Stereoscopic rendering with the Google VR SDK ?

Unity Engine
1

Hello Everybody I am building an app for the google daydream that makes use of 2D stereoscopic images. I am having issues figuring out how to set up my Main camera and how to tweak the instances of the left and right eye camera that the API creates.

Essentially I would like to create a Left eye camera that has a culling mask that only includes the left eye images and a right eye camera that only renders the right eye images.

Here is my main Camera in the inspector am I missing anything ?

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Also is there anyway for me to set the Left and Right eye camera culling mask values outside of manipulating them through code ?

2

Click on ā€˜Update Stereo Camerasā€™ you will get two camera as child, then you can set culling mask on both of these cameras.

3

Weā€™ve developed a shader for this and itā€™s now been approved on the asset store, hereā€™s the link:

Video:

4

Hey Everybody I just returned to this and after trying to update the stereo cameras I am still having issues rendering in Stereo . It almost seems like the ToggleCullingMask enum isnā€™t working on builds even though I can see that itā€™s working in editor .

Here is my main Camera :

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my left Camera:

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and my right camera:

3075560--231394--Screen Shot 2017-05-18 at 6.38.49 PM.png
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am I setting something wrong ? Also I am noticing that when I set the target Eye property on the individual eye cameras themselves, they default to whatever the main camera is set to at runtime . If the main camera is targeting both eyes could that be the source of my issues? Is there anyway I can stop The main camera from setting the target eyes of the children cameras at runtime ? Thank you for any and all help .

5

On further investigation the settings work perfectly in editor , however on builds it seems like my cameras culling masks or Stereo settings are being set or the entire stereo camera rig whose settings I set are replaced. has anyone else encountered this ?

6

are you using Unity 5.6 with native integration? Then this wonā€™t work because there is no left and right camera in the run-time build, only in the editor.

GVR 1.5 also removes the GVR stereocontroller, eye and gvrmain etc scripts itā€™s being replaced by an editor script that only moves the camera around in monoscopic view.

You can either mimic the setup by having a Main Camera, Left Eye Camera and Right Eye Camera with the ā€œTarget Eyeā€ property set to Left and Right and the main camera on Main Display (I think).
If you canā€™t figure it out, getting the asset Selzier made would be a quick solution, Iā€™m not sure how well it works though as I havenā€™t tried it myself since it is another $20.

7

Wow Thank you Masked Mouse , I am using 5.6 with Native integration so Iā€™ll roll my project back to an earlier version of unity and perhaps an earlier version of the GVR .

8

if you want to benefit some of the features in 5.6 you could potentially use the non-native GVR 1.40 in Unity 5.6
https://forum.unity3d.com/threads/unity-5-6-0f3-native-gvr-android-ios-enabling-and-disabling-vr.464499/#post-3064592

Iā€™m not sure if it works well as I havenā€™t tried that yet either since weā€™re just waiting for a fix of GVR overall since it is not working properly on iOS using a later version than Unity 5.6.0p1 (i.e 5.6.0p2, p3, p4, 5.6.1 are broken)
GVR native is just a buggy mess to work with thats for sure.

1 Like
9

Thank you again , I will try using the non-native version then !

10

By re-reading your opening post, youā€™re targetting daydream ainā€™t that 5.6 and higher only?
Not sure if that non native approach will work without the daydream sdk in the virtual reality supported but it is worth a shot I guess

If ya cant get it done, donā€™t waste too much time on it :wink:
Might want to consider to buy the asset

1 Like
11

You may be right Masked Mouse and yes you are right I am targeting Daydream specifically. Iā€™ll take your advice and look at the Asset . Iā€™ve spent far too much time trying to sort this out.