Spatial Cast is only for Macs at the moment, and requires macOS 10.15 Catalina or newer

Install Spatial Cast HERE 

Getting Started:

You might get this message, Click OK:

Go to Settings and give Spatial permission:

Once you have it installed and configured you should be able to Open it, It will look like this:

Once you open the desktop app, you will see the option to Start Mirroring.

Join a Spatial room in Spatial by any means and Click "Start Mirroring"

Abilities: 

- Right now you can only share your whole screen

- You can have up to 2 Casts in a given room

Interacting in VR?

- You can only click things (no drags, hovers, right-click, etc)

Audio Configuration: 

To capture desktop audio instead of your microphone, you’ll need to have the Soundflower audio loop driver installed and properly configured.

1) Grab and install Soundflower from https://github.com/mattingalls/Soundflower/releases/tag/2.0b2, follow instructions exactly.

Installation will require admin privileges.

2) Configure Soundflower for desktop capture.

a) Open Audio Midi Setup app from spotlight search.

b) Select Soundflower (2ch)

c) Click on the gear icon on the bottom of the selection panel and select both "Use this device for sound input” and Use this device for sound output.”

d) Make sure all audio levels at a reasonable volume and all channels are unmuted.

You can now close Audio Midi Setup and Open Spatial Cast.  Desktop audio will be forwarded to your Spatial Session. 

While using Soundflower you won’t hear any audio coming out of your Mac’s speakers, you can change the settings back by opening Audio Midi Setup again and selecting your usual speaker configuration.