yup ... I realise that 4K and 3D are incompatible lol
the problem now with latest MC, latest Windows 10 (aka FCU), latest NVIDIA drivers ... automation to switch different profiles in MadVR seems impossible atm
not really ... I can get it working but 2D will be displayed in D3D9 windowed mode ... which I understand is limited to 8 bit ... as I understand 10 bit needs D3D9 exclusive or D3D11 exclusive/windowed
4K exclusive (D3D9 or D3D11) just doesn't work atm ... black screen that puts MC in a state that requires its restart (after movie stops ... last screen shot of movie is stuck on top of MC)
only option is D3D11 windowed ... but it crashes MC if 3D is enabled in NVIDIA control panel
3D on other hand requires exclusive and 3D enabled in NVIDIA control panel
so trick is to set up profiles in MadVR for 2D and 3D ... part i am stuck on is toggling NVIDIA 3D setting from MadVR ... i see 2 ways of doing this (both do not work):
1. madVR->rendering->stereo 3D ... when play 2D content disable os stereo 3d support ... when play 3D content enable os stereo 3d support
in FCU ... this changes Windows [Display setting] 3D display mode ... which should set corresponding value in NVIDIA control panel ... it does turn off NVIDIA 3D setting when needed, BUT it does not (or cannot) turn it on ... so essentially you end up with [Displa setting]->3D "on" and 3D seiiting in NVIDIA control panel "off"
when 3D movie plays on [Display setting] 3D "on" but NVIDIA 3D "off" it plays it in 1080p exclusive D3D11 (3D) ... but no 3D signal is send to TV (when switching TV to 3D it ask if want to convert 2D to 3D ... aka TV receives only 2D signal)
This is obviously problem with NVIDIA driver (I did send a bug report/feedback to them today)
2. when creating profile for rendering 2D (Direct 3D 11) and 3D (exclusive) ... there is option in madVR to execute command line when profile is enabled
and NVIDIA provides command line to switch its 3D mode ... C:\Program Files (x86)\NVIDIA Corporation\3D Vision\nvstlink.exe /enable (/disable) ... it works like a champ setting corrently 3D setting in NVIDIA and in Windows [Display settings]
BUT unfortunately this MadVR feature does not work ... and seems from some time too (
http://bugs.madshi.net/view.php?id=210)
... so atm no 10 bit 4K for me ... its properly working 3D and 8bit 2D (windowed D3D9) ...