Stereoscopic 3D is Stretched

[KaneStaff]

Hi,

Firstly, I appreciate any help! Dolphin is a wonderful program, and I would love to enjoy it in 3D.

I am having a strange issue with Dolphin 5.0's Stereoscopic 3D mode (this problem was also in previous versions, but I am currently using 5.0). When I start a game in side-by-side Stereoscopic 3D, the images are squished as if the game were trying to render widescreen in a 4:3 window. The window looks as follows:



My computer's specs are as follows:

OS: Windows 10 Home
GPU: Nvidia GeForce GTX 960
CPU: AMD FX-8320
RAM: 8 GB

I can't think of any relevant config settings, but I can tell what they are if anyone needs them.

The graphics settings I have changed from default are as follows:

• General
  • Backend: Direct3D 11 (I have tried D3D 12 and OpenGL)
    
  • V-Sync on (I have tried on and off)
    
• Enhancements
  • Internal Resolution: 2x Native (I have tried Native)
    
  • Anti-Aliasing: 2x MSAA (I have tried 1x)
    
  • Anisotropic Filtering: 2x (I have tried 1x)
    
  • Force Texture Filtering on (I've tried on and off)
    
  • Stereoscopic 3D Mode: Side-by-Side
    
  • Swap Eyes on
    
• Hacks
  • Skip EFB Access from CPU (I have tried on and off)
    
  • Store EFB Copies to Texture Only off (I have tried on and off)
    
  • Borderless Fullscreen on (I have tried fullscreen and not along with borderless off)
    

I have tried resizing the window all kinds of ways and going fullscreen. I have also tried Stretch to Window under Aspect Ratio which allows me to stretch it by eye, but it does not set it to the right resolution automatically. When Stereoscopic 3D is off, the screen is not stretched.

I tried this on my friend's computer, and it seemed to be fine. I am unsure of why this is inconsistent between computers. If you have any ideas on how to fix this, please suggest them.

If you need any other information, please just request it. Thanks!

[TurboK]

That's how side-by-side 3D looks (software-wise) on non 3D-screen, as it needs to present two pictures regardless of the monitor. Another example is https://www.youtube.com/watch?v=hcHsE5pUgUs.

The monitor/TV/Projector that plays the video should switch to stereoscopic mode either automatically (that is, when the device sees this kind of double picture) or manually (selecting side-by-side 3D/stereoscopy with your i.e. remote controller). This means that the actual video data stays the same, but the display device stretches the two sides, doubles the refresh rate (this can only be done with a 3D capable device) and thus (with the aid of 3D glasses) shows only the right eye picture for the right eye and the left eye picture for you left eye.

I'm guessing that your monitor either is not 3D capable or if it is 3D monitor it does not recognize that the video is stereoscopic. Do you have 3D glasses connected when you selected the stereoscopy mode?

[Craftyawesome]

Try changing crop in graphics, advanced?

[KaneStaff]

That's how side-by-side 3D looks (software-wise) on non 3D-screen, as it needs to present two pictures regardless of the monitor. Another example is https://www.youtube.com/watch?v=hcHsE5pUgUs.

The monitor/TV/Projector that plays the video should switch to stereoscopic mode either automatically (that is, when the device sees this kind of double picture) or manually (selecting side-by-side 3D/stereoscopy with your i.e. remote controller). This means that the actual video data stays the same, but the display device stretches the two sides, doubles the refresh rate (this can only be done with a 3D capable device) and thus (with the aid of 3D glasses) shows only the right eye picture for the right eye and the left eye picture for you left eye.

I'm guessing that your monitor either is not 3D capable or if it is 3D monitor it does not recognize that the video is stereoscopic. Do you have 3D glasses connected when you selected the stereoscopy mode?

I do not have any special hardware (no monitor or glasses) for 3D viewing. I am just trying to view the 3D cross-eyed with Side-by-Side with the eyes swapped. I would understand why it is squished if there were no more space left in my window for the picture to stretch on, but there is a lot of black space on the screen (the picture I have on the thread is simply a printscreen cropped to the window; I did not manually separate the images). If I drag the window out to make it wider, the pictures just move apart from one another, and there is more black space. This picture illustrates the issue: http://i.imgur.com/3rqIYkD.png It's a pretty huge picture, so I figured I wouldn't include it directly.

It is not an issue with monitor space. Any ideas? Thanks!

Try changing crop in graphics, advanced?

Unfortunately, that only zooms the picture in a bit. Thanks, though!

EDIT: I also tried using Dolphin 5.0-129. That did not fix the issue.

[mbc07]

I do not have any special hardware (no monitor or glasses) for 3D viewing. I am just trying to view the 3D cross-eyed with Side-by-Side with the eyes swapped

AFAIK you can't. The 3D options Dolphin have are specifically for 3D TVs/Monitors/Projetors. So, you do need special hardware, and there's nothing wrong with the output you're getting...

(well, the anaglyph option also allows specifying a custom 3D shader, maybe you can hack that to provide what you want)

[KaneStaff]

AFAIK you can't. The 3D options Dolphin have are specifically for 3D TVs/Monitors/Projetors. So, you do need special hardware, and there's nothing wrong with the output you're getting...

(well, the anaglyph option also allows specifying a custom 3D shader, maybe you can hack that to provide what you want)

What I don't really get is why the "Swap Eyes" option in Stereoscopy has a description of "Swaps the left and right eye. Mostly useful if you want to view side-by-side cross-eyed." What is the point of not giving a mode that allows using the proper ratio? If this is not currently a feature, can I request it in the Development thread? Is that where requests are properly handled?

The only way I can figure out how to solve the problem is with trial-and-error using printscreens and dragging the window size around in Stretch to Window aspect ratio mode. I got it to look as follows by using Stretch to Window: http://i.imgur.com/N6AC8im.png This only works with 4:3 games as far as I can tell, though, and I can't resize the window without messing up the ratio. It would really be nice to have Dolphin do this for me like with normal Auto Aspect Ratio, but for some reason it doesn't work on Side-by-Side.

Thanks!

[mbc07]

Alright, try filling a new issue. Put a "Feature Request" prefix on the title, and make sure to confirm a similar issue doesn't exist already...

[KaneStaff]

Alright, try filling a new issue. Put a "Feature Request" prefix on the title, and make sure to confirm a similar issue doesn't exist already...

I submitted a request, and all I got was that they don't plan on supporting cross-eye view. :/ Thanks for the help, though!

[3DJ]

Just wanted to pop in and point out that there's 2 ways to go about this:

A) If you want to keep the original aspect ratio (4:3, I think), then leave it as-is. The 3D device you're feeding this to should then keep the black bars, which is the standard way to handle narrow aspect ratios on widescreen displays.

B) If you want to stretch out each view so they each fill the entire available area so there's no black bars, try:
Settings > Graphic Settings > Aspect Ratio > Stretch to Window

C) If you want to render the stuff that would normally be outside the FOV for proper(-ish) widescreen, then try:
Settings > Graphic Settings > Aspect Ratio > Stretch to Window
Settings > Graphic Settings > Enhancements > Widescreen hack

[GameKyuubi]

As a fellow crosseye-3D enjoyer this is a feature I'd like to see officially implemented.