per moving rigid node. bpy.ops.object.select_all(action='DESELECT') for o in obs:o.select_set(True) bpy.context.view_layer.objects.active=obs[0];bpy.ops.object.join();o=bpy.context.object;o.name=g if g.startswith('Wheel_'):pos=Vector((.805 if g.endswith('L') else -.805,-1.375 if g[6]=='F' else 1.375,.375)) elif g=='SteeringWheel':pos=steer_center else:pos=Vector((0,0,0)) S.cursor.location=pos;bpy.ops.object.origin_set(type='ORIGIN_CURSOR');GROUPS[g]=o # Remove tiny degenerate geometry and apply triangulation for authoritative count. bm=bmesh.new();bm.from_mesh(o.data);bmesh.ops.dissolve_degenerate(bm,dist=.000001,edges=bm.edges);bmesh.ops.triangulate(bm,faces=bm.faces);bm.to_mesh(o.data);bm.free() sockets={'Seat_Driver':(.43,.13,.68),'Door_L':(1.03,.13,.34),'Door_R':(-1.03,.13,.34),'Exhaust':(-.645,2.32,.364),'Light_Head_L':(.65,-2.30,.985),'Light_Head_R':(-.65,-2.30,.985),'Light_Tail_L':(.65,2.27,1.025),'Light_Tail_R':(-.65,2.27,1.025)} for name,pos in sockets.items(): o=bpy.data.objects.new(name,None);bpy.context.collection.objects.link(o);o.location=pos;o.empty_display_size=.08 assets=list(GROUPS.values())+[bpy.data.objects[n] for n in sockets] # Bake Paint is neutral. glTF factor is explicitly set after export, and renders use identical multiplication. active(GROUPS['Body']) for o in assets:o.select_set(True) S.cycles.samples=24 bpy.ops.export_scene.gltf(filepath=ROOT+'/family-suv.glb',export_format='GLB',use_selection=True,export_apply=True,export_yup=True,export_image_format='AUTO',export_materials='EXPORT',export_cameras=False,export_lights=False) # Enforce portable contracts at serialization: no shader-dependent recolouring assumptions. p=ROOT+'/family-suv.glb';data=open(p,'rb').read();jl,jt=struct.unpack_from('.\n'+'Differences: original grille and lamp graphics, simpler cabin controls; no branding; width includes mirrors; restrained wear rather than reference dirt.\n') print('EXPORT_COMPLETE',tris,os.path.getsize(p),manifest['bounding_box'],flush=True) # Neutral material factor is applied identically for offline pictures. nt=Paint.node_tree;bs=nt.nodes.get('Principled BSDF');link=bs.inputs['Base Color'].links[0];source=link.from_socket;nt.links.remove(link) paintmix=nt.nodes.new('ShaderNodeMixRGB');paintmix.blend_type='MULTIPLY';paintmix.inputs[0].default_value=1;nt.links.new(source,paintmix.inputs[1]);paintmix.inputs[2].default_value=(*PAINTS[0][1],1);nt.links.new(paintmix.outputs[0],bs.inputs['Base Color']) # Photographic daylight studio setup, excluded from delivered model. ground,gg=matbase('Studio ground',(.235,.255,.28),0,.78) box('Studio ground',(0,0,-.043),(200,200,.08),ground,.0,None) def area(name,pos,power,size,color,scale=None): d=bpy.data.lights.new(name,'AREA');o=bpy.data.objects.new(name,d);bpy.context.collection.objects.link(o);o.location=pos;d.energy=power;d.shape='DISK';d.size=size;d.color=color;o.rotation_euler=(Vector((0,0,.8))-o.location).to_track_quat('-Z','Y').to_euler() area('Large soft daylight', (3,-4,6),1400,5,(1,.93,.84)) area('Long cool rim',(-4,1,4),1100,4,(.78,.86,1)) area('Roof ribbon',(1,4,5),1200,3,(1,.97,.90)) d=bpy.data.cameras.new('Camera');cam=bpy.data.objects.new('Camera',d);bpy.context.collection.objects.link(cam);S.camera=cam def camera(pos,target=(0,0,.82),ortho=None): cam.location=pos;cam.rotation_euler=(Vector(target)-cam.location).to_track_quat('-Z','Y').to_euler();d.type='ORTHO' if ortho else 'PERSP';d.lens=53 if ortho:d.ortho_scale=ortho def render(name,w,h,samples=24): S.render.resolution_x=w;S.render.resolution_y=h;S.render.resolution_percentage=100;S.cycles.samples=samples;S.render.filepath=ROOT+'/'+name+'.png';bpy.ops.render.render(write_still=True);print('RENDERED',name,flush=True) camera((6.15,-7.2,3.55));render('final',1920,1080,32) camera((7,0,1.0),target=(0,0,.84),ortho=5.65);render('side',1920,1080,24) camera((6.15,-7.2,3.55)) clay,cp=matbase('Clay',(.42,.42,.42),0,.55);bpy.context.view_layer.material_override=clay;render('clay',1920,1080,24);bpy.context.view_layer.material_override=None for i,(name,col) in enumerate(PAINTS): paintmix.inputs[2].default_value=(*col,1);render('paint_'+str(i),640,360,12) paintmix.inputs[2].default_value=(*PAINTS[0][1],1) # Build the grid directly with Blender image buffers; no extra dependency. import numpy as np canvas=np.ones((720,1920,4),dtype=np.float32) for i in range(6): im=bpy.data.images.load(ROOT+'/paint_'+str(i)+'.png',check_existing=False);a=np.array(im.pixels[:],dtype=np.float32).reshape(360,640,4);row=1-i//3;col=i%3;canvas[row*360:(row+1)*360,col*640:(col+1)*640]=a;bpy.data.images.remove(im) im=bpy.data.images.new('Paint variations',1920,720);im.pixels.foreach_set(canvas.ravel());im.filepath_raw=ROOT+'/paints.png';im.file_format='PNG';im.save() bpy.ops.wm.save_as_mainfile(filepath=ROOT+'/family-suv.blend') print('BUILD_COMPLETE',flush=True)