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# Sample Meshes
This directory contains sample meshes that might be useful across the project, in both
tests and examples. These are simple test cases for stress-testing and prototyping
and are not meant to be high-quality 3D examples.
## Flat-shaded Ico Sphere
**Filenames**: [ico_flat.obj](ico_flat.obj), [ico_flat.usda](ico_flat.usda).
**Source**: this mesh is an ico sphere that was authored in Blender with flat shading.
**Formats**: was exported as both `obj` and `usda` (ascii) from Blender.
**Sanity checks**: displays correctly as `obj` and `usda` imported into Blender3.1 and as `usda` imported into [NVIDIA Omniverse](https://www.nvidia.com/en-us/omniverse/).
<img width="30%" style="padding:0 20px 0 0; float: left" src="renders/ico_flat.jpg">
**Attributes** of the single mesh in this file:
* Vertices: 42
* Faces: 80 triangles
* Materials: one simple material applied to all faces
* Normals: for flat shading (same normal for all vertices of a face)
* UVs
<div style="clear:both"></div>
## Smooth-shaded Ico Sphere
**Filenames**: [ico_smooth.obj](ico_smooth.obj), [ico_smooth.usda](ico_smooth.usda).
**Source**: this mesh is an ico sphere that was authored in Blender with smooth shading.
**Formats**: was exported as both `obj` and `usda` (ascii) from Blender.
**Sanity checks**: displays correctly as `obj` and `usda` imported into Blender3.1 and as `usda` imported into [NVIDIA Omniverse](https://www.nvidia.com/en-us/omniverse/).
<img width="30%" style="padding:0 20px 0 0; float: left" src="renders/ico_smooth.jpg">
**Attributes** of the single mesh in this file:
* Vertices: 42
* Faces: 80 triangles
* Materials: one simple material applied to all faces
* Normals: for smooth shading
* UVs
<div style="clear:both"></div>
## Textured Fox
**Filenames:** [fox.obj](fox.obj), [fox.usdc](fox.usdc).
**Source:** this file is a simiplified version of TurboSquid ID 1073771, which NVIDIA has licensed with distribution rights. *By using this TurboSquid model, you agree that you will only use the content for research purposes only. You may not redistribute this model.*
**Formats**: the original format is `obj`, which was converted to `usdc` (binary) using Blender exporter.
**Sanity checks**: displays correctly as `obj` and `usdc` imported into Blender3.1 and as `usdc` imported into [NVIDIA Omniverse](https://www.nvidia.com/en-us/omniverse/).
<img width="30%" style="padding:0 20px 0 0; float: left" src="renders/fox.jpg">
**Attributes** of the single mesh in this file:
* Vertices: 5002
* Faces: 10000 triangles
* Materials: one simple material with texture applied to all faces
* Normals: for smooth shading
* UVs.
<div style="clear:both"></div>
## Multi-Material Pizza
**Filenames:** [pizza.obj](pizza.obj), [pizza.usda](pizza.usda).
**Source:** this file was authored in Blender with pizza texture taken from a [royalty-free photo by Rene Strgar](https://www.pexels.com/photo/italian-style-pizza-13814644/).
**Formats**: was exported as both `obj` and `usda` (ascii) from Blender.
**Sanity checks**: displays correctly as `obj` (not usd) imported into Blender3.1 and as `usda` imported into [NVIDIA Omniverse](https://www.nvidia.com/en-us/omniverse/).
<img width="30%" style="padding:0 20px 0 0; float: left" src="renders/pizza.jpg">
**Attributes** of the single mesh in this file:
* Vertices: 482
* Faces: 960 triangles
* Materials: one simple material and one texture material applied to groups of faces
* Normals: for smooth shading
* UVs
<div style="clear:both"></div>
## Armchair Quad Meshes
**Filenames:** [armchair.obj](armchair.obj), [armchair.usdc](armchair.usdc).
**License:** this model is released under [Creative Commons — Attribution 4.0 International — CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) License.
**Formats**: was exported as both `obj` and `usdc` (binary) from Blender; usd format contains a transform.
**Sanity checks**: displays correctly as `obj` imported into Blender3.1 and as `usdc` imported into [NVIDIA Omniverse](https://www.nvidia.com/en-us/omniverse/).
<img width="30%" style="padding:0 20px 0 0; float: left" src="renders/armchair.jpg">
**Attributes** of the three mesh objects:
1. Mesh 0: Back_LP
* Vertices: 4146, Faces: 4144 quads, normals, UVs
* Materials: one textured material (yellow)
2. Mesh 1: Sides_LP
* Vertices: 912, Faces: 912 quads, normals, UVs
* Materials: one textured material (white)
3. Mesh 3: Seat_LP
* Vertices: 4146, Faces: 4144 quads, normals, UVs
* Materials: same material as for Mesh 0
<div style="clear:both"></div>
## Quad Multi-Object Multi-Material Amsterdam
**Filenames:** [amsterdam.obj](amsterdam.obj), [amsterdam.usda](amsterdam.usda).
**Source:** this stylized city was authored in Blender, it contains simple materials and no textures.
**Formats**: was exported as both `obj` and `usda` (ascii) from Blender.
**Sanity checks**: displays correctly as `obj` imported into Blender3.1 and as `usda` imported into [NVIDIA Omniverse](https://www.nvidia.com/en-us/omniverse/).
<img width="30%" style="padding:0 20px 0 0; float: left" src="renders/amsterdam.jpg">
**Attributes** of the 18 meshes in this file:
* Vertices: 4, 98, 98, 98, 386, 386, 98, 8, 98, 98, 98, 4, 4, 4, 386, 98, 4, 4
* Faces (all quads): 1, 96, 96, 96, 384, 384, 96, 6, 96, 96, 96, 1, 1, 1, 384, 96, 1, 1
* Materials: 14 simple materials, with all faces of each mesh bound to a single material
* Normals
* UVs
<div style="clear:both"></div>