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Old 4th June 2015, 10:29   #30721  |  Link
James Freeman
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Can anyone please suggest a proper shader to correct white balance?
I need to tweak R,G,B Levels (not Contrast, Brightness or Gamma) to correct LED projector extremely blue light source in software.

The hardware color correction is extremely poor and leaves an uneven colorful (red and blue) gradients, so it is unusable.

Thank you.
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Old 4th June 2015, 10:56   #30722  |  Link
nevcairiel
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Use a 3DLUT for correction.
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Old 4th June 2015, 11:18   #30723  |  Link
James Freeman
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Quote:
Originally Posted by nevcairiel View Post
Use a 3DLUT for correction.
I need a quick white balance fix without calibration.
I wonder why madVR hasn't got an R,G,B sliders if it does have Contrast, Brightness, etc..

Maybe I can quickly lower the Blue and raise the Red via YCMS?
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Last edited by James Freeman; 4th June 2015 at 13:01.
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Old 4th June 2015, 15:28   #30724  |  Link
shaolin95
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Quote:
Originally Posted by AngelGraves13 View Post
Isn't 23Hz NVIDIA's 23.976 mode? It works perfect on my end.
When you say perfectly, what is your 1 frame repeats every X showing?
I am curious as I was not using Reclock so the best I could get was it repeating anywhere from 30minutes to over a few hours (changes often) but using 47.952. WhenI tried 24 or 23.976, the repeat frame was like every few minutes.

Of course with reclock its rock solid but I am not sure how much damage reclock is doing to the audio etc. |
What will be considered a GOOD rate for the 1 frame repeats ?


Also, not sure if it was reported but when using the 64 bit of madvr, if I use NEDDI3 the screen is just black. Lancz and others work fine.
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Old 4th June 2015, 15:49   #30725  |  Link
Qaq
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Quote:
Originally Posted by James Freeman View Post
I wonder why madVR hasn't got an R,G,B sliders if it does have Contrast, Brightness, etc..
Years ago I tried to play with Hue and got banding...
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Old 4th June 2015, 15:53   #30726  |  Link
James Freeman
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Quote:
Originally Posted by Qaq View Post
Years ago I tried to play with Hue and got banding...
The banding era is long gone.
A simple R,G,B sliders are hard to find... MPC-HC, MadVR, Shaders... nothing...
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Old 4th June 2015, 15:56   #30727  |  Link
sneaker_ger
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There's a hue setting in madVR's device properties (under "color & gamma").
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Old 4th June 2015, 16:03   #30728  |  Link
James Freeman
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HUE has no effect on Luma.
I need actual RGB sliders like in a TV for software white balance adjustment.
Any help?

Sorry for the non madVR related question, but I hope madshi would be able to implement these simple R,G,B sliders in the Color & Gamma section of madVR.
I ask because many TVs color management is a complete rubbish;
The simplest color temperature adjustment results in a a rainbow greyscale...
So my goal is to keep the hardware at Standard (50,50,50) where the greyscale is uniform (native light source), and change the temperature via software.
Oh yes, without using 3DLUT or calibration, just by eye.
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Last edited by James Freeman; 4th June 2015 at 16:12.
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Old 4th June 2015, 16:39   #30729  |  Link
har3inger
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Most GPU driver control panels offer those settings. Have you tried there already?
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Old 4th June 2015, 17:21   #30730  |  Link
nikola
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Quote:
Originally Posted by James Freeman View Post
HUE has no effect on Luma.
I need actual RGB sliders like in a TV for software white balance adjustment.
Any help?

Sorry for the non madVR related question, but I hope madshi would be able to implement these simple R,G,B sliders in the Color & Gamma section of madVR.
I ask because many TVs color management is a complete rubbish;
The simplest color temperature adjustment results in a a rainbow greyscale...
So my goal is to keep the hardware at Standard (50,50,50) where the greyscale is uniform (native light source), and change the temperature via software.
Oh yes, without using 3DLUT or calibration, just by eye.
There's no panel on the market that can do this, i.e. no panel with absolutely linear response on the red/green/blue channels. If you alter R/G/B balance to hit a certain color temperature, you'll only hit it at a specific saturation for each channel, while increasing the mismatch outside your target saturation.

