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Hello,
I have a big problem. I've created an animation for a little project and
when I use the rendered pictures to create a video and burn this onto a dvd
then a horizontal scrolled text is very weird flickering... It's really
ugly und I have no idea how I could stop this.
I've uploaded my project to this site:
http://mitglied.lycos.de/wisheu/brombeere.rar
perhaps somebody could help me.
Thanks in advance
Michael
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From: Le Forgeron
Subject: Re: text flickers when an animation is burned onto a dvd...
Date: 18 Apr 2005 03:21:08
Message: <42635fe4$1@news.povray.org>
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
wisheu wrote:
> Hello,
>
> I have a big problem. I've created an animation for a little project and
> when I use the rendered pictures to create a video and burn this onto a dvd
> then a horizontal scrolled text is very weird flickering... It's really
> ugly und I have no idea how I could stop this.
>
> I've uploaded my project to this site:
> http://mitglied.lycos.de/wisheu/brombeere.rar
>
> perhaps somebody could help me.
How is your movie encoded ?
Beware of interlaced/progressive choice.
Is it flickering on TV or on computer display ?
Which encoder are you using ?
What is the frame rate ?
What is the IPB sequence used ?
Does your encoder have tunable motion detection ?
Can you tune the bitrate ? Can you turn it to the max (~9Mb/s for the
video stream) ?
If colour were to be dismissed (N&B movie), would your scrolled text
still be visible and fine ? (typical encoding use a 4:2:2 or 4:1:0
pattern, encoding light full bandwidth, but color only one fourth of it)
What is the size (in pixel) of your scrolling text ?
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Le Forgeron <jgr### [at] free fr> wrote:
> How is your movie encoded ?
I've tried Divx and HuffYUV with the highest quality settings and with
progressive and interlaced. For DVD encoding I tried Nero 6.0.0.6 and
Pinnacle Studio 9.4. It seems that this is no problem of the codec...
somehow it seems that I have qhost images... Sorry. I don't know a better
word.
> Is it flickering on TV or on computer display ?
On computer display and TV but on TV it's realy ugly. It flickers between
each frame.
> Which encoder are you using ?
Tried Divx & HuffYUV...
> What is the frame rate ?
25 fps. 720x576 PAL
> What is the IPB sequence used ?
Sorry I don't know.
> Does your encoder have tunable motion detection ?
Divx: Yes. I've tried some settings.
> Can you tune the bitrate ? Can you turn it to the max (~9Mb/s for the
> video stream) ?
I've tried these settings.
> If colour were to be dismissed (N&B movie), would your scrolled text
> still be visible and fine ? (typical encoding use a 4:2:2 or 4:1:0
> pattern, encoding light full bandwidth, but color only one fourth of it)
Sorry. I have no idea how I could change this. Is this an encoder option?
> What is the size (in pixel) of your scrolling text ?
720x300, whole resolution is 720x576
I think this is a problem of my rendered images. When I use HuffYUV then it
flickers too and HuffYUV if a looseless codec. Perhaps I have a problem
with the light in my scene... I don't know. This is my first project in POV
Ray and perhaps I will find a solution today.
Best Regards
Michael
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Could it be that my video ist too "quick". Is it possible that I need
mothion blur? And when yes, how could I do this?
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From: Mike Raiford
Subject: Re: text flickers when an animation is burned onto a dvd...
Date: 18 Apr 2005 14:58:18
Message: <4264034a$1@news.povray.org>
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wisheu wrote:
> Could it be that my video ist too "quick". Is it possible that I need
> mothion blur? And when yes, how could I do this?
>
>
One possible way to combat this would be to render the animation so it
runs at 30fps(NTSC) or 25fps(PAL), then the odd/even fields problem is
less of an issue.
Was the animation done @60fps? If so, try dropping half the frames, or
combining pairs of frames to slow the framerate. View the animation on a
progressive scan device (Computer MPEG player, HDTV w/ Progressive DVD
player...). Observe whether you can see a "combing" effect. If this is
the case, then transfering a 30fps animation to DVD may work better.
Man, I hope that makes sense.
--
~Mike
Things! Billions of them!
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hmm... I 've tested many options 50 fps, 25 fps, interlaced, progressive...
this all not the problem...
It seems realy that my animation is to quick for a tv screen and I'll try
tommorow how it looks with motion blur... If I find a good software for
this.
If I don't find a solution I will upload a little demo-animation where
everybody could see this problem even on an computer monitor.
Best regards
Michael
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My problem was realy motion blur. I've added it with an video editing
software and now it runs smoothly on my tv.
Here is my final animation.
Thanks for all your help.
http://mitglied.lycos.de/wisheu/brombeere%20-%20divx.avi
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