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Huh? Footage interpretation? Collapse transformations? You are definitely doing something wrong somewhere. Possibly AE is simply misinterpreting your images as being HDV sources and separating fields.
Are you able to post an example project somewhere that we can have a look at? This is not normal behaviour.
it seems maybe something to do with open GL - i thought i just had it selected for previews in the prefs, but have discovered the rendering plugin selector in the composition settings dialogue box "advanced" tab. i'm sick of time-consuming experiments, but at the moment it looks as though selecting "advanced 3D" instead of "open GL hardware" may resolve this problem.
there is something strange about 1440X1080 - i tried making a composition this size (with pixel aspect ratio 1.33, via the preset) but it appears incorrectly on the monitor - looks like 4:3 and a DSLR pic 3072 wide gets squashed up sideways in the display even tho' the interpretation is correctly set. the same reduction in resolution can be observed when "openGL" is selected as the rendering plugin for the composition (it seems to be the default setting). here too the resolution can be fixed by choosing "advanced 3D" as the rendering plugin instead. but the picture remains compressed sideways.
is this a software or a hardware problem?
note: i have a NVIDIA Quadro FX 3450/4000 SDI. the display normally shows circles as round.
Click the Pixel Aspect Ratio Preview button.
never noticed it before - thanks for your help