That is why you'd need a LUT - to compensate for the mismatch due to the non-linearity of panels.
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Old 4th June 2015, 17:22   #30731  |  Link
karamancho
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whats the proper way to diagnose a problem?

the fullscreen exclusive mode wont play nice on my PC no matter the setting

in windowed mode everything works fine and I get around 30% GPU utilization.

in FSE mode I get

decoder queue 14-17/16
upload queue 5-8/8
render queue 5-8/8
present queue 1-8/8

and around 35% GPU utilization.

changing scaling algorithms doesn't change those numbers.

win 7 ultimate, nvidia geforce 210, driver ver. 341.44

how can I identify the problem?
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Old 4th June 2015, 17:24   #30732  |  Link
huhn
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do you use d3d9 old/new or overlay FSE?
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Old 4th June 2015, 17:38   #30733  |  Link
MysteryX
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Quote:
Originally Posted by nevcairiel View Post
madVR is a video renderer, you cannot ever use it from AviSynth.
I had asked about SuperRes on the AviSynth forum and someone said that many years ago someone wrote an AviSynth filter to use a Shader, and SuperRes is a shader.

However, that was old code and won't work until someone invests time in getting it to work. Or, until someone rewrites SupresRes for AviSynth.

So, is there such a big difference between the way madVR is programmed and what AviSynth requires?

Last edited by MysteryX; 24th June 2015 at 06:07.
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Old 4th June 2015, 17:45   #30734  |  Link
karamancho
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Quote:
Originally Posted by huhn View Post
do you use d3d9 old/new or overlay FSE?
in the OSD it says "D3D9 exclusive (new path)"

how can I switch to other FSE modes?
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Old 4th June 2015, 17:55   #30735  |  Link
huhn
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Quote:
Originally Posted by karamancho View Post
in the OSD it says "D3D9 exclusive (new path)"

how can I switch to other FSE modes?
rendering -> exclusive mode settings-> disable "present frames in advance" for old FSE mode.

you find overlay mode under general settings and you can disable FSE mode there to if you have problem with it.

i my personal experience overlay works best.
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Old 4th June 2015, 18:00   #30736  |  Link
karamancho
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Quote:
Originally Posted by huhn View Post
rendering -> exclusive mode settings-> disable "present frames in advance" for old FSE mode.

you find overlay mode under general settings and you can disable FSE mode there to if you have problem with it.

i my personal experience overlay works best.
overlay mode didn't change anything.

old FSE mode works the queues are full
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Old 4th June 2015, 18:05   #30737  |  Link
huhn
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Quote:
Originally Posted by karamancho View Post
overlay mode didn't change anything.

old FSE mode works the queues are full
there is no FSE overlay mode my mistake.
you have to disable FSE and leave present frames in advance active to use it.

but who cares as long as old FSE mode works.
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Old 4th June 2015, 21:26   #30738  |  Link
Asmodian
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I like overlay myself, it responds a little slower in some situations but is reliable and doesn't need to switch in and out like FSE. It also allows madVR to control all aspects of a calibration for higher quality when using a monitor profile in Windows.

You do need FSE disabled to use overlay in full-screen but it doesn't need present frames in advance checked (or not checked), it uses the number of back buffers set in the windowed page with "present frames in advanced" unchecked but it will use them even if "present frames in advance" is checked.
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Old 4th June 2015, 21:43   #30739  |  Link
huhn
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not 100 % true.
http://bugs.madshi.net/view.php?id=271

and on my windows 10 system i get "~my driver doesn't overlay" when i disable present frames in advanced for window mode.

just activated present in advanced and it will work on nvidia and intel
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Old 4th June 2015, 22:27   #30740  |  Link
Asmodian
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How odd, Windows 10 is weird.

Does it use the number of buffers set when "present in advance" is enabled? On Win 8.1 Overlay reports "back buffers" in the OSD and uses the number from the page when "present in advance" is disabled. Overlay works either way on Win 8.1 x64.
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