End credit roll interlacing issue (yes, I’ve tried ideas in other threads)

[Cadenas]

Does this rate work on PAL comps as well?

Thanks,

[Kevin Camp]

using the logic i used for 2k film to ntsc… for 2k film to pal i think a rate of 6 would be better.

essentiall, i think you need to look at the 2k comp height (1554) and devide that by pal height (576) and get a number around 2.7… cheat a little (like i did before) and round to 3.

so for the credit move comp, set the comp to a height of 3 x 576 = 1728. but keep the 2k comp width, so the comp size would be 2048×1728.

the rate for the move will need to be a multiple of 3 and even (like 6) if you need it to work for field renders:

rate = 6; // this could be 3 if rendering progressive in pal comp
x = position.value[0];
y = position.value[1] – ((time / thisComp.frameDuration) * rate);
[x, y]

you can now take the credit roll comp and drop that into a 2k (2048×1554) comp and render for film. you can also take the same credit roll comp and drop it into a pal (720×576) comp and scale it 33.33% (one third) and have it work there too, although you may need to make a framerate change in the credit roll comp to match the pal (25fps).

remember, though, if you are only creating a credit roll for sd pal you would only need to worry about whole pixel movement or even pixel movement, you wouldn’t need to be concerned about scaling factors between a 2k resolution and pal resolution. an there is a pretty easy to use flickerfree preset for that.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW