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png/jpeg question
show user profile  stevey2shoes
HI
I was just wondering which file format you use for your animations?
If I get the colours right in 3ds MAX, by the time I see the finished jpeg or png, the picture is washed out.

I know it can be re worked in after effects, but I shouldn't have to, should I?
Steve

read 670 times
1/2/2012 4:27:27 PM (last edit: 1/2/2012 4:27:27 PM)
show user profile  IBENEZ21
Png can handle an alpha channel, Jpeg cannot. The picture being washed out is a function of your gamma settings.

James Cutler did a good explanation of Gamma and linear workflow:
http://www.mintviz.com/articles/gamma-correction-and-linear-workflow-explained/

Also on www.mintviz.com is a new article explaining the different file formats.
Photobucket

http://www.thunderhead3d.com

read 662 times
1/2/2012 4:48:06 PM (last edit: 1/2/2012 4:48:06 PM)
show user profile  advance-software
jpeg-2000 supports an alpha channel.

ye olde jpg doesn't (as stated).
read 653 times
1/2/2012 5:02:14 PM (last edit: 1/2/2012 5:12:23 PM)
show user profile  mrgrotey
...so max can save in jpeg2000 can it? obviously it must do because you wouldn't be one to put forward a pointless argument/suggestion now would you ;)

Grotey

read 642 times
1/2/2012 5:26:16 PM (last edit: 1/2/2012 5:27:12 PM)
show user profile  Garp
...here we go again...




read 636 times
1/2/2012 5:39:44 PM (last edit: 1/2/2012 5:39:44 PM)
show user profile  advance-software
afaik there's no current way to render frames out directly as j2k but I wouldn't advise doing that even if there was as you're best off rendering a frame sequence as uncompressed png then running through virtualdub or whatever to generate compressed/uncompressed video.

for single frame j2ks you can render as png then convert to j2k in gimp/photoshop or any other conversion tool of your choice. could probably write a save-to-j2k plugin for max fairly easily but I don't need that right now so it's not high priority. doesn't stop someone else writing one if the mood takes them ofc.

you can load jpeg-2000 images as bitmaps in max using a free plugin we supply.

j2k features much better compression than jpg (mp4 class wavelet vs mp2 class dct). like other wavelet compression tech, it's more compute intensive (slower to encode/decode) than the original jpg format.

use it if you want. avoid if you prefer. up 2 u.
read 634 times
1/2/2012 5:40:26 PM (last edit: 1/2/2012 5:51:25 PM)
show user profile  Mr_Stabby
i like tiff's, mostly because its up to all current standards and highly resistant to post processing (wont matter though if you just render 8bpc)

read 598 times
1/3/2012 12:44:06 AM (last edit: 1/3/2012 12:44:06 AM)
show user profile  Nik Clark
I would never use j2k because most things need a plugin to load them.

I render to PNG32 or TIFF.




read 594 times
1/3/2012 12:56:41 AM (last edit: 1/3/2012 12:56:41 AM)
show user profile  STRAT
Jpg does it for me, If I need an alpha i'll render it separately and use AE to comp it. depends what you intend your output for.





SJLEWORTHY.COM











read 592 times
1/3/2012 1:01:17 AM (last edit: 1/3/2012 1:01:17 AM)
show user profile  advance-software
> I would never use j2k because most things need a plugin to load them.

linux has native support. as does chrome as does infinity. since when is a plugin a big deal ? most of max is plugins. if the format is used, it'll become more popular & native support will be added to all mainstream apps. if it isn't it'll remain niche. your call.

>Jpg does it for me, If I need an alpha i'll render it separately

jpg sucks. lack of alpha is a bitch. artifacts are fugly, file size is large (by comparison to j2k). I have to use png everytime I want something with alpha on the web*. that p155e5 me off as png compression on anything non-trivial sux.

* html, the xsg 3D standard supports j2k as part of the spec.

everyone is of course still using mpg2 video because mp4 is really bad. that's basically your argument.
read 571 times
1/3/2012 10:27:39 AM (last edit: 1/3/2012 10:29:24 AM)
show user profile  Sir_Manfred
I thought everyone was using h264



Visit my Portfolio
http://www.Freds3D.com

read 558 times
1/3/2012 10:35:57 AM (last edit: 1/3/2012 10:35:57 AM)
show user profile  Nik Clark
>>your call.

Yes, it is, and I choose not to use it.


So, when do you need transparency in a web graphic, AS? Your website hasn't been updated for a number of years.




read 556 times
1/3/2012 10:37:50 AM (last edit: 1/3/2012 10:37:50 AM)
show user profile  herfst1
So no targa then?
read 554 times
1/3/2012 10:38:17 AM (last edit: 1/3/2012 10:38:17 AM)
show user profile  zeefusion
I will stay out of this one :p
read 551 times
1/3/2012 10:40:41 AM (last edit: 1/3/2012 10:40:41 AM)
show user profile  advance-software
h264 is wavelet.

> So, when do you need transparency in a web graphic, AS.

all the feking time. most stuff on this page has the background colour encoded into a jpg. if the colour scheme changes, it all has to be reworked or look wrong. ofc the web needs a lossy alpha supporting file format. ofc we should be using the best class of encoding that's available. ofc all apps should support this. they don't because it's not needed because no-one wants it. ?

tga's ok for lossless but may as well use png instead as it covers everything tga does and is web compatible.

wavelet compressed video with alpha wouldn't hurt either. will get to that at some stage. will be useful for animated avatars that blend onto their background. animated gifs get feking huge.
read 547 times
1/3/2012 10:42:59 AM (last edit: 1/3/2012 10:48:32 AM)
 
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