Virtual Desktop comes with an Environment Editor which lets you create custom environments from various types of assets. To launch the Environment Editor, go to the Virtual Desktop install folder (usually C:\Program Files(x86)\Steam\steamapps\common\Virtual Desktop\) and double click "Environment Editor.exe". (Note: publishing an environment to the workshop is only possible through the Environment Editor on Steam)

These are the most compelling environments in Virtual Desktop. They are fully rendered 3D scenes with the ability to display the desktop on a physical mesh. Model environments will require a model file in .FBX, .OBJ or other common formats[assimp.org]. Many modeling applications like 3DS Max, Maya or Blender can create these files. Here are the requirements:

• Textures must have lights baked in
  
• Textures must be saved as separate files (not embedded)
  
• The mesh for the screen must be named "Screen" (not case sensitive)
  
• User head will be at (0,0,0)
  
• If positional tracking doesn't seem to work, try setting the scale of the model to 0.01

Cubemaps are .dds files with 6 textures (1 for each face of a cube). High resolutions are recommended here (a minimum of 2k x 2k per face is recommended).

Those are generated from tools such as OTOY or 3DS Max and consist of a strip of 12 images laid out horizontally. Png or jpg are the recommended formats here. A good resolution for those is typically 18k x 1.5k.

Panoramas are created from equirectangular images captured from cameras such as the Ricoh Theta[theta360.com]. Those types of images are widely available online. High resolution images here are recommended. The best panoramas will be using 8k images.