pixel aspect ratio

[Rafael Amador]

If you want SD PAL 4×3 you should set your AE composition D1/DV 720×576. Those are NOT square pixels.
Then you got two possibilities for your PHS graphics:
– Make your graphics 768×576 and, in AE, set “Interprete footage” to SQUARE PIXELS.
-Make your graphics 768×576. Before to export to AE change the size to 720×576. Import to AE and set Interprete footage” to D1/DV Pixels.
like that they will be OK.
The same process you have to do when making 16×9 graphics, but instead of “768” set “1024”. And choose PAL D1/DV Widescreen 720×576 in the composition and in the “Interprete footage”.
Salud,
rafael

[Anna Kelly]

thank you

[Steve Roberts]

For Standard Definition (4:3):
Work in Photoshop in 768×576.
Import the Photoshop graphics into AE, interpreting as square pixels **since that’s what they are**.
Set your AE comp to the PAL SD 720×576 preset as rafalaos suggested.
Drag them into that AE comp, and they will automatically be adjusted to fit.
Do your work.
Render the AE comp.

For widescreen:
Work in Photoshop in 1024×576 as rafalaos suggested.
Import the Photoshop graphics into AE, interpreting as square pixels **since that’s what they are**.
Set your AE comp to the PAL widescreen 720×576 preset as rafalaos suggested.
Drag them into that AE comp, and they will automatically be adjusted to fit.
Do your work.
Render the AE comp.

You should only work in Photoshop in 720×576 if you are working in *non-square pixels* in recent versions of Photoshop. This can be set when you create the Photoshop document.
You should interpret a square pixel image as square pixels if you want it to look correct.

[Roland R. kahlenberg]

For non-square output I have a preference for working in square pixel comps throughout except for the finl step before rendering. It is only then that I nest my square-pixel comp into the required non-square equivalent.

Take note that not all plugins are non-square savvy – another reason to always work in square pixel comps.

HTH
Roland Kahlenberg

https://www.broadcastGEMs.com – AE Project Files
https://www.myspace.com/rorkrgbspace

[Steve Roberts]

[RoRK] “Take note that not all plugins are non-square savvy – another reason to always work in square pixel comps.”

Now there’s a red flag. Thanks, Roland.

[Adam Alphin]

I think that I am dealing with the same issue. I am trying to composit HDV video with a 3D render (output as an image sequence) that came from Maya as 960 x 720, square pixels. When I bring it into the comp, its resolution seems less than it should be. I wonder in the animation was rendered at the wrong size. What should the rendered footage’s size be to composit it with DVCPRO HD 720 (1.33) with a pixel aspect ratio of 1248 x 702?

[Roland R. kahlenberg]

I’ve not worked with HDV but I do know that HDV is 1440×720 with a PAR of 1.33. On occasions like these, it’s best to work with a single image with a perfect circle from the start of the pipeline and on to tape, for final delivery. If the circle looks perfect from the start and at the end then all systems are in sync.

Good Luck
Roland Kahlenberg

https://www.broadcastGEMs.com – AE Project Files
https://www.myspace.com/rorkrgbspace