BAD flickering effect on vertical movement

[Justin Productions]

Maybe a screenshot would help because I don’t fully understand what you mean.

Hope someone will help you.

Justin Productions
Tangerin01@hotmail.com
Adobe After Effects 6.0 Professional

[Aharon Rabinowitz]

Is the flickering in After Effects or after you render? Please be as descriptive as possible.

If it’s after you render, try rendering with fields, which usually takes care of flickering due to motion.

—————————————-
Aharon Rabinowitz
aharon(AT)yahoo(DOT)com
http://www.allbetsareoff.com
—————————————-
Creative Cow Master Series DVD
particleIllusion Fusion Volume 1
available @ http://www.pIllusionFusion.com

[Dynastar]

I have the same problem. How do you render with fields?

[Aharon Rabinowitz]

I totally forgot to ask – do you have motion blur turned on for the layer you;re sliding? If not, that could explain it, as well. Turn on motion blur for the layers and comp.

In your render queue, go into the render settings, and from the section called Time sampling find the pull-down by the word Filed Render. Usually, iat least in the USA, you choose, Lower Field First (LFF), but you could choose Upper Field First (UFF). It doesn’t actually matter so long as the Non-linear editor (NLE) you bring it into knows what the field order is.

AE will render the video interlaced. You may find the motion looks a little too smooth or mechanical. Occasionally this is a problem.

Interlacing is only good for broadcast, BTW – if you;re doing this for the web or film, it’s not a solution.

—————————————-
Aharon Rabinowitz
aharon(AT)yahoo(DOT)com
http://www.allbetsareoff.com
—————————————-
Creative Cow Master Series DVD
particleIllusion Fusion Volume 1
available @ http://www.pIllusionFusion.com

[Pixelbasher]

Thaks Aaron

The problems happend when I render and when i RAM preview in after effect,
it’s seem to only happend whit the camera speed on a the vertical movement
I have try rendering whit and without field, the problems is still there,
I am preview the clip in FCP on a AJA card and it’s lower fields through a brdc monitor
and yes I have also put the motion blur effect, I have notice that the problems mostly append where there is a big contrast between the white backgrouns and the people in front ( but have no choice of the colors) the best part to see the BAD flcikering effect is at the end of the clip whit the men giving a kiss, and most of the forground peoples

There is a quicktime link
the codec is in H264 make sure to have the good quicktime
https://www.pixelbasher.com/flicker
is only 5Mo but no stream be patient

thanks everyone for your help.!!
pixelbasher

[Aharon Rabinowitz]

I would swear this was an interlaceing issue. Moving anything horizontal this way almost always requires that you render with fields.

Maker sure that you are seperating the fields properly when importing into AE, and when you are rendering.

If you don’t interprete the fields properly on the way in, it could definately cause a problem like this.

Also – and this could be it – check that your video footage and composition both have the same frame rate. If there is a disparity between either this could explain it becasue AE is either skipping frames of the footage or repeating frames depending on the settings.

—————————————-
Aharon Rabinowitz
aharon(AT)yahoo(DOT)com
http://www.allbetsareoff.com
—————————————-
Creative Cow Master Series DVD
particleIllusion Fusion Volume 1
available @ http://www.pIllusionFusion.com

[Pixelbasher]

Humm I have re-render making sure the field was setup properly (everything was a lower field footage and render)
and the frame rate was at 29.97 same for both, I seem it got something to do with rhe camera speed ?!
I think I will do the same thing whit horizontal movement to see if it come from the camera movement
Thank anyway if you have another input let me know

pixelbasher