DESCRIPTION

Game-Ready Tunnel – Baked Textures

This asset is a game-ready tunnel environment designed for real-time applications such as video games, interactive scenes, or environment prototyping.The tunnel is built as one continuous mesh (not modular) and optimized for efficient performance in game engines.

The geometry is lightweight and uses overlapping UVs to maximize texture detail while keeping the asset efficient for large environments. The total tunnel length is approximately 100 meters, making it suitable for long passages, underground paths, caves, or level transitions.

All textures are baked, allowing the mesh to stay performant while preserving visual surface detail.

Asset Features

Game-ready tunnel environment

Approx. 100 meter long mesh

Single mesh (non-modular) design

Optimized topology for real-time rendering

Overlapping UV layout to maximize texel density

Baked textures for improved performance

Textures Included

Two essential PBR maps are included:

Base Color (Albedo)

Roughness

Available texture resolutions:

8K

4K

2K

These options allow the asset to be used for different performance targets.

Typical Use Cases

Game levels

Underground tunnels

Cave passages

Sewers or industrial corridors

Exploration environments

Compatibility

The asset works with most 3D software and game engines that support standard PBR materials, including:

Unreal Engine

Unity

Blender

Other modern render engines

Additional Material Setup

The included .blend file also contains the original procedural material setup used to create the baked textures. This material can be reused to generate additional variations or similar assets.

Simply apply the material to new meshes to quickly create matching tunnel pieces or environment elements while maintaining the same visual style. This makes it easy to expand the environment or build additional assets based on the same material foundation.

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Tunnel Free low-poly 3D model

Royalty Free License (no AI)
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File formats
OBJ
OBJ<br />File Size: 346 MB
BLEND
Blender<br />Version: 5.0<br />File Size: 255 MB
PNG
PNG<br />Version: 7-zip<br />File Size: 172 MB
GLTF
glTF<br />Version: 2.0<br />File Size: 257 MB
FBX
Autodesk FBX<br />File Size: 245 MB
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FBX
This FBX file has successfully passed the CGT Standard technical and visual checks. The verification results are detailed in the section below.
File & scene
Binary FBX
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No unsupported objects
Unsupported objects:
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- Cameras
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Geometry
No N-gons
N-gons are polygons with five or more sides which might cause issues in certain processes like rendering or animation. Learn more
No faceted geometry
Faceted geometry uses flat surfaces without smoothing, which can look unrealistic on curves.
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Manifold geometry
Manifold geometry ensures all surfaces are properly connected, avoiding issues like edges shared by more than two faces.
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Textures & material
PBR textures
PBR textures simulate how light interacts with materials, making the model look realistic under different lighting.
Required PBR textures:
- Base Color
- Roughness
- Metalness
- Normal
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No embed textures
Embedded textures are stored inside the model file, increasing its size and sometimes causing compatibility issues.
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Square textures
Texture aspect ratio is the width-to-height ratio of a texture. Expected texture aspect ratio: 1:1
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Power of 2 texture sizes
Textures with dimensions in power of two (e.g. 512x512px, 1024x1024px) are used to optimize performance and memory usage.
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Assigned materials
Materials are applied to the 3D model to allow visualize a model's surface properties and appearance.
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UVs & naming
No UV overlaps
UVs overlap when multiple points on the 3D model's surface are mapped to the same point on the UV island causing texture stretching.
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UV unwrapped model
A UV unwrapped model means its 3D surface is flattened into 2D space, allowing textures to be applied accurately.
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Provided by designer
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3D Features
The model includes animations (movement or actions) that can be played in supported software or engines.
The model has a skeleton or bone structure, making it ready for posing or animation.
Textures
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Geometry
Polygon mesh
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4000000 polygons
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/
2000000 vertices
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Unwrapped UVs
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