jerky picture
by firas hammash
on
Jul 22, 2009 at 1:50:41 pm
i am working in broadcast design, usually when i render 3D animation and trying to composit it in after effect i have jerky picture seen only on crt monitor screen, but on computer lcd its ok, iam using PAL D-1, 720*576 25FPS. usually i renderd the 3d animation to TGA sequince full frams (no feilds), i heard from some people that i need to render fields from 3dsmax, i did but the problem still there, i have 3dsmax 2008 and iam compositing on after effect CS3 and with black magic decklink extrem card to previw on the TV monitor, after that i export the animation to primere to add the music there and export for the broadcast machine with following settings:
microsoft DV pal avi 25fps upper feild first
rally i need help in this issue so please can anybody help me with some details
Re: jerky picture by ben rollason on Jul 23, 2009 at 12:27:45 pm
Check that After Effects is interpreting the footage at the right frame rate.
Click on the imported footage in the project window and hit Ctrl-F (PC) or command-F (Mac). This brings up the interpretation dialogue box. Make sure that this frame rate is the same as the frame rate of your composition and the frame rate that you are exporting at.
If you had rendered in fields, then it could be that they were being interpreted the wrong way up, but you'd only notice this on a broadcast monitor or if you slowed the footage down.
If you exported from 3D as full frames, that shouldn't make the footage jerky.
