3D EnvironmentURPv1.0.0

Parcel Depot

Modular Sorting & Packing

Build a low-poly post office with 83 model types, 84 prefabs, modular architecture, sorting and packing props, and an assembled URP environment.

Coming soon to the Unity Asset Store

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The complete 14 × 10 m post office demo scene

01 — Overview

A post office, front to back

Parcel Depot brings together the public counter and the working areas behind it. Assemble a customer hall with queue barriers, service counters, mailboxes and signs, then connect it to letter sorting, packing benches, shelves, conveyors, trolleys and pallet storage. A staff corner and small desk accessories complete the setting.

Use the complete post office scene as a starting layout or build your own room from the individual prefabs. A smaller reference scene provides a compact assembly example. Shared palette materials give the architecture, furniture and props a consistent low-poly appearance.

Door leaves and the four flaps of the open parcel have separate poseable pivots. Window and entrance glass can be disabled through an OptionalGlass child, and the bollard uses three convex collision shapes for its foot, stem and cap.

model types: 83; model types
prefabs: 84; prefabs
placements in the full demo: 358; placements in the full demo
complete post office: 14 × 10 m; complete post office
unique triangles: 51,461; unique triangles
shared texture maps: 5 × 512²; shared texture maps

02 — Layout

Explore the layout

Hover a marker or pick a zone to see what's there.

Isometric overview of the Parcel Depot post office: customer hall, POST and COLLECT counters, letter sorting, packing, storage and dispatch areas

Zone 1 of 7

Entrance

Glass double doors under the envelope sign, with a street postbox and bollards outside.

PO_EntranceFrame_200
PO_EntranceLeaf_L
PO_EntranceLeaf_R
EnvelopeSign
StreetPostbox
PO_Bollard

03 — Features

What's inside

Modular architecture

Walls, low walls, windows, partitions, an entrance and a roller shutter snap together on a 0.5 m grid with 90° turns. Corner posts cover wall-end joins.

Ready-made post office

A complete 14 × 10 m scene with 358 placements to start from, plus a compact ReferenceWorkplace scene that shows a smaller assembly.

Poseable doors and flaps

Door leaves and the four flaps of the open parcel rotate around preserved hinge pivots. No joints or clips — pose them or drive them with your own logic.

Optional glass

Window and entrance panes live under an OptionalGlass child. Disable it to remove both the pane rendering and the pane collision.

Colliders included

Compound boxes, flap-attached boxes, pane boxes and convex bollard shapes. Working surfaces carry support colliders at documented heights.

One shared palette

Two shared URP/Lit palette materials and five 512 × 512 maps keep every model consistent. Duplicate a material to recolor a whole family.

Real-world scale

One unit is one meter, +Y up and +Z forward, with bottom-center or hinge pivots. Every model's bounds are listed in the included inventory.

Mesh lettering

POST, COLLECT, SORT, DISPATCH and RETURNS signs, labels and displays are mesh geometry converted from Noto Sans — no font install required.

04 — Technical details

Technical details

Version: 1.0.0
Primary models: 83 FBX model types, 87 mesh parts
Prefabs: 84, including one frame-and-leaf assembly that reuses existing geometry
Scenes: 1 full post office demo with 358 placements; 1 compact reference scene
Primary geometry: 51,461 unique triangles; 97,910 primary triangles placed in the full demo
Optional glass: 1 shared two-triangle OBJ; 6 prefab pane references, 20 demo panes / 40 placed triangles
Collision-only geometry: 3 OBJ meshes, 60 triangles each; no visible renderers
Textures: 5 PNGs, each 512 × 512: 2 albedo, 2 packed metallic/smoothness, 1 emission
Materials: 2 shared palette materials, 1 transparent glass material, 2 demo materials; URP/Lit
UVs: Shared palette-cell UV0; secondary UVs supplied; no baked-lighting result claimed
Scale and pivots: Meter scale, +Y up, +Z forward; bottom-center and hinge pivots as appropriate
Colliders: Compound boxes, flap-attached boxes, optional pane boxes and convex bollard shapes
Dependencies: Universal Render Pipeline; no additional Asset Store product or runtime font dependency

05 — Compatibility

Compatibility

Target version

Unity 6.6

6000.6.0f1

Pipeline: URP 17.6.0
Platform: Windows Editor
Color space: Linear

Also tested

Unity 6.3

6000.3.23f1

Pipeline: URP 17.3.0
Platform: Windows Editor
Color space: Linear

Both configurations were checked for package import, scene opening, prefab and material references, and ordinary Play Mode rendering.

Not supported

Built-in Render Pipeline
HDRP

Not claimed

Other Unity patches, operating systems and Player builds are unverified.
Mobile support and target-device performance are not claimed.

06 — Model inventory

Model inventory

Every model in the package with its default-pose bounds, triangle count and placements in the full demo.

Showing 83 of 83 models · 51,461 triangles

Parcel Depot model inventory: category, default-pose bounds in meters, pivot, triangle count and placements in the full demo

BarcodeScannerCounter equipment	0.190 × 0.316 × 0.180Pivot: Source origin	352	2
Conveyor_150Storage & dispatch	0.640 × 0.800 × 1.500Pivot: Source origin	2,200	2
CornerPostArchitecture · PO_FacadePost.fbx	0.180 × 3.000 × 0.180Pivot: Bottom center	132	2
DoorFrame_100Architecture · PO_DoorFrame_100.fbx	1.000 × 3.000 × 0.126Pivot: Bottom center (grid)	192	1
DoorLeafArchitecture · PO_DoorLeaf.fbx	0.790 × 2.234 × 0.153Pivot: Hinge, bottom	660	1
ElectricalCabinetStaff & utility	0.400 × 0.600 × 0.181Pivot: Source origin	440	1
EnvelopeMail & sorting	0.220 × 0.002 × 0.110Pivot: Source origin	116	3
EnvelopeSignSigns, lights & decor · PO_Sign_Envelope.fbx	1.000 × 0.400 × 0.026Pivot: Back-plane center	232	1
FireExtinguisherStaff & utility	0.200 × 0.549 × 0.200Pivot: Source origin	1,244	1
FlatCartonStackPacking	0.606 × 0.105 × 0.426Pivot: Source origin	316	1
FloorBase_420Architecture	4.200 × 0.180 × 4.200Pivot: Source origin	44	0
FloorLine_100Architecture	0.040 × 0.001 × 1.000Pivot: Source origin	12	4
FloorTile_100Architecture	0.996 × 0.035 × 0.996Pivot: Source origin	44	160
KeyboardCounter equipment	0.430 × 0.027 × 0.150Pivot: Source origin	776	2
LabelPrinterCounter equipment	0.250 × 0.185 × 0.310Pivot: Source origin	512	0
LetterBundleMail & sorting	0.226 × 0.043 × 0.118Pivot: Source origin	443	25
LetterSortDesk_280Mail & sorting	2.800 × 2.150 × 0.750Pivot: Source origin	2,407	1
LetterTrayMail & sorting	0.350 × 0.078 × 0.271Pivot: Source origin	40	6
MailerBagMail & sorting	0.308 × 0.021 × 0.240Pivot: Source origin	256	0
MailingTubeMail & sorting	0.663 × 0.102 × 0.102Pivot: Source origin	204	0
MailSackClosedMail & sorting	0.472 × 0.620 × 0.379Pivot: Source origin	352	1
MailSackStandOpenMail & sorting	0.590 × 0.950 × 0.550Pivot: Source origin	1,480	1
NoticeBoardSigns, lights & decor	0.650 × 0.500 × 0.035Pivot: Source origin	440	1
OperatorChairStaff & utility	0.580 × 0.940 × 0.549Pivot: Source origin	1,320	1
OperatorMonitorCounter equipment	0.460 × 0.425 × 0.200Pivot: Source origin	304	2
PackingBench_205Packing	2.050 × 0.900 × 0.760Pivot: Bottom center	1,548	1
PackingPaperRackPacking	1.018 × 1.340 × 0.426Pivot: Source origin	1,044	1
Pallet_120Storage & dispatch	1.200 × 0.150 × 0.800Pivot: Source origin	880	2
PalletJackStorage & dispatch	0.550 × 1.120 × 1.450Pivot: Source origin	912	1
Parcel_LPacking	0.580 × 0.381 × 0.404Pivot: Source origin	408	17
Parcel_MPacking	0.380 × 0.281 × 0.304Pivot: Bottom center	408	11
Parcel_OpenPacking	0.839 × 0.541 × 0.679Pivot: Source origin	704	1
Parcel_SPacking	0.240 × 0.201 × 0.204Pivot: Source origin	408	3
ParcelScaleCounter equipment	0.460 × 0.148 × 0.392Pivot: Bottom center	694	2
PaymentTerminalCounter equipment	0.100 × 0.095 × 0.180Pivot: Source origin	540	2
PlatformTrolleyStorage & dispatch	0.650 × 0.920 × 1.050Pivot: Source origin	1,144	1
PO_BollardArchitecture	0.220 × 0.950 × 0.220Pivot: Bottom center	420	2
PO_Canopy_240Architecture	2.400 × 0.360 × 0.950Pivot: Bottom center	308	0
