[Thomas Gabrielsen]

Thanks again Tom!

[Thomas Gabrielsen]

Thanks for a good answer Tom!

Does that mean that if I use rectangulare (non-square) pixels in After Effects, there’s no problem rendering out a movie wiht square pixels with good result later?
I guess it’s worse to dot it the other way?

Thanks in advance!

Thomas

[Thomas Gabrielsen]

Hello everybody, and thank you all for your answers!

I read all the answers here, done a lot of searching, phoned some colleagues, you name it but I still havent been able to find a clear answer to this problem. It seems to me that it is a combination of several reasons why this happens, and therefore my solution also was a combination of the advises you and other people have given me.

This is my conclusion:
– When a static object is moved over the screen with the same and particular speed the eye can easily see that the animated object jumps from one frame to the other. I think this effect can be stronger if the speed of the animation and/or the frame rate in some way interfere with the refresh rate of the display. Since I not always know the refresh rate of the display I think I just have to live with this. (Thomas Leong talked about this)

– sam.mltn talked about high bandwidth, dropped frames, and low fps. This was not a problem on my computer, but it came clear to my that it was a problem om other systems, including my clients system. The resolution had to be 1366×768 because it should be runned on a 65 inch plasma screen. Therefore I used a higher compression to lower the bandwith and that helped a little bit.

– Thomas Leong mentioned keyframes every 5th frame and that put me on the idea to use keyframe on every frame so that the frame should be as equal as possible. That helped a little bit too.

– Someone (might be my own brain) also menitioned that I could slow down the animation, and so I did and it helped a little bit too.

– Finaly someone suggested that I could ad a horisontal gaussian blur, so I did, and that also helped a little bit.

All this solutions helped so much that the client was satisfied. 🙂

Thanks,
Thomas

[Thomas Gabrielsen]

Oh well, this is still giving me headache!

RealEthan: It’s not actually footage, it’s images made in Photoshop (psd), except the heads which are masks. Sorry, my fault. I used the wrong word.

sam.mltn: I thought so too, but on my computer the file runs with 25fps and it’s not dropping any frames. I’ve made an animation test: https://filer.fildeling.no/test_animation_3_1.wmv. This is just an animated solid layer with a mask and as you can see it is still jumpy with this anoying vibrations around the edges. I’ve posted the project here: https://filer.fildeling.no/test_project.aep.

Any idea, anyone?

Thanks,
Thomas

[Thomas Gabrielsen]

Thank you very much yikesmikes, that was exactly what I was looking for. Worked great 🙂

[Thomas Gabrielsen]

ok, the first line should be something like this: “… I want to add a layer with a mask that hides only the layer below (and not the layer(s) below that).”

BTW, the effect I’m trying to explain exist in Macromedia Flash.

🙂

[Thomas Gabrielsen]

The first url was destroyed by the period, use this instead: https://www.fildeling.no/filesharing/set_first_vertex/fig_01.jpg

[Thomas Gabrielsen]

Thank you very much! 🙂