Subtitle stretching on high resolutions (>4k)

[darthdragonhc]

When I stretch MPC window through my 3 monitors I've got this kind of effect:

Is there a way, to render subtitles correctly in this situation?

[clsid2]

You can try this hidden option:

HKEY_CURRENT_USER\Software\MPC-HC\MPC-HC\Settings
DesktopSizeBackBuffer = 1

If that doesn't work, then I don't have a solution for you. Stretching over multiple monitors is not really supported or tested.

[darthdragonhc]

Thanks for quick response.

Unfortunately changing this key to 1 doesn't make any difference. I will do more testing later on.

This issue does not occur only on multiple monitors, but also on single one when resolution height or width is bigger than 3840 x 2160. For example this fullscreen on my 1440 x 2560 monitor:

[clsid2]

Problem might be related to your monitor being rotated.

Which video renderer are you using? The DesktopSizeBackBuffer option only applies to EVR-CP and Sync.

[darthdragonhc]

Thanks again for quick response.

I was using default MPC Video Renderer.

After quick testing I resolved my issue. Changing DesktopSizeBackBuffer to 1 and selecting Enhanced Video Renderer (custom presenter) works perfectly. If I only change video renderer subtitles looks good on one monitor, but multiple monitor stretch gives much worse result:

So both changes in combination does the trick.

Big thanks for help and good day.

[clsid2]

@Aleksoid1978
Any change of a similar option for MPCVR? To use desktop size for subtitle texture, so it can stretch across multiple monitors?

[Aleksoid1978]

@Aleksoid1978 Any change of a similar option for MPCVR? To use desktop size for subtitle texture, so it can stretch across multiple monitors?

DX9/DX11 ?

[clsid2]

He was probably using DX11.

I was thinking, maybe compare video size with backbuffer size of Surface9SubPic when rendering a frame. If video becomes larger, then re-init Surface9SubPic.

[Aleksoid1978]

MPC VR knows nothing about backbuffer size of Surface9SubPic. It's create D3D9 surface of size of current screen + D3D11 texture for share between D3D9/D3D11.

[Aleksoid1978]

If use Direct3D9 ?

[clsid2]

This might be fixed in MPC-HC 1.9.22 in combination with recent MPC VR development build:
https://disk.yandex.ru/d/X0EVMKP4TcmnHQ

[dlong500]

@clsid2 Does the MPC VR development build require separate installation or is it included with MPC-HC 1.9.22? I'm using MPC-HC 1.9.22 and have a similar issue with subtitle stretch (or just not appearing at all) except that I'm NOT using any odd orientation. I have a 2560 x 1440 monitor, and when I go to full screen with a 1920 x 800 video I get portions of subtitle that don't show at all (when it would be a single line) and portions that stretch (when the subtitle is multi-line). It shows correctly when not in full screen.

What's odd is that I haven't ever noticed anything like this before over many, many years. That's making me wonder if something changed in a recent version, but I can't be sure without doing some testing on older versions.

[dlong500]

Well, I thought I'd determined that it was a regression in the latest version after testing out some older versions without experiencing the problem, but then I tried 1.9.22 again and did not experience the problem. Could opening previous versions have somehow changed any settings?

[clsid2]

To reset to defaults:
Options > Miscellaneous > Reset

MPCVR is a separate install.