# NFT

## Specifications

* File type: GLTF
* File size: < 10MB (Should be as small as possible)
* Triangles: < 20,000 max (Should be as small as possible)
* Texture: 1024x1024 (Recommended) or 2048x2048
* Image Texture: Emissive (not shader allowed)

## Characteristics

* Transform Y Up
* Mesh should include tangents, normals, UVs

## Objects

* No Light objects
* No Camera objects
* No Empty objects
* No Animation objects

## Positioning

* Origin: \[0, 0, 0]
* Scale: \[1, 1, 1]
* Rotation: \[0, 0, 0]
* Max X Offset (width): 0.01
* Max Y Offset (height): 0.01
* Max Z Offset (length): 0.01

## Materials

* 4 Materials limit are mandatory
* Roof labeled ‘primary’ (Should be white with Ambient Occlusion)
* Walls labeled ‘secondary’(Should be white with Ambient Occlusion)
* Details labeled ‘details’(Should be white with Ambient Occlusion)
* Other labeled ‘other’’ (Should be texturized or colored)
* Ambient Occlusion must be baked in the main material
* No duplicated materials
* Texture format: JPEG
* Texture map must be baked
* Materials should not use any shader

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## UV Maps

* Do not leave unused areas
* Avoid stretched images
* If the model is symmetrical or has any repeated mesh or shape, these should be overlapped
* Include a 10px bleed for the UV Map islands
* Any UV Map island with flat colors/textures should be overlapped&#x20;
* Keep UV Map island size relatively scale according to the actual size of the area
* Avoid any stretched or curved sections for cylindrical shapes UV map