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Old 30th January 2016, 09:34   #35701  |  Link
Sunset1982
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Originally Posted by bcec View Post
@madshi: I noticed that on my nVidia 980 Ti, 1080p frame packed 3D 23Hz translates to really ~23.000fps (so about every 3-4minutes there's a glitch). If I remember correctly, it was mentioned that madVR forces 3D 1080p at 23Hz. Is there a way to change that to 24Hz instead? Both are supported by nVidia at 1080p frame packed 3D, and 24Hz will be a lot closer to 23.976 than 23.

AFAIK, there doesn't seem to be a way to override/create a custom 3D resolution the same way it exists for non-3D resolutions.
That's exactly the same problem I have with my gtx 970. I hope madshi gives us an option to change between 23 and 24 hz in 3d modes.
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Last edited by Sunset1982; 30th January 2016 at 09:42.
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Old 30th January 2016, 10:17   #35702  |  Link
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Originally Posted by Shiandow View Post
the most sensible thing to do would be to not scale the chroma
why do you recommend not to (down)scale the chroma?
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Old 30th January 2016, 10:21   #35703  |  Link
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because it has the "correct" resolution already.
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Old 30th January 2016, 10:32   #35704  |  Link
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Originally Posted by huhn View Post
because it has the "correct" resolution already.
I dont understand. when the videos resolution is 4k, but your screen 1080p and the video gets scaled down to this, then the chroma already is 1080p? so why is there then the option in madvr to scale the chroma at all?

edit: actually its chroma upscaling...well Im lost.
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Old 30th January 2016, 10:59   #35705  |  Link
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read this: https://en.wikipedia.org/wiki/Chroma_subsampling

4:2:0 is used on DVD, BD and UBD. so the chroma resolution is 1/4 the luma resolution. 2160p = 1080p chroma.
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Old 30th January 2016, 11:57   #35706  |  Link
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Hello madshi and thanks again for your amazing work.

Could you put back the old version of finesharp?

Crispen edges is sometimes too much for my gpu.
I also still prefer finesharp result than crispen edges one alone.
However I didn't test to combine multiple sharpen shaders at once as my gpu is too limited.

Could you make the display modes generic for any display monitor like smooth motion?

In Kodi there is a option called "Adjust Display Refresh Rate" and this is an on/off button.
I think display modes is a very important thing and it should be simpler for novice people.
It would be great if madVR could automatically get available display frequencies and switch to the appropriated one.

Last edited by foozoor; 30th January 2016 at 12:00.
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Old 30th January 2016, 12:06   #35707  |  Link
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Originally Posted by foozoor View Post
Could you make the display modes generic for any display monitor like smooth motion?

In Kodi there is a option called "Adjust Display Refresh Rate" and this is an on/off button.
I think display modes is a very important thing and it should be simpler for novice people.
It would be great if madVR could automatically get available display frequencies and switch to the appropriated one.
a general just change option is pretty dangerous.

some(if not most) TVs have a broken 23/24p mode some can't deal with 50 hz well.

but he already said he wants to remade this part.

for the moment just add this:

1080p23, 1080p24, 1080p50, 1080p59, 1080p60

it doesn't matter if your screen doesn't support all of them.
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Old 30th January 2016, 12:16   #35708  |  Link
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Originally Posted by huhn View Post
some(if not most) TVs have a broken 23/24p mode some can't deal with 50 hz well.
How to know if it's broken or not?
And what to do if it is? Isn't smooth motion suitable for this special case?
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Old 30th January 2016, 12:36   #35709  |  Link
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How to know if it's broken or not?
And what to do if it is? Isn't smooth motion suitable for this special case?
yes smoothmotion is suitable in this case but you need custom display modes because 50p may work totally fine.

and if you want to fine out if 23p is broken on your screen either read tests or just look at it.

most TVs with a broken 23p mode do a 23p -> 59p conversation adding a 3:2 judder.
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Old 30th January 2016, 12:47   #35710  |  Link
Thunderbolt8
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Originally Posted by huhn View Post
read this: https://en.wikipedia.org/wiki/Chroma_subsampling

4:2:0 is used on DVD, BD and UBD. so the chroma resolution is 1/4 the luma resolution. 2160p = 1080p chroma.
hm so 4k downscaled to 1080p could look better than native 1080p, just because the chroma needs to be upscaled with native 1080p while it doesnt with 4k --> 1080p?
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Old 30th January 2016, 13:00   #35711  |  Link
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Originally Posted by Thunderbolt8 View Post
hm so 4k downscaled to 1080p could look better than native 1080p, just because the chroma needs to be upscaled with native 1080p while it doesnt with 4k --> 1080p?
in theory, yes.

