Devices > Video Cards, Monitors, Televisions, and Projectors
madVR tweaking
kstuart:
I use a Radeon 6450 and get excellent results with madVR and ROHQ, it is just a matter of the settings.
After fiddling a lot, I found that for chroma upscaling "Bicubic 75 w/Antiringing" was a the best compromise of GPU use and quality. The chroma upscaling feature is one of the better visual improvements, IMHO.
Then just use different profiles for image upscaling, and use If Then Else to select them.
As Hendrik mentioned, you definitely want "Hardware decoding" in MC20 to be off, it is not necessary, and it just overloads the GPU.
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BTW, you did not mention the resolution of your display. If it is also 1080p, then that should be easy for your GPU, because there is no upscaling or downscaling of the 1080p. If the display is not 1080p, then you would need to have madVR use a less demanding algorithm.
However, sometimes so-called "1080p" videos are actually 1072p or 1076p, which will then create huge demands on the GPU even if you have a 1080p display. Use MediaInfo to check the actual resolution of the videos.
(I've asked madshi to implement an option to not scale if the video is only a few lines difference from the display resolution, but I don't think that has gotten near the top of his priority list.)
sj1201:
Oh, sorry, my display is also 1080p, I forgot to mention.
Can you tell me a little bit more about the if then else option how this works?
Is it possible to use this option to use different settings for different frame rates like 1080p@24Hz or 1080p@60Hz?
sj1201:
Hello again,
quick update, it seems with some change of the setting I get GPU load of about 33% it seems now working fine.
But I think the more important thing to fix the issue was increase the fan speed of my graphic card with msi afterburner.
Even if the GPU load was acceptable the HTPC crashed as soon as the GPU temperature reached 52-53°C, which is typically no high temperature, but however with now having the GPU temperature below 50°C because of higher fan speed I got no crash anymore.
Jonas
kstuart:
--- Quote from: sj1201 on March 27, 2015, 02:29:24 pm ---Oh, sorry, my display is also 1080p, I forgot to mention.
Can you tell me a little bit more about the if then else option how this works?
Is it possible to use this option to use different settings for different frame rates like 1080p@24Hz or 1080p@60Hz?
--- End quote ---
Search for 6233638's thread on madVR settings (search this Forum for "madvr", with "Titles only" checked, and all sub-forums included).
JimH:
Why not use Red October HQ without any modifications?
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