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compositelab rendering - how do I retain widescreen?

Posted: Mon, 31st Aug 2009, 2:56am

Post 1 of 4


Force: 0 | Joined: 19th Aug 2009 | Posts: 1


hi, im new to edition and i have one simple question.
my movie is 1440*1080 and i have another movie with the same resolution for background.
i use keying options to merge the 2 movies but after rendering my final project is in 4:3 instead of 16:9 like the 2 original movies, why?

i ask this because i edit it with pinnacle studio and my project is in HD 16:9

thanks for any valuable input.
Posted: Mon, 31st Aug 2009, 3:49am

Post 2 of 4


Force: 1956 | Joined: 24th Jun 2008 | Posts: 1357

VisionLab User VideoWrap User FXpreset Maker Windows User FXhome Movie Maker

Gold Member

Make sure your render settings are the same as when you imported your video clips.
Posted: Mon, 2nd Nov 2009, 12:56am

Post 3 of 4


Force: 400 | Joined: 20th Oct 2007 | Posts: 2

CompositeLab Pro User

Gold Member

What codec do you use for rendering? If you used the DV-codec, try out any other codec.
Posted: Mon, 2nd Nov 2009, 7:25pm

Post 4 of 4


Force: 2225 | Joined: 5th Nov 2006 | Posts: 300

VisionLab User VideoWrap User Windows User

Gold Member

This is not as bigger problem as you think....I also use 1440 x 1080 compressed using Cineform codec. The only difference between this resolution and full HD @ 1920 x 1080 is the pixel aspect ratio

1920 x 1080 has a pixel ratio of 1.0 (square pixels to you and me)

1440 x 1080 has a pixel ratio of 1.33 (rectangle pixels)

With ref to a HD TV screen - Because the 1440 res is not as wide as a full 1920 HD screen each pixel going across the screen has to be horizontaly stretched by a third = 1.33 instead of 1.0 to fill up the whole screen.

If you load your 1440 clip into FXhome products make sure to set the projects pixel ratio to 1.33 and check any new clips you load to 1.33 too.

If you were to render any output from the Lab products to standard DV Widescreen (pal or ntsc) then a tag is added to the file to inform other software that the vid should be displayed in widescreen (16:9 IMAGE aspect Ratio)). In the 1440 res this does'nt happen for some reason, but, so long as you set up your pinnacle studio project as 1440 x 1080 with pix ratio of 1.33 then all should be displayed correctly as a widescreen (16:9) image at the end.

Hope this helps