i want output video in 16:9..how?


i’m looking for and long time but i’m not resolved my problemm… i did reseach but not found…

my video is pal 16:9 and use in VSE and output PAL 16:9 ( render animation, preset: tv pal 16:9)
and output AVI -RAW, but after output video is 4:3 and not 16:9 why?
where is my wrong???

thank you
my blender is 2.63, opensuse 12.1

In the Properties window, click on Render (camera icon) and look under the Render Presets drop-down. Anything starting with HDTV is 16:9; there are also a couple further down the list that have 16:9 in their names.

PAL 16:9 is anamorphic. That is, it is rendered out as 720x576 (which is basically 4:3), but the pixels when displayed on a PAL tv will be stretched to be the equivalent of 1024x576 (which is 16:9). This why your image looks stretched.
So Blender’s PAL 16x9 is correct. (if you look at the aspect ratio fields, you will see they reflect this.)

Only use this preset if you’re making graphics for final output to TV. Otherwise I suggest you select one of the HDTV presets.

hello see my screenshot (attach) so you will undy what is problem ok?
i did rended f12 see there is different…then what is resolve this problem?


There’s nothing wrong with the output, the image editor is just interpreting it (incorrectly) as being square pixels.

i did render output video is bad 4:3 and i want 16:9…how?

As it seems there’s not only a technical incomprehention but also a language barrier, I will try to make it as easy as possible:

Blender is doing everything right, you don’t understand some things.

Image Aspect Ratio != Pixel Aspect Ratio != Broadcast Viewing Ratio

torageAspectRatio * PixelAspectRatio = DisplayAspectRatio
PAL is an analog technology, and meant for analog devices.

SAR is always 5:4 which is 720x576 - that’s what PAL is
PAR for PAL 4:3 is 12:11
PAR for PAL 16:9 is 16:11

PAL 576i 4:3
Resolution = 720x576 -> SAR = 5:4
PAR = 12:11
Equivalent square-pixel resolution = 786x576 because 720*(12/11) = 786
A TV image shows the center 704 pixel, not the full 720 pixel, thus resulting in an TV resolution of the known 768x576 because 704*(12/11) = 768

PAL 576i 16:9
Resolutoin = 720x576 -> SAR = 5:4, nothing changes.
PAR = 16:11
Equivalent square-pixel resolution = 1048x576 because 720*(16/11) = 1048
And again, the TV image shows the center 704 pixel, resulting in 1024576 pixel image as 704(16/11) = 1024

This is what anamorphic is. Depending on what SAR and PAR you have, the receiver in your TV knows how to stretch the image and the 5:4 PAL stream is displayed as 4:3 or 16:9 image.

The TV signal is broadcast digitally and the 8 pixel strips on each side (720-2*8=704) are for nominal analogue blanking and are discarded. It’s an old technique and has to do with the horizontal blanking interval of a TV.

To be blunt, a todays kid will prolly neither know about it, nor need it as old tube TVs are pretty much a dying kind.
The only thing where this is still a topic is for DVD authoring as it contains either a PAL or NTSC stream.

HDTV 720i/p and 1080i/p are non anaglyphic and have a PAR of 1:1, so there are no problems and what you see is what you store and what you watch.

This should be a sticky, people should know this :smiley:

I hope all the info is accurate, after all I might recall stuff wrong, and if so, freen or other watchful eyes surely can point out flaws in that short travel to gramps days of video :smiley:

i resolved, how? set render size it’s was 1024*576 and output is FINE, but thank from here post:all users here posts!!!
thank you

Some professional editing programs have the ability to display at least an approximation of what the output would look like on PAL and NTSC analog devices. They’re also generally pretty good at generating outputs that are appropriate for these devices, given a high-definition (and square-pixeled) input.

But, alas, that’s the good news.

When you shoot for analog-device output, there are two things that will really bite you in the creative asterisk: (1) the aspect-ratio, which determines the horizontal vs. vertical “shape” of "what you have to care about; and (2) the fact that almost all of your usable image area is gone, and what’s left is pudgy and has hideous (lack of) color resolution. I find that you really do have to plan the whole production “with both arms firmly tied behind your back,” because that’s all that the hardware can do.