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Ein Übersetzungsproblem melden
That's nice:
http://en.kioskea.net/faq/1888-what-is-upscaling
Looks like I have the right definition to me.....
Okay... so when we take say a broadcast 640 x 480i image and display it on our nice 1920 x 1080 HDTV what are we doing with it exactly? Are we just going to have it occupy a quarter of the screen and leave big black bars all around it or are we going to "stretch" it out a bit?
Upscaling is stretching. It might involve a bit of deinterlacing and some filters designed to try and remove the artifacts you get as a result of uneven pixel ratios between the source and target resolutions but it is, ultimately, stretching.
External resolution.
Okay... let's go with a hypothetical here. Say my game engine uses no textures whatsoever, we just have nice gouraud shaded polygons. If I have it running with a 1920 x 1080p frame buffer is it "native 1080p" or not?
From your article -
"When you are watching a DVD movie on a HD (high definition) screen, there can be image resolutions problems. The video resolution (number of pixels) on DVD SD (standard definition) is lower than the HD screen. For optimum performance, you can convert files to high definition. This is called upscaling (basically changing the dimensions of the image). "
"Changing the dimensions of the image" = stretching.
Did you even read your own link?
Open a 720p image or video file on your desktop. Now stretch it to fill your entire screen. That is upscaling. The image is still 720p, you can't add detail that wasn't there to begin with. It's just occupying a 1920x1080 screen area (assuming that is the monitor's resolution).
Your example of emulators is irrelevant. Almost all older games especially ones that used sprites used a fixed width / height in pixels for art assets, completely different to the way all modern games are rendered.
You've linked us to nice website with pretty words. But it doesn't look like you fully undesrtand what the article is trying to tell you.
Stretching often make the scene look fat if the image is 480p (a square) and you are stretching it to your 720p/1080p (rectangle) screen.
Upscaling is taking the image that was rendered at a low rez (ps1 game for example) and you are increasing the internal rez to make the game not be pixelated so that you won't have need for the bilinear filtering that accompanied the low rez game in every single game before the ps3's birth.
You do realize that some dvd players and the ps3, etc. have the upscale option for older gen games/movies right? So how could it possibly be the same as stretching....
Don't confuse me for yourself :P
Stretch: https://imagizer.imageshack.us/v2/1356x763q90/585/7xkv.jpg
Upscale: https://imagizer.imageshack.us/v2/1356x763q90/513/dq0z.jpg
You've got to be a complete imbecile to not understand now.
The examples don't even use the same aspect ratio, good job.
Upscaling does not increase the internal resolution at all, the exact opposite. The internal resolution stays the same, it is just being displayed on a screen resolution that is higher than it.
Based on your definition of upscaling, someone should be able to put a 480i input into a dvd player and have it come out with the same quality as a bluray movie. No.
..........THAT'S WHAT UPSCALING MEANS.......................................
The dvd upscaling feature tries to add more pixels by using filtering. Since it is video and not individual 3d models, this is how it tries to do it.
I can set BF4 to display 1080p on my monitor, but have it rendered at 720p. The world is rendered at 720p but then upscaled to display at 1080p.
Quote: Genome: "That's simply called running the game at a higher resolution".
..........THAT'S WHAT UPSCALING MEANS.......................................
The dvd upscaling feature tries to add more pixels by using filtering. Since it is video and not individual 3d models, this is how it tries to do it.
THE WIIU UPSCALES WII GAMES IF YOU TELL IT TOO. IT IS UPPING THE RESOLUTION. BECAUSE THAT IS WHAT IT MEANS. PS3 CAN DO THE SAME THING WITH PS1 GAMES.