PO_Ceiling_200Architecture	2.000 × 0.120 × 2.000Pivot: Bottom center	12	0
PO_EntranceFrame_200Architecture	2.000 × 3.000 × 0.126Pivot: Bottom center	324	1
PO_EntranceLeaf_LArchitecture	0.873 × 2.334 × 0.147Pivot: Hinge, bottom	748	1
PO_EntranceLeaf_RArchitecture	0.873 × 2.334 × 0.147Pivot: Hinge, bottom	748	1
PO_FloorBaseArchitecture	14.240 × 0.180 × 10.240Pivot: Source origin	44	1
PO_LinearLight_150Signs, lights & decor	1.500 × 0.350 × 0.160Pivot: Bottom center	204	3
PO_NoticePaperSigns, lights & decor	0.190 × 0.260 × 0.004Pivot: Source origin	190	2
PO_Partition_100Architecture	1.000 × 1.500 × 0.120Pivot: Bottom center	36	2
PO_Partition_200Architecture	2.000 × 1.500 × 0.120Pivot: Bottom center	36	3
PO_ShutterFrame_300Architecture	3.000 × 3.000 × 0.329Pivot: Bottom center	552	1
PO_ShutterRaised_300Architecture	2.690 × 0.200 × 0.045Pivot: Bottom center (floor)	220	1
PO_Sign_COLLECTSigns, lights & decor	1.100 × 0.250 × 0.016Pivot: Source origin	230	1
PO_Sign_DISPATCHSigns, lights & decor	1.180 × 0.250 × 0.016Pivot: Source origin	304	1
PO_Sign_POSTSigns, lights & decor	0.820 × 0.250 × 0.016Pivot: Source origin	229	1
PO_Sign_RETURNSSigns, lights & decor	0.780 × 0.250 × 0.016Pivot: Source origin	216	1
PO_Sign_SORTSigns, lights & decor	0.850 × 0.250 × 0.016Pivot: Source origin	232	1
PO_Wall_100Architecture	1.000 × 3.000 × 0.120Pivot: Bottom center	36	20
PO_WallLow_100Architecture	1.000 × 0.800 × 0.120Pivot: Bottom center	36	10
PO_WallLow_200Architecture	2.000 × 0.800 × 0.120Pivot: Bottom center	36	6
PO_Window_200Architecture	2.000 × 1.200 × 0.120Pivot: Bottom center	60	8
POMailboxes_180Customer hall	1.800 × 1.280 × 0.286Pivot: Source origin	4,750	1
PostalBagMail & sorting	0.410 × 0.545 × 0.191Pivot: Source origin	416	1
QueueBelt_160Customer hall	0.022 × 0.044 × 1.600Pivot: Source origin	132	2
QueuePostCustomer hall	0.320 × 1.000 × 0.320Pivot: Source origin	280	4
ReceiptPrinterCounter equipment	0.170 × 0.145 × 0.210Pivot: Source origin	512	2
RollCageStorage & dispatch	0.780 × 1.650 × 0.850Pivot: Source origin	2,684	1
SafetyNoticeSigns, lights & decor	0.360 × 0.450 × 0.015Pivot: Source origin	760	1
ServiceCounter_180Customer hall	1.800 × 1.050 × 0.800Pivot: Source origin	288	2
ServiceCounterLow_120Customer hall	1.200 × 0.760 × 0.800Pivot: Source origin	288	1
Shelf_190Storage & dispatch	1.890 × 2.150 × 0.575Pivot: Source origin	3,916	3
StaffDesk_120Staff & utility	1.200 × 0.750 × 0.600Pivot: Source origin	880	1
StaffLockerStaff & utility	0.800 × 1.850 × 0.500Pivot: Source origin	1,220	1
StorageToteStorage & dispatch	0.575 × 0.310 × 0.416Pivot: Source origin	481	2
StreetPostboxCustomer hall	0.580 × 1.200 × 0.480Pivot: Bottom center	993	1
TapeDispenserPacking	0.134 × 0.175 × 0.240Pivot: Source origin	932	1
TicketKioskCustomer hall	0.460 × 1.350 × 0.420Pivot: Source origin	604	1
TransferTable_090Storage & dispatch	0.900 × 0.800 × 0.900Pivot: Source origin	704	1
WaitingBench_180Customer hall	1.800 × 0.850 × 0.580Pivot: Source origin	1,320	1
Wall_100Architecture	1.000 × 2.513 × 0.118Pivot: Source origin	132	0
Wall_200Architecture · PO_Wall_200.fbx	2.000 × 3.000 × 0.120Pivot: Bottom center (grid)	36	0
WallClockSigns, lights & decor	0.320 × 0.320 × 0.045Pivot: Source origin	868	1
WallLight_100Signs, lights & decor	1.065 × 0.120 × 0.085Pivot: Source origin	220	0
WallPostArchitecture	0.075 × 2.525 × 0.075Pivot: Source origin	44	0
WasteBinCustomer hall	0.324 × 0.420 × 0.324Pivot: Source origin	44	1
WritingDesk_180Customer hall	1.800 × 0.760 × 0.500Pivot: Source origin	528	1

