low quality at certain cutscenes on gamecube and wii games

[Japex4sp]

Whenever i play a game for example mario sunshine, and a cutscene starts playing the quality goes down really hard and thats not good. But it also only happens on storyrelated cutscenes and not on the ones you see when entering a stage if you know what i mean. On games like just dance the menu looks good but when you start to dance the quality is also really bad. Does anyone have a fix? Because outside of the cutscenes the game is on full speed. Also also tried doing some stuff in the configuration and graphics. Still the same.

[JosJuice]

Those videos are pre-rendered and cannot be improved.

[Mxyl V]

I've noticed that the issue doesn't appear in all games--while most game cutscenes look quite pixelated for me on larger screens, Brawl's Subspace Emissary videos look great (in a DVD kind of way).  Is there an algorithm that could stretch, fake-anti-alias or smooth out videos to look better at larger resolutions as SE appears to do, or would that ultimately depend on the quality of the cutscenes themselves?  

[JosJuice]

I think the Subspace Emissary just has higher quality video. It's not impossible to do some post-processing, but I can't imagine it would let you increase the perceived quality by any large amount.

[themanuel]

Yeah, quality of pre-rendered videos varies a lot. Take a look at the Soul Calibur II introduction for an example of a top quality intro video.

[eckso]

I remember when this happened about 4 years ago, expecting nowadays it would be solved, I mean it's basically a bilinear filter. Has an issue been opened for this? I tried searching but didn't find anything.

[JosJuice]

(04-03-2019, 12:15 PM)eckso Wrote: I remember when this happened about 4 years ago, expecting nowadays it would be solved, I mean it's basically a bilinear filter. Has an issue been opened for this? I tried searching but didn't find anything.

Dolphin is already using "basically a bilinear filter" when upscaling. Like I said before, you can't increase the quality by any large amount by post-processing, so if you open an issue for it it's just going to be closed.

Is there any particular significance to the 4 years figure? This has been a problem for forever, unless you're thinking of a different problem than me.

[eckso]

I guess there's not an issue open for it then? The pixelation is there. The fact that bilinear is being applied might mean it's not correctly applied. If you upscale a pixelated image with a bilinear filter the effect remains, it has to be applied to native resolution in order to work.

[JosJuice]

No, there's not an issue open.

Are you sure that the problem is not macroblocking? There is an important difference between that and issues on the level of single pixels.

[twotonkatrucks]

(04-03-2019, 03:37 PM)eckso Wrote: If you upscale a pixelated image with a bilinear filter the effect remains, it has to be applied to native resolution in order to work.

??  this makes no sense.  why would anyone resize to some intermediate size before resampling?