problem with panning

[Paul Fierlinger]

So I played it on my much more powerful animation computer and the breaking up isn't present anymore. I see some mild flickering only after the camera move slows down as it passes the big tree upfront. It's a nice camera scene BTW. I am then stumped as what can be done with this. Here's one thing I'd try: Only in the part where the flickering occurs, I'd make a copy of that section, advance it to the right or left by one frame and set the transparency value on both layers to 50%. You would end up with three layers; the part with no flickering and the the two layers at 50% each of the flickering part. But frankly, I see little wrong with the pan, perhaps due to the size and diminished quality of the QT.

[Fabrice]

Sorry, but I can't figure where the problem is.

[Paul Fierlinger]

Fabrice, you'll see it only if you concentrate on watching the big tree as it passes by and then you'll also notice the middle one, but I dare say this is something that could easily happen with a live action camera; it's very forgivable in my opinion.

[peterkneter]

thank you for your advice Paul. i will try that.
@fabrice: you have to watch the edges of the trunk while playing or holding the arrows to play for and backwarts. there you see the flickering.
in HD it is even worse but here is just a compressed file....

[ZigOtto]

thanks for the .mov, it helps a lot to go further .

well, I don't see a "so big" flickering problem,
basically, animations are not made for playing them frame by frame,
though I do see 2 problems here, one technical, the other rather artistic.

- the first one, in relation to your problem, is the moving pan of the trunk layer, not strickly according to the bg moving,
I mean the speed variation on the camera is different that the speed variation of the trunk crossing the field,
if you look closely to the trunk moving, you can see (from 00:00:03 to 00:00:04) it goes from the right to the left
faster than the bg, up to covering the bg's little bridge, that's right,
but then, when the camera speed up (from 00:00:04 to 00:00:05), the trunk stay sticked at the same place,
just upfront the bridge, moving at the same speed, its moving should stay faster than the deeper bg.
also, the horiz. blur should evoluate according to the cam moving speed, I mean when the cam speed up,
the blur effect should increase accordingly, when the cam slow down, the blur should decrease according with,
it's really easy to do : use the same speed profile for both the Camera, the KF_fx and the Blur_fx.
and now my correlative questions :
have you tried a mix of the KF (internal) Motion Blur + the Camera Motion Blur ?
have you tried to set this scene via the MultiPlane_fx ?

- the second one, is relative to your character design for the butterfly,
I think this thick line does not serve the scene and looks way too heavy for a swift-winged butterfly,
and more, this boldy BLACK outline doesn't match with your "soft pastel" BG design,
it hurted a bit my eyes when it came, at least, try to use a colored outline, if you want to keep it thick like that.
ok, that's just aside your flickering problem, but I wanted to mention it,
because it disturbs me more than the overlayed panning trunk.

[slowtiger]

1. It's not a TVP problem. The pan was calculated correctly. I've checked this with putting some cel on my screen and advance the video frame by frame, marking a certain line every time: the increments were consistent.

2. I think it's just a playback problem, because sometimes it's there, sometimes not (at least it seemed so). Try to export the same scene with the H.264 codec (uncheck the keyframe option!).

3. I've seen worse every day in animation on TV.

4. You don't have that many options to avoid the effect. Some are: pan at slower speed, reduce contrast in the layers, avoid vertical lines.

[Peter Wassink]

To me it seems the flickr must be related to the way the QT is coded.

Because there is no problem with the images in the QT. As each individual frame looks good.
The flickr only manifests itself when you move to a next frame (either playing back or advancing frame by frame)

Try adjusting your QT settings especially the "images per second" and to uncheck the "complete frame after each:## "... option

[peterkneter]

Hi all,

thank you for your detailed and precise answers.

@zOtto: thank you for your precise look. i have corrected the speed of all layers and it looks better now! and yes the outline of the butterfly is to black and to thick!

I rendered everything and exportet it and burned it to Blue Ray. After the timig changes and the uncheck of the keyframe while exporting- it looks quite good. (even though there are some of these pixels again - always on different places when replaying but this has to do with the Blue Ray player I think) There is still this flickering of the trunk in front of the bright BG but may be i am too much into it...

so thanks again for your profund knowledge and the ideas!
P.

[MrChoy]

Sorry. Late to the party but maybe this will be helpful for the future.

Back in the old days (Real camera and cells) I got this a couple of times on camera moves. We called it Strobing. I think Its to do with how fast the camera move is and how your brain processes it. I have previously got rid of this in post production - some operator split the move into fields somehow. Another way is to blur the move. If you have After effects there is a brilliant plug-in called revision effects reelsmart motion blur:
http://www.revisionfx.com/products/rsmb/" onclick="window.open(this.href);return false;
It takes frame by frame images and calculates the motion blur. Great for drawn animation. I'm back to TVP after many years so there may be something in the new TVP that could do something similar?

[Peter Wassink]

S... Another way is to blur the move. If you have After effects there is a brilliant plug-in called revision effects reelsmart motion blur:....... I'm back to TVP after many years so there may be something in the new TVP that could do something similar?

There is a motion blur option in the FXstack-rendertab that lets you add a motionblur to anything you move with it.
And among the blur effects there is a "Motion blur" which lets you animate blur manually.

an FX like the reelsmart one that lets you apply the motionblur automaticly afterwards is still missing though.

[MrChoy]

Cheers Peter
The manual version might do the trick for a pan.
TVP has improved hugely since V8. I've got quite a bit of re-learning to do