posted by Barc0de on Aug 20, 2008:
are there any technical or quality advantages in rendering (native) 1080p over 720p upscaled to 1080p?
Technical comments would be mostly appreciated
1080p vs 720p upscaled rendering advantages
1080p vs 720p upscaled rendering advantages
posted by EvilWays on Aug 20, 2008:
I guess you wouldn't notice much of a difference with the upscaling with quality TV or monitor (I'm guessing since I don't know first hand...still use a TV for my PS3 for the time being and my 19" CRT monitor for the 360).
I guess you wouldn't notice much of a difference with the upscaling with quality TV or monitor (I'm guessing since I don't know first hand...still use a TV for my PS3 for the time being and my 19" CRT monitor for the 360).
1080p vs 720p upscaled rendering advantages
posted by Borman on Aug 20, 2008:
1080p native is pixel perfect, 1 pixel rendered = 1 pixel on the monitor. 720p upscaled finds fancy ways to enlarge the 720p image
1080p native is pixel perfect, 1 pixel rendered = 1 pixel on the monitor. 720p upscaled finds fancy ways to enlarge the 720p image
1080p vs 720p upscaled rendering advantages
posted by mairsil on Aug 20, 2008:
1920 x 1080 = 2,073,600 pixels
1280 x 720 = 921,600 pixels
While the aspect ratio is identical, you lose 44% of the total pixels going from 1080p to 720p. The biggest problem is the scaling itself, since each pixel rendered in 720p becomes 1.5 pixels when scaled up to 1080p. Obviously, you cannot render half a pixel, so there must be some form of interpolation done on the pixels. An additional problem is the native resolution of the display device. Some displays which take in a 1080p signal may actually have a native 720p output. In that case you would be up- then downscaling the image, losing detail each time.
A lot of people say that they do not see a difference between the two resolutions, but everyone is different. Personally, I see a huge difference between the resolutions when I work on something that I can control the original resolution. Of course, the 60" TV exacerbates the "problem". :icon_bigg
It entirely depends on your level of detail perception, the application and the hardware you are using. If you look at the pure numbers:
Barc0de said:
are there any technical or quality advantages in rendering (native) 1080p over 720p upscaled to 1080p?
Technical comments would be mostly appreciated
1920 x 1080 = 2,073,600 pixels
1280 x 720 = 921,600 pixels
While the aspect ratio is identical, you lose 44% of the total pixels going from 1080p to 720p. The biggest problem is the scaling itself, since each pixel rendered in 720p becomes 1.5 pixels when scaled up to 1080p. Obviously, you cannot render half a pixel, so there must be some form of interpolation done on the pixels. An additional problem is the native resolution of the display device. Some displays which take in a 1080p signal may actually have a native 720p output. In that case you would be up- then downscaling the image, losing detail each time.
A lot of people say that they do not see a difference between the two resolutions, but everyone is different. Personally, I see a huge difference between the resolutions when I work on something that I can control the original resolution. Of course, the 60" TV exacerbates the "problem". :icon_bigg
1080p vs 720p upscaled rendering advantages
posted by PhreQuencYViii on Aug 20, 2008:
Supposedly the 360's scaler is really good, so 720p>1080p is still good looking or something. I don't have 1080p so I dunno.
Supposedly the 360's scaler is really good, so 720p>1080p is still good looking or something. I don't have 1080p so I dunno.
1080p vs 720p upscaled rendering advantages
posted by Barc0de on Aug 20, 2008:
I m curious, since most if not all 360 software is natively rendered at 720p yet the ps3 can render 1080p natively for some games.
I m curious, since most if not all 360 software is natively rendered at 720p yet the ps3 can render 1080p natively for some games.
1080p vs 720p upscaled rendering advantages
posted by Jamtex on Aug 20, 2008:
Basically if your TV does 1080p then use 1080p, but make sure it has a 1080p resolution and doesn't just support 1080p. My TV does 720p natively but supports 1080i and 1080p, but although looks fine on anything moving it does look odd on things that are static like the PS3 menus.
Basically if your TV does 1080p then use 1080p, but make sure it has a 1080p resolution and doesn't just support 1080p. My TV does 720p natively but supports 1080i and 1080p, but although looks fine on anything moving it does look odd on things that are static like the PS3 menus.
1080p vs 720p upscaled rendering advantages
posted by Barc0de on Aug 20, 2008:
This is slightly off topic but what am I after here? How can one distinguish what sets support 1080p and what sets actually "do" 1080p in between the lines of all the marketing jargon?
I understand that "real" 1080p sets have 1920x1080 actual pixels on the set whereas the rest just downscale it to fit their 1280x720 actual dot matrix.
This is slightly off topic but what am I after here? How can one distinguish what sets support 1080p and what sets actually "do" 1080p in between the lines of all the marketing jargon?
I understand that "real" 1080p sets have 1920x1080 actual pixels on the set whereas the rest just downscale it to fit their 1280x720 actual dot matrix.
1080p vs 720p upscaled rendering advantages
posted by Borman on Aug 20, 2008:
Thats the big thing to look for, the actual resolution. Lots of LCDs arent even 720p, they have extra pixels and such so even they arent truly native 720p. Look for one thats 1920x1080 though, that should do the trick ;P
Thats the big thing to look for, the actual resolution. Lots of LCDs arent even 720p, they have extra pixels and such so even they arent truly native 720p. Look for one thats 1920x1080 though, that should do the trick ;P
1080p vs 720p upscaled rendering advantages
posted by mairsil on Aug 20, 2008:
Also be careful of the oddball displays that actually have a 1080 vertical resolution, but only a 14xx - 16xx horizontal resolution. I have only seen a couple, and usually this is a problem on low end high def camcorders, but it is still a problem. The best bet is to just find a decent review on the display as this is an item that usually is covered.
Also be careful of the oddball displays that actually have a 1080 vertical resolution, but only a 14xx - 16xx horizontal resolution. I have only seen a couple, and usually this is a problem on low end high def camcorders, but it is still a problem. The best bet is to just find a decent review on the display as this is an item that usually is covered.