Plus Door_100, a compound prefab (852 triangles) that combines DoorFrame_100 with its hinged DoorLeaf — 84 prefabs in total. A zero placement count marks a reusable variant that the full demo doesn't use.

07 — Getting started

Getting started

01
Prepare a URP project
Use a Universal 3D project with URP active in Graphics and the active Quality level, and set Player › Other Settings › Color Space to Linear. Let Unity finish resolving packages first.
02
Import the package
Import every entry into Assets/ParcelDepot — for a .unitypackage use Assets › Import Package › Custom Package. Your project settings are not replaced.
03
Open a demo scene
Scenes/ParcelDepot_PostOffice.unity is the complete post office. Scenes/ReferenceWorkplace.unity is a smaller assembly example.
04
Build your own
Drag prefabs from Assets/ParcelDepot/Prefabs into your scenes. Keep custom scenes and prefab variants outside the package folder so updates stay clean.

Working surfaces

Heights are relative to the unscaled prefab root; support colliders sit under each prefab's Geometry/Colliders.

Prefab	Working surface
PackingBench_205	Tabletop at Y = 0.900 m
ParcelScale	Pan top at Y = 0.148 m, centered at Z = −0.030 m
Conveyor_150	Cargo bed at Y = 0.790 m with 0.560 m clear width; rail tops at Y = 0.800 m

08 — Scope & limitations

Scope & limitations

Static environment art: no gameplay controllers, weighing or scanning logic, animated machinery, physics joints or animation clips.
Equipment, drawers, wheels and rollers are static. Lettering and displays are mesh geometry, not editable runtime text.
No LODs and no baked lighting. Secondary UVs are supplied, but no tested bake result is claimed.
Fine labels, thin edges and contact shadows can look jagged, grainy or banded at some camera distances and lighting settings; small labels are meant for close views.
Mobile support and target-device performance are not claimed.

Known Unity Editor messages

The tested Editor logs are not free of warnings or errors. These messages did not prevent the checked import, scene opening or ordinary Play Mode rendering, and the package files remained unchanged after reopening.

URP Terrain shader warnings

Unity reported unsupported URP Terrain/Lit and hidden Terrain base-pass shaders while importing its URP packages. Parcel Depot uses URP/Lit materials and contains no Terrain assets; all five supplied materials resolved, with no missing or pink materials in the inspected views.

Template package deprecation

Template-derived test projects reported deprecated Unity IAP 4 packages, and the Unity 6.6 project also reported Analytics package deprecation. These packages are not Parcel Depot dependencies.

Editor Search startup exception

In Unity 6.3 and 6.6, startup indexing raised an ArgumentOutOfRangeException in UnityEditor.Search.SearchDatabase. Its root cause is unconfirmed. In the Unity 6.3 check, subsequent scene checks and two normal Play Mode views completed. Editor Search itself was not validated, and no verified workaround is supplied.

Windows Editor startup messages

Licensing validation and access-token messages were followed by successful entitlement resolution, plus a Direct3D 12 info-queue query failure. These did not stop the tested sessions or render checks.

09 — Release notes

Release notes

Version 1.0.0

Initial release

83 model types and 84 prefabs for a modular post office, sorting and packing environment.
A complete post office scene with 358 placements and a smaller reference assembly scene.
Shared URP palette materials, five 512 × 512 texture maps and separate optional glass.
Poseable door leaves and four parcel flaps; static support colliders for benches, the scale and conveyor.
Lettering and numeric displays in 14 model types use mesh geometry converted from Noto Sans Regular 2.008, with font attribution and the OFL notice included.
Bollard collision uses separate convex foot, stem and cap shapes.

10 — Credits

Credits

Third-party font

Lettering in 14 model types was converted from Noto Sans Regular 2.008, licensed under the SIL Open Font License 1.1. The models contain converted geometry, so no font installation is required. ThirdPartyNotices.txt and OFL.txt are included in the package.

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