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Author Topic: my psichedelic fly (move)  (Read 4195 times)
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kameelian
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« Reply #15 on: January 16, 2012, 11:54:27 PM »

Gosh, you're right bib; it has really bad artifacts - unlike most of your work. What have they done to it?  I bet the original looks great though - cool location.

As you will see in my reply above, I too am having difficulty with compression (not only to Youtube but to DVD), so I am not really best placed to offer advice. You might find a program that converts to FLV that you are happy with, so that Youtube does not need to convert again. I hear that AViDemux (free) is good at this (but I have not tried it yet). I tried Total Media Converter but was not happy with the FLV result at the settings I tried. There are SO many settings to try yet though.

I have stopped using virtual dub because (1) it cannot cope with non-sequential numbered files (2) decent quality gives huge files (3) I don't seem to be able to mix frame rates for different sections that may need speeding/slowing - just one frame rate for all. (is this correct?)

Yet, all of this can be done in Windows Live Movie Maker - but it gives a less sharp finish - but - I am learning that some of this and some compression artifacts are less apparent if the original pictures had antialiaing. So I'm just laboriously rerendering some stuff @ x2AA (x3AA would take an age on top of what has already been redone) in the hope that this is part of the answer - starting with the best pictures from the beginning of the process.

If you or anyone finds the answer, I'm sure lots of us would like to know too.

regards
Kam
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bib
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« Reply #16 on: January 17, 2012, 12:03:42 AM »

The artifacts and the pixelation come mainly from low contrast areas. Usually my videos are highly contrasted, that's why it's more visible in this one.

As to your 3 remarks about Virtualdub.
(1) is probably true but you can use a great freeware called Bulk Rename Utility to rename your frames prior to throwing them into Vdub. It's very flexible.
(2) is wrong. You can use various codecs to compress your video, visit the menu Video/compression.
(3) is probably true


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kameelian
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« Reply #17 on: January 17, 2012, 12:29:55 AM »

...you can use a great freeware called Bulk Rename Utility to rename your frames prior to throwing them into Vdub.

Yes I know it is possible to rename - but as I am prone to compile different (improved) 'takes' of anim sequences, I am so disorganised that if I rename them, I will lose which anim file created which sequence...in case I need to use them again. I guess I need to get better organised.

As for compression in Vdub; I wish I could find an authoring tool that only required a single conversion from a series of pictures to finished product. Oh well...

kam
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kameelian
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« Reply #18 on: January 17, 2012, 05:29:59 PM »

well, if you read this, bib, I'm quite pleased you were also struggling to get a good compression as, because of it, you posted this link to the H.264 tutorial for Virtual Dub
 (http://www.donsalva.com/2009/03/01/virtualdub-720p-hd-settings-youtube).
Following it, I have finally managed to get a very low file size vs v.good visual quality at 720(!) All I need now is to get it to stop stuttering as if it is only @ 5fps.
(another reason to have stopped using it). Thanks, it works, folks.

Kam
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bib
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« Reply #19 on: January 17, 2012, 05:40:57 PM »

v.good visual quality at 720(!)

Do you mean on your PC or on Youtube?
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kameelian
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« Reply #20 on: January 17, 2012, 05:48:10 PM »

Ah, a good point.

Just on PC at the moment. As I said, this has been a problem area for me.
So, having the day off, I spent some of it fiddling with settings and some old test renders.

Youtube test still to come...

I would qualify my 'v.good quality at 720' comment by adding that this is only because
of the remarkable reduction in file size that makes the visuals acceptable.

My issue at present isn't really in getting a small size, but getting the highest quality onto
a DVD - (so I can allow 4.7GB). At this range, I expect near DVD quality, just not full HD,
but, alas, converting full HD down to VOB files really hasn't gone well so far.

Youtube is a different issue, but I have seen some of my 720 conversions go ok, really.

regards
Kam

« Last Edit: January 17, 2012, 06:26:07 PM by kameelian » Logged

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slon_ru
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« Reply #21 on: January 25, 2012, 09:47:49 PM »

Bib, Your artifacts come (imho) from the M3D, not from the codec, try to increase the quality of rendering.
For gud codec quality try this:
http://www.fractalforums.com/fractal-related-links/mandelbox-animation-t10212/msg40802/#msg40802
Best regards!
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bib
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« Reply #22 on: January 25, 2012, 10:01:59 PM »

slon_tu, yes there are many artefacts that come from M3D but this is not the problem. The problem is neither the codec. The problem is that Youtube compresses video horribly. I am sure that there is a way to minimze this effect, maybe by saving the video in a format that Youtube will recognize as already compressed like it wants so it won't compress it anymore. But honestly I have spent way too much time doing tests, so I give up.
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slon_ru
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« Reply #23 on: January 25, 2012, 10:29:19 PM »

Bib, for good quality of video you need about 20.000-30.000 kb/s bitrate, It"s really does not matter which codec you use, but youtube make it 2000-3000 kb/sec max. Abandon hope ...
sorry for my english.
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bib
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« Reply #24 on: January 25, 2012, 10:33:12 PM »

No problem with your English, mine is not much better cheesy

But still, I am impressed by your video. I am sure that if I had done the same and uploaded to Youtube it would be totally pixelated cheesy  surrender; give up
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slon_ru
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« Reply #25 on: January 25, 2012, 11:11:38 PM »

Bib, sent me pm your m3a file and i try make 10-20 sec "clear" youtube video. We'll see. (i can do it after 02.02.12, i"m on vacation now)
br
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« Reply #26 on: February 08, 2012, 12:40:05 PM »

Hi Bib!
Ufff, I going back home on my vacation!

I can"t make video better - Min R parametr is to high, fractal is not "stable". imho - make im low (0.5-1.2).

<a href="http://www.youtube.com/v/cF0vPxJZyRg&rel=1&fs=1&hd=1" target="_blank">http://www.youtube.com/v/cF0vPxJZyRg&rel=1&fs=1&hd=1</a>

For pure video you need a better source smiley
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bib
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« Reply #27 on: February 08, 2012, 01:31:12 PM »

Thank you very much slon_ru.

No problem with the fractal parameters, what I was interested in was the Youtube compression, and it seems you did a better job than me. Did you assemble the frames in Virtualdub, can you tell me the detailed settings of the compression method you chose?

thanks

bib
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slon_ru
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« Reply #28 on: February 08, 2012, 09:39:34 PM »

Hi bib,

I"ve rendered you m3a file with Raystep mupltiplier=0.1 and Max. iterations=2000 as *.png sequence.
... loaded sequence in VDub, applay "levels" filter (not necessarily).
... used free XVID codec, with quantization=2 (codec setup/quantization.).
... saved sequence as avi. Video have >20.000 kb/s bitrate (90 mb).
... load video in youtube and vimeto, if i save my Vido back, it is 3.000 kb/sec (3mb) only ! sad
p.s. for "slow-time" effect need you  adobe ae.
sorry for my english.

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bib
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« Reply #29 on: February 08, 2012, 09:44:07 PM »

OK thanks
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