Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[jorsan]

Hi,
I just downloaded a HDR clip and tried all options under Madvr "HDR", but only get  the regular colors. I'm using a GTX 1060 card. What Im doing wrong? ... thanks in avdance

[thecrow]

What is your GTX 1060 connected to, and what are you expecting to see that you are not seeing?

[jorsan]

Thanks for your reply. About what I'm expecting to see is a video clip with the same colors that all HDR movies have. If I click ctrl+J in the first line there is no HDR mention, so I'm sure HDR content is not decoding.

About the "GTX 1060 corrected to" , don't undertsand, what do you need to know?

[RD James]

They're asking if you're connected to an HDR display.
You aren't going to get "HDR colors" without one.

[tij]

About what I'm expecting to see is a video clip with the same colors that all HDR movies have.

I assume you have HDR movies then that work correctly? And this video clip that you downloaded is playing with washed out colors (pale/unsaturated colors ... that’s what hdr looks like when no tone mapping is applied)

You sure downloaded clip has HDR ... use mediainfo to see tech info on downloaded clip and post it here ... maybe clip has no hdr

[jorsan]

You are totally right, the clip was labeled as HDR but was not. I downloaded other and works perfect ... well ... not totally perfect: HDR colors are there, but  is a 4K that is impossible to see: frames jumps a lot, the clip stuttered a lot. Is this related to HDR because consume lots of resources from the GPU (I'm using the "passthru" option in the MadVr settings), or would be other issue?, I reduced all upscale options to the minimun and the problem is the same, nothing changes.
Thanks again for your help

[tij]

If using MadVR ... press CTR+J to bring MadVR info ... take a photo of it and post it here

without seeing that info - difficult to say ... for 4K only upscaling involved (assuming you outputting to 4K screen) is chroma upscaling ... takes a lot of GPU to do that for 4K ... and if your clip is 60fps it can be very heavy workload ... still 1060 should be able to handle it ... but again - without seeing ctr+j it’s hard to say

[jorsan]

thanks for your reply. Will post photo this afternoon.

[jorsan]

Hi again, how can I take a picture of the debug OSD? is there a combination of keys to do it?
thanks

[fitbrit]

Just be warned that so-called HDR clips downloaded from YouTube, don't seem to play back in HDR at all in ROHQ - giving the washed out colours you see. In addition there's a 4K HDR 60fps clip out there called The World in HDR, and that is a real beast of a test clip. It doesn't use HEVC compression, so it is quite difficult to play smoothly with high MadVR settings.

[tij]

I usually use phone to take a picture of OSD (though I am sure there is key combination to take screenshot … just too lazy to find out what it is lol)

[jorsan]

This is the clip that I use: https://4kmedia.org/lg-cymatic-jazz-hdr-hlg-uhd-4k-demo/

I tried wiith Kodi and a build that someone create that includes the HDR option and works perfect. With JRiver, even with the red october standard (no MadVr activated) is impossible to watch without severe stuttering. Dont know if there is something that need to be deactivated to makeit work as it should. Pease see attached OSD
 

[Movieman]

Looks like your video card is configured for 8bit RGB.  Change it to 10 bit YCbCr422 10bpc and see if that makes a difference.  Also make sure your TV has wide color enabled on the HDMI port you are using.

Vern

[tij]

Don’t use YCbCr422 ... MadVR works in RGB ... outputting 422 downsampled chroma for outputting to TV ... so TV up samples it back to 444 ... whole point of MadVR is scaling/up sampling, so TV does not use its “arguably” inferior scaling/upsampling.

As I suspected video is 4K 60fps ... and you using NGU to upsample chroma (EDIT: NGU is one of highest quality algorithm but it’s the most complex one - meaning it uses lots of GPU power ) ... look at your rendering times around 60ms - too long for 60fps content (meaning your GPU cannot handle the algorithm you chose)

For 60fps ... rendering times should be below 1/60=0.016s=16ms ... in MadVR chroma upsampling ...choose simpler algorithm until rendering times are below 16ms (target at around 12ms to give some margin)

I will wright simple guide later for this

[tij]

As promised here is simple guide how to tune your madVR scaling

https://yabb.jriver.com/interact/index.php/topic,124136.0.html