Graphics Tearing

Kristian Lam
May 14, 2008 at 6:50 am

Hi Bruce,

When you mention graphics, are they generated from a plugin for stills on top of the video layer with alpha?

I’ve not come across this issue so it will be good to find out more information. For example, what kind of timeline is it? 10-bit PAL? 8-bit 1080i60?

regards

Kristian Lam
Blackmagic Design
Bruce Fraser
May 14, 2008 at 8:08 pm

I have an Apple 8bit SD timeline. Using LiveType or Boris Grafitti. Alpha over ntsc video.

Bruce
Massimo Croce
May 15, 2008 at 4:27 pm

it ‘s because you have check single field when paused in BMD preference. this mean that when the playhead is stopped you watch only one field in video out..
Bruce Fraser
May 16, 2008 at 4:44 pm

Thanks for the hint. In the Decklink system prefs there’s a checkbox that says: Remove field jitter when video is paused.
Kind of counter intuitive but unchecking that box made the graphics perfectly clear.

Thanks,
Bruce

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