SUMMARY

1. A lot of 360 technology is natively supported in Unity3D. Examples here: https://assetstore.unity.com/packages/essentials/tutorial-projects/vr-samples-51519
2. Use the Google Cardboard VR API to export for Android or iOS. https://developers.google.com/vr/?hl=en https://developers.google.com/vr/develop/unity/get-started-ios
3. Images and videos are for the most equirectangular 2:1 360 captures, mapped onto a skybox (stills) or an inverted sphere (videos). Panoramas are also supported.
4. Stereo is achieved in different formats, but mostly with a 2:1 over-under layout.
5. Videos can be streamed from a server.
6. You can export 360 mono/stereo stills/videos from Unity3D with VR Panorama.
7. 4K is probably the best average resolution size for mobiles.
8. Interaction can be driven through the Google API gaze scripts/plugins or through Google Cloud Speech Recognition (paid service, https://assetstore.unity.com/packages/add-ons/machinelearning/google-cloud-speech-recognition-vr-ar-desktop-desktop-72625 )

DETAILS

• Google VR game to iOS in 15 minutes

• Step by Step Google VR and responding to events with Unity3D 2017.x

https://boostlog.io/@mohammedalsayedomar/create-cardboard-apps-in-unity-5ac8f81e47018500491f38c8
https://www.sitepoint.com/building-a-google-cardboard-vr-app-in-unity/

• Gaze interaction examples
  https://assetstore.unity.com/packages/tools/gui/gaze-ui-for-canvas-70881
  https://s3.amazonaws.com/xrcommunity/tutorials/vrgazecontrol/VRGazeControl.unitypackage
  https://assetstore.unity.com/packages/tools/gui/cardboard-vr-touchless-menu-trigger-58897

• Basics details about equirectangular 2:1 360 images and videos.
• Skybox cubemap texturing, shading and camera component for stills.
• Video player component on a sphere’s with a flipped normals shader.
• Note that you can also use a pre-modeled sphere with inverted normals.
• Note that for audio you will need an audio component on the sphere model.

• Setup a Full 360 stereoscopic video playback using an over-under layout split onto two cameras.
• Note you cannot generate a stereoscopic image from two 360 captures, it has to be done through a dedicated consumer rig.
  http://bernieroehl.com/360stereoinunity/

VR Actions for Playmaker
https://assetstore.unity.com/packages/tools/vr-actions-for-playmaker-52109

100 Best Unity3d VR Assets
http://meta-guide.com/embodiment/100-best-unity3d-vr-assets

…find more tutorials/reference under this blog page
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