Formats

The standard formats used in Omniverse is USD for scenes and MDL for materials. Most users will need to convert their content to be usable in omniverse if coming from external applications. Luckily, Omniverse offers several ways to manage such content.

Asset Converter

Apps in omniverse are loaded with the Asset Converter extension. With it, users can convert models into USD using the Asset Converter service. Below is a list of formats it can convert to USD.

Format

Name

Description

.fbx

Autodesk FBX Interchange File

Common 3D model saved in the Autodesk Filmbox format

.obj

Object File Format

Common 3D Model format

.gltf

GL Transmission Format File

Common 3D Scene Description

Connectors

Specialized connectors offer a more finely tuned conversion process. Through connectors, native files are directly translated to usd.

Note

Because connected applications often have numerous file conversion capabilities, a path to even the most obscure formats may be possible via various connectors.

Materials

NVIDIA has developed a custom schema in USD to represent material assignments and specify material parameters. In Omniverse, these specialized USD’s get an extension change to .MDL signifying that it is represented in NVIDIA’s open-source MDL (Material Definition Language).

MDL Texture Formats Accepted

MDL Materials throughout Omniverse can accept texture files in the following formats.

Extension

Format

Description

.bmp

Bitmap Image File

Common image format developed by Microsoft.

.dds

DirectDraw Surface

Microsoft DirectX format for textures and environments.

.exr

OpenEXR

High Dynamic Range format developed by Industrial Light and Magic

.gif

Graphical Interchange Format File

Common color constrained lossless web format developed by CompuServe.

.hdr

High Dynamic Range Image File

High Dynamic Range format developed by Industrial Light and Magic.

.jpeg

Joint Photographic Experts Group

Common “lossy” compressed graphic format.

.jpg

Joint Photographic Experts Group

Common “lossy” compressed graphic format.

.tif

Target Image File Format

Common “lossless” and “lossy” graphic format.

.png

Portable Network Graphics File

Common “lossless” compressed graphics format.

.psd

Adobe Photoshop Document

The native format for Adobe Photoshop documents.

.tga

Truevision Advanced Raster Graphics Adapter

High Quality raster graphic format developed by Avid Technology |