Side-by-side for multiple viewports.

[Brahe0]

Hi! First of all, thank you for the amazing helpful tool that you've built!

I'm working on a cave that will have four projectors, the user will be moving in the space and a camera group with four cameras will be adjusting the view. I would like to arrange them like I've shown in the print screen, because then I'll be able to divide the view accordingly.

Is it possible to work that way? I've tested one projector with side by side and the 3D glasses and it is pretty nice. But when I try with two at the same time (stereo3D cs script in both of the cameras), I encounter problems with the viewport organization, multiple cursors appearing and other things like that.

It really seems to be a compatibility problem, I mean, it wasn't made to work that way. If it's not possible to do with the current software, what would you suggest for me to change in the code to achieve what I need?

Thanks one more time!

[ebadier]

Hi @Brahe0,

I guess you are trying to drive your 4 stereoscopic projectors (in active stereo= frame sequential) using only one computer.
Then the only way to achieve active stereoscopy using 4 videoprojectors from one computer is to have a nvidia quadro graphic card with the 4 videoprojectors connected to it (1x display port per videoprojector in frame sequential mode).
Then to drive 4 active stereoscopic cameras with Unity (one camera per videoprojector), you first need to setup a Mosaic using nvidia drivers and then activate stereo on it: nvidia call it "Mosaic Premium". Then in Unity you should split the big Mosaic screen using your cameras Rect.

The logic to activate active S3D from @Vital-Volkov's code is working, but you shouldn't use the stereo3D script anymore on your cameras to get the parallax effect but instead compute off-axis projection matrices using your real screens corners positions and user's head position.

Hope this helps.

[Brahe0]

Thank you, @ebadier!

We're studying different approaches at the moment and I appreciate you taking your time to help.

[Vital-Volkov]

Hi @Brahe0,
Thanks!
I am making a plugin for all things to work for one screen with a single S3D script first.
I checked now what you say and see the problem with multiple S3D scripts. I'll make it to work later.
For a fast fix change S3D script to assign all created S3D cameras to the same output display as the parent camera.
Change camera layers to not see UI of each other and disable mouse control or panel settings entirely if all other screens are the same as main screen and all S3D settings can be read from parent script.