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720 tiff’s displaying pillar boxed – why?
I’ve edited soem 4:3 PAL footage in Vegas, then rendered out as uncompressed 720×576 quicktime. This render looks correct. I then ran this thru After Effects and rendered as a 720×576 tiff sequence. I then made changes to these tiffs in photoshop and saved all of them out again as 720×576.
I want to now put them all back together in Vegas but when I bring them all back into a 720×576 PAL project I get pillar box bars at each side. Everything has been 720×576 at every step so I dont knwo why I’m getting this. I tried doing some tests and rendered out from After Effects as 768×576 and these display fine in Vegas.
Will I have to do them all again at 768 or is there another reason the 720 tiffs look wrong in Vegas?
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2 Replies
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You’re getting caught by the square vs non-square pixels issue. The 720 really should be 768 as you’ve discovered. However, you should still be able to use the 720 versions – just right-click the image, choose Properties, and then change the Pixel Aspect Ratio.
Edward Troxel
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Of course, the problem is that taking footage that was 720 and scaling it to 768 involves a quality loss.
Another workaround is to select one of those stills in the project media window, right-click on it, select “properties”, set the properties to PAL DV pixel aspect ratio and probably set the Alpha to premultiplied, then click the little tiny diskette icon next to the “Stream” dropdown to save this as the deafult profile for TIFFs.
Click OK to close the window.
From this point you probably need to restart vegas and maybe even re-import all those tiff files, but they’ll be “non-square” and you won’t have had to throw away picture data.
But wait! There’s another problem. Guess what provides the libraries for Vegas to handle TIFFs. Quicktime. And it does a really bad job. Many people have reported that projects with lots of tiffs hang or otherwise never finish rendering. If there’s any way you can export a PNG sequence Vegas will do much, much better because it doesn’t have to ask Quicktime what to do with each and every TIFF.
Rob Mack
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