but the is still the chroma subsample position problem.
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Old 30th January 2016, 13:11   #35712  |  Link
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Quote:
Originally Posted by huhn View Post
read this: https://en.wikipedia.org/wiki/Chroma_subsampling

4:2:0 is used on DVD, BD and UBD. so the chroma resolution is 1/4 the luma resolution. 2160p = 1080p chroma.
There's an exception: when crop black borders is active. Sometime it crops 1-2 lines and that triggers chroma upscaling even when the 'don't upscale when' option is set. So either it's a bug or ... It would be nice if madvr doesn't scale chroma at all in these kind of situations but I don't know whether this can be achieved.
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Old 30th January 2016, 13:21   #35713  |  Link
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There's an exception: when crop black borders is active. Sometime it crops 1-2 lines and that triggers chroma upscaling even when the 'don't upscale when' option is set. So either it's a bug or ... It would be nice if madvr doesn't scale chroma at all in these kind of situations but I don't know whether this can be achieved.
of cause it does. if you crop a picture you crop the chroma channel too.

if you crop by 1 pixel you need to first upscale the chroma.

it is still cropping the image but doesn't scale it anymore.
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Old 30th January 2016, 13:46   #35714  |  Link
Ver Greeneyes
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A question about the upcoming downscaler: does it support any (smaller) scale factor, or is it limited to 0.5x scale like the image doubling options? I often watch 1080p videos in ~720p so I can still multitask a bit, but I don't often go all the way down to 50%.

I also agree with the others that it would be nice if downscaling to 50% or below disabled chroma upscaling entirely and simply downscaled the luma channel to 50% instead - seems like that would reduce the overhead by a bunch for large videos. Even for scale factors slightly over 50% (but close to 50%), it might not be a bad trade quality option to downscale luma instead of upscaling chroma.

Last edited by Ver Greeneyes; 30th January 2016 at 14:18.
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Old 30th January 2016, 14:13   #35715  |  Link
huhn
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I also agree with the others that it would be nice if downscaling to 50% or below disabled chroma upscaling entirely and simply downscaled the luma channel to 50% instead - seems like that would reduce the overhead by a bunch for large videos.
if an image is scaled from 2160 to 1080p only luma is scaled.
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Old 30th January 2016, 14:19   #35716  |  Link
Ver Greeneyes
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Originally Posted by huhn View Post
if an image is scaled from 2160 to 1080p only luma is scaled.
Hmm, but not for smaller resolutions? I don't have any 2160p video, so I just tested scaling 1080p to 540p and the OSD seems to indicate it still scales chroma (then downscales).
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Old 30th January 2016, 14:25   #35717  |  Link
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i just scaled a 1080p video to 540p and the chroma scaling disappears. if it isn't perfectly scale down by 0.5 it is still scaling chroma.
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Old 30th January 2016, 15:03   #35718  |  Link
Ver Greeneyes
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i just scaled a 1080p video to 540p and the chroma scaling disappears. if it isn't perfectly scale down by 0.5 it is still scaling chroma.
That's odd. I explicitly selected 50% in the latest nightly of mpc-hc on a 1920x1080 video, and checked that the client rect size becomes 960x540, but the madVR OSD still says "chroma > super-xbr" and "image < Catmull-Rom AR". It also stays the same if I further shrink the window to 959x539. I'm using the latest madVR (v0.90.3) in d3d11 new windowed mode, 64-bit, tested on a 4:2:0 video, black bar detection disabled, no trade quality options checked, smooth motion enabled.

Last edited by Ver Greeneyes; 30th January 2016 at 15:22.
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Old 30th January 2016, 15:43   #35719  |  Link
DD51
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Please help..

I read the most I can to get 3D to work with MadVR.
No.1 thing I needed to do was go from Windows 7 to Windows 8.1 - DONE
After doing a fresh install of Win8.1 I installed:
MPC-HC 32 bit
MadVR 90.3
FFdshow...I used this for sharpening the image

Now I rip the 3D BRD to a MKV file using MakeMKV.
Launch the file and cannot get 3D to work - at all.

Videocard is HD7770
Crimson drivers 16.1 installed

3D works fine if using PowerDVD.

Really don't know what I'm doing wrong.

Many thanks in advance
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Old 30th January 2016, 15:47   #35720  |  Link
Della
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a general just change option is pretty dangerous.

some(if not most) TVs have a broken 23/24p mode some can't deal with 50 hz well.

but he already said he wants to remade this part.

for the moment just add this:

1080p23, 1080p24, 1080p50, 1080p59, 1080p60

it doesn't matter if your screen doesn't support all of them.
Pardon the novice question please.

But wouldn't choosing 25,29 and 30 where applicable (vice 50, 59 and 60) allow for more processing time between frames. Thereby allowing more aggressive MadVR settings?

Thanks
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