On Render buttons, under Dimensions there are Resolution and Aspect Ratio settings. So what is the difference between Aspect Ratio (Pixel Aspect Ratio) of 1:1 and 100:100?
you mean resolution 100 % which is the render window size compare to the screen size !
happy 2.5
They give the same ratio so should be no different http://wiki.blender.org/index.php/Doc:2.5/Manual/Render/Video_output#Preparing_your_work_for_video
Ya ok. It is the same thing but there are documents telling you to do it one way or other you know. I tested it and it is the same thing.
it’s not the same thing
aspect is the ratio between X and Y or widht to height of the render window
resolution is the size of the render window on the screen !
but you can also change the render size with the scroll wheel which overides the resolution in render panel
so be carefull with that zoom factor !
happy 2.5
What? No…
Pixel aspect ratio has nothing to do with the render window… It is the shape of the pixels. 1:1 (or 100:100, 234:234 etc) means square pixels, 2:1 would mean pixels twice as wide as they are high. This is used by different formats to squeeze 16:9 (or other wide screen content) into a 4:3 resolution.
Yes that is where it is coming from. But the whole notion is little strange you know; stretch a pixel to fit the screen. Shoot normal banana, squash it shorter in pixel, and then expand the pixel longer so that it looks normal again!
sorry but pxiels are physical shown on the screen and you cannot change this size!
only thing you can do with scale X Y is to change the render size of the window in the sense that you can render with 400 X 200
larger then higher and blender will in this area change the scale of the image but not change the physical size of pixels!
hope you get the idea here of what it does !
happy 2.5
Actually you can change the size of the rendered pixels. Pixel aspect ratio on CRT are usually close to 0.9:1 in which the pixels are physically rectangular or slightly taller than wide. LCD screens and traditional CRT monitors have a pixel aspect ratio of 1:1 or physically square. It depends upon the type of media in which you wish to display your content that determine pixel aspect ratio.
Frame or display aspect ratio is the overall size ratio of the display such as 4:3 and 16:9 respectively and are independent of pixel aspect ratio. Now-a-days there are more and more flat panels in use so the display aspect ratio is 16:9 while the pixel aspect ratio is 1:1. The percentage of the display in Blender is a percentage of the total display size and the pixel aspect allows you to define the pixel size depending on the media it will be displayed.
Most of the time, the display systems you’ll be dealing with are square-pixel and high-res.
If you do find yourself generating output for an analog (e.g. NTSC) display system, you can probably arrange for the necessary post-processing to be done in a straight video-editing program.
The different aspect (shapes of) pixels was created for 2 reasons. Display construction (the shape of the little dots on a CRT/TV) and as a compression technique to get Widescreen TV pictures.
Anamorphic images which have extreme stretching, typically are 1.33:1. This allowed Standard definition TV cameras (recording 720pixels across) to make widescreen images (pseudo 1024pixels across). All you had to do was squash the recording into Standard definition, then expand it again at the TV or display end.
Both types of aspect correction are legacy I’m afraid. It depends on what you expect to mix your Blender animation with.