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General => Image Sharing => Topic started by: dandelO on July 18, 2011, 04:52:45 PM

Title: Two cold and windy updates
Post by: dandelO on July 18, 2011, 04:52:45 PM
Here's a couple of updates to 2 little animations.

Firstly, a version of the snowy ones I made that Neon22 has edited, improved and rendered, a couple of weeks ago.
http://www.youtube.com/watch?v=8gTfJwi7QYk

And, another version of the windy trees with some DOF, AA=8 and higher res.
http://www.youtube.com/watch?v=Mx-Uh2Xd4UE

Cheers! :)
Title: Re: Two cold and windy updates
Post by: Oshyan on July 18, 2011, 04:57:11 PM
DoF in the 2nd seems a bit inconsistent (at the beginning things are more in focus at similar-seeming distance). But the DoF is decent. Both are pretty cool overall, but would really like to see in HD (720P). ;D

- Oshyan
Title: Re: Two cold and windy updates
Post by: Markal on July 18, 2011, 05:36:41 PM
Very impressive...I think I'll wait to post my measly image :)
With a bit more detail and length, I could see this being used on the discovery channel!!!
Title: Re: Two cold and windy updates
Post by: Dune on July 19, 2011, 03:19:11 AM
The windblown trees are amazing, Martin!!!
Title: Re: Two cold and windy updates
Post by: inkydigit on July 19, 2011, 10:14:09 AM
I echo Ulco et al!
Title: Re: Two cold and windy updates
Post by: Matt on July 27, 2011, 03:13:14 AM
Does fresh snow really only fall in patches like that? It gives me the impression of old melting snow, not new snow building up.
Title: Re: Two cold and windy updates
Post by: Dune on July 27, 2011, 05:14:24 AM
Just reverse the video  ;D
Title: Re: Two cold and windy updates
Post by: neon22 on July 27, 2011, 06:50:17 AM
Quote from: Matt on July 27, 2011, 03:13:14 AM
Does fresh snow really only fall in patches like that? It gives me the impression of old melting snow, not new snow building up.
haha yes - well the "excuse" is that the snow builds up on the ground where its colder before it builds up where its warmer.
also it "falls" into depressions and fills them up.

I could have used GC2 to create mattes in the lee of the hills and used that - would have been more "accurate" but couldn't be bothered going to all that effort...

But hey.. whatever...
Title: Re: Two cold and windy updates
Post by: Tangled-Universe on July 27, 2011, 08:32:45 AM
Essentially Matt is right of course. Snow does not selectively fall into depressions. It's also not able to roll into depressions so the buildup should actually be the same throughout the whole terrain.

I remember that once someone for a commission wanted me to have snow build up first at higher altitudes and then at lower altitudes in a time-lapse video and really thinking that that's how it works in reality :)
Title: Re: Two cold and windy updates
Post by: Henry Blewer on July 27, 2011, 09:10:13 AM
A bit of topic... I have found that snow builds up on sidewalks first. :P
Title: Re: Two cold and windy updates
Post by: dandelO on July 28, 2011, 12:16:25 PM
Quote from: Oshyan on July 18, 2011, 04:57:11 PM
DoF in the 2nd seems a bit inconsistent (at the beginning things are more in focus at similar-seeming distance). But the DoF is decent. Both are pretty cool overall, but would really like to see in HD (720P). ;D

- Oshyan

1280x720HD version of the windy one is now rendered. Once processed I'll upload it later on...
* Had to drop the DOF because I can't seem to get around the fact that each render bucket acts like its own camera lens, blurring the bucket towards the edges. The only way I could have done it in 1280x720 was to render with 1 thread over 4 instances of TG and I really didn't have time for that. So, it's just back to motion blur only...
Title: Re: Two cold and windy updates
Post by: jamfull on July 28, 2011, 04:52:46 PM
If you still wanted DOF, I think you could render a z-depth pass of the animation then do the blur in photoshop/aftereffects etc... (Haven't tried this yet as I do not have the animation package.)

James
Title: Re: Two cold and windy updates
Post by: dandelO on July 28, 2011, 05:08:14 PM
Yes, that would be doable, I've done it before for stills. It should only take another pass and then a batch operation in PS to apply it but the DOF in this previous version was TG-rendered.
To get around the issue of the outer edges of each render bucket blurring, I had to make each render bucket the size of the final render, limit TG to work on just one core per render and use new instances of TG to do different sequences of the animation simultaneously in this configuration. Waiting on a 1280x720p version at those settings wasn't practical at all, especially with the hang(pc freeze)time between frames with the high AA settings in the micropolygon renderer that I needed to use.

I might try and do the long-way-round Z-depth pass before I process the frames into a video, I might not... :D
Title: Re: Two cold and windy updates
Post by: dandelO on July 31, 2011, 01:30:38 PM
A light Breeze - 1280x720HD (http://vimeo.com/27116014)
Title: Re: Two cold and windy updates
Post by: Dune on August 01, 2011, 02:46:34 AM
I love it, Martin!
Title: Re: Two cold and windy updates
Post by: Kadri on August 01, 2011, 03:03:40 AM

DandelO are you sure this is 1280X720 HD ?
The 480 one in Youtube looks better or nicer compressed as this to me...
Or do i need new spectacles ?  :)
Title: Re: Two cold and windy updates
Post by: freelancah on August 01, 2011, 09:11:03 AM
I think it's been rescaled by Vimeo. I think you need some special user rights to have HD stuff there?
Title: Re: Two cold and windy updates
Post by: dandelO on August 01, 2011, 01:18:24 PM
I think FL is correct, it's probably just been compressed to a higher degree on Vimeo.
Also, the Youtube version hasn't let me use the 720HD option, 480px seems to be as high as I'm allowed to view it.
The animation was all rendered at 1280x720px.

Cheers